NÚMEROS INTEIROS RELATIVOS
Autor: Prof. Adriana Engroff | Publicado: 2014-04-30T12:14:00-07:00




NÚMEROS
INTEIROS RELATIVOS


INTRODUÇÃO:

Observe
que, no conjunto dos números naturais, a operação de subtração nem sempre é
possível exemplos:

a) 5 –
3 = 2 (possível: 2 é um número natural)
b) 9 – 9 = 0 ( possível: 0 é um número natural)
c) 3 – 5 = ? ( impossível nos números naturais)

Para
tonar sempre possível a subtração, foi criado o conjunto dos números inteiros
relativos

-1,
-2, -3,………

lê-se:
menos um ou 1 negativo
lê-se: menos dois ou dois negativo
lê-se: menos três ou três negativo

Reunindo
os números negativos, o zero e os números positivos, formamos o conjunto dos
números inteiros relativos, que será representado por Z.

Z = {
…..-3, -2, -1, 0, +1, +2, +3,……}

Importante:
os números inteiros positivos podem ser indicados sem o sinal de +.

exemplo

) +7 =
7
b) +2 = 2
c) +13 = 13
d) +45 = 45

Sendo que o zero não é positivo nem negativo

Temperatura: Usamos números positivos e negativos para marcar a temperatura. Se a
temperatura estiver em 20 graus acima de zero, podemos representá-la por +20
(vinte positivo) . Se marcar 10 graus abaixo de zero, essa temperatura é
representada por -10 (dez negativo). 

Conta bancária: é comum a expressão saldo negativo. Quando retiramos (débito) um valor
superior ao nosso crédito em uma conta bancária, passamos a ter saldo negativo.

Nível de altitude: quando estamos acima do nível do mar,
estamos em uma elevação (altitude positiva). &nbsp;Quando estamos abaixo do nível do mar, estamos
numa depressão (altitude negativa).

Fuso horário: Se a abertura de uma Copa do Mundo estiver ocorrendo às 12 horas em
Londres, você estará assistindo a essa cerimônia transmitida ao vivo, pela
televisão, em horário diferente. Se você estiver em São Paulo, será às 9 horas.
Em Tóquio, será às 21 horas do mesmo dia.

No Futebol :&nbsp;No Saldo de Gol do futebol, quando a equipe leva mais gols do que faz.
Exemplo: Uma equipe de futebol ganha o jogo 1 de
3x0 e perde o jogo 2 de 4x0, seu saldo de gol no campeonato será -1.

Isso
ocorre de acordo com a localização de cada cidade em relação a uma referência
(nesse caso, Londres), considerada o ponto zero.



EXERCICIOS


1)
Observe os números e diga:

-15,
+6, -1, 0, +54, +12, -93, -8, +23, -72, +72

a)
Quais os números inteiros negativos?
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b)
Quais são os números inteiros positivos?
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2)
Qual o número inteiro que não é nem positivo nem negativo?
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3)
Escreva a leitura dos seguintes números inteiros:








a) -8 =
b)+6 =
c) -10 =
d) +12 = 
e) +75 = 
f) -100 =










4)
Quais das seguintes sentenças são verdadeiras?

a) +4
= 4 =

b) -6
= 6 = 
c) -8 = 8 = 
d) 54 = +54 = 
e) 93 = -93 = 



5) As
temperaturas acima de 0°C (zero grau) são representadas por números positivos e
as temperaturas abaixo de 0°C, por números negativos. Represente a seguinte
situação com números inteiros relativos:

a) 5°
acima de zero = 
b) 3° abaixo de zero =
c) 9°C abaixo de zero=
d) 15° acima de zero =







REPRESENTAÇÃO
DOS NÚMEROS INTEIROS NA RETA

Vamos
traçar uma reta e marcar o ponto 0. À direta do ponto 0, com uma certa unidade
de medida, assinalemos os pontos que correspondem aos números positivos e à
esquerda de 0, com a mesma unidade, assinalaremos os pontos que correspondem
aos números negativos.

_I___I___I___I___I___I___I___I___I___I___I___I___I___I_
-6&nbsp;&nbsp;&nbsp; &nbsp;-5&nbsp;&nbsp;&nbsp; -4&nbsp;&nbsp; &nbsp;-3&nbsp;&nbsp;&nbsp; &nbsp;-2&nbsp;&nbsp;&nbsp; -1&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;0&nbsp;&nbsp;&nbsp; +1&nbsp;&nbsp; +2&nbsp;&nbsp; +3&nbsp;&nbsp;&nbsp;
+4&nbsp;&nbsp;&nbsp; +5&nbsp;&nbsp; +6



Exercícios

1)
Escreva os números inteiros:








a)
compreendidos entre 1 e 7 
b) compreendidos entre -3 e 3
c) compreendidos entre -4 e 2
d) compreendidos entre -2 e 4
e) compreendidos entre -5 e -1
f) compreendidos entre -6 e 0 










2)
Responda:








a)
Qual é o sucessor de +8? 
b) Qual é o sucessor de -6? 
c) Qual é o sucessor de 0 ? 
d) Qual é o antecessor de +8?
e) Qual é o antecessor de -6? 
f) Qual é o antecessor de 0 ? 










3)
Escreva em Z o antecessor e o sucessor dos números:








a) +4 
b) -4 
c) 54 
d) -68
e) -799
f) +1000










NÚMEROS
OPOSTOS E SIMÉTRICOS

Na
reta numerada, os números opostos estão a uma mesma distancia do zero.

&nbsp;I___I___I___I___I___I___I___I___I___I___I___I___I___I_
-6&nbsp;&nbsp;&nbsp; -5&nbsp;&nbsp;&nbsp;&nbsp; -4&nbsp;&nbsp;&nbsp;
-3&nbsp;&nbsp;&nbsp; -2&nbsp;&nbsp;&nbsp; -1&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;0&nbsp;&nbsp; +1&nbsp;&nbsp;
+2&nbsp;&nbsp;&nbsp; +3&nbsp;&nbsp; +4&nbsp;&nbsp; +5&nbsp;&nbsp;&nbsp; +6

Observe
que cada número inteiro, positivo ou negativo, tem um correspondente com sinais
deferentes exemplo:

a) O
oposto de +1 é -1.
b) O oposto de -3 é +3.
c) O oposto de +9 é -9.
d) O oposto de -5 é +5.

Obsevação:
O oposto de zero é o próprio zero.









EXERCÍCIOS

1)
Determine:








a) O
oposto de +5 = 
b) O oposto de -9 = 
c) O oposto de +6 = 
d) O oposto de -6 = 
e) O oposto de +18 =
f) O oposto de -15 = 
g) O oposto de +234=
h) O oposto de -1000 =










COMPARAÇÃO
DE NÚMEROS INTEIROS 

Observe
a representação gráfica dos números inteiros na reta.

-I___I___I___I___I___I___I___I___I___I___I___I___I___I_
-6&nbsp;&nbsp; &nbsp;-5&nbsp;&nbsp;&nbsp;&nbsp; -4&nbsp;&nbsp; &nbsp;-3&nbsp;&nbsp; &nbsp;-2&nbsp;&nbsp;&nbsp; -1&nbsp;&nbsp;&nbsp;&nbsp;
&nbsp;0&nbsp;&nbsp;&nbsp; +1&nbsp;&nbsp; +2&nbsp;&nbsp; +3&nbsp;&nbsp; +4&nbsp;&nbsp; +5&nbsp; &nbsp;&nbsp;+6

Dados
dois números quaisquer, o que está à direita é o mair deles, e o que está à
esquerda, o menor deles.

Exemplos

a) -1
maior; -4, porque -1 está à direita de -4.
b) +2 maior; -4, porque +2 está a direita de -4
c) -4 menor -2 , porque -4 está à esquerda de -2.
d) -2 menor +1, porque -2 está à esquerda de +1.



Exercícios

1)
Qual é o número maior ?








a) +1
ou -10 
b) +30 ou 0 
c) -20 ou 0 
d) +10 ou -10
e) -20 ou -10 
f) +20 ou -30 
g) -50 ou +50 
h) -30 ou -15 










2) Compare
os seguintes pares de números, dizendo se o primeiro é maior, menor ou igual:








a) +2
e + 3
b) +5 e -5 
c) -3 e +4 
d) +1 e -1 
e) -3 e -6 
f) -3 e -2 
g) -8 e -2 
h) 0 e -5 
i) -2 e 0 
j) -2 e -4 
l) -4 e -3 
m) 5 e -5
n) 40 e +40
o) -30 e -10
p) -85 e 85 
q) 100 e -200
r) -450 e 300 
s) -500 e 400 










3) Coloque
os números em ordem crescente.








a)
-9,-3,-7,+1,0 

b) -2,
-6, -5, -3, -8 
c) 5,-3,1,0,-1,20 
d) 25,-3,-18,+15,+8,-9 
e) +60,-21,-34,-105,-90 
f) -400,+620,-840,+1000,-100 










4)
Coloque os números em ordem decrescente








a)
+3,-1,-6,+5,0 
b) -4,0,+4,+6,-2 
c) -5,1,-3,4,8 
d) +10,+6,-3,-4,-9,+1
e) -18,+83,0,-172, -64 
f) -286,-740, +827,0,+904 










ADIÇÃO
E SUBTRAÇÃO COM NÚMEROS INTEIROS

ADIÇÃO

1)
Adição de números positivos.

&nbsp;A soma de dois números positivos é um número
positivo.

EXEMPLO

a)
(+2) + (+5) = +7
b) (+1) + (+4) = +5
c) (+6) + (+3) = +9

Simplificando
a maneira de escrever

a) +2
+5 = +7
b) +1 + 4 = +5
c) +6 + 3 = +9

Observe
que escrevemos a soma dos números inteiros sem colocar o sinal + da adição e
eliminamos os parênteses das parcelas.

2) Adição
de números negativos

A soma
de dois números negativos é um número negativo

Exemplo

a)
(-2) + (-3) = -5
b) (-1) + (-1) = -2
c) (-7) + (-2) = -9

Simplificando
a maneira de escrever

a) -2
– 3 = -5
b) -1 -1 = -2
c) -7 – 2 = -9

Observe
que podemos simplificar a maneira de escrever deixando de colocar o sinal de +
na operação e eliminando os parênteses das parcelas.

EXERCÍCIOS



1)
Calcule








a) +5
+ 3 = 
b) +1 + 4 = 
c) -4 – 2 = 
d) -3 – 1 =
e) +6 + 9 =
f) +10 + 7 =
g) -8 -12 = 
h) -4 -15 = 
i) -10 – 15 =
j) +5 +18 = 
l) -31 – 18 =
m) +20 +40 =
n) -60 – 30 = 
o) +75 +15 = 
p) -50 -50 = 










2)
Calcule:








a)
(+3) + (+2) = 
b) (+5) + (+1) = 
c) (+7) + ( +5) =
d) (+2) + (+8) = 
e) (+9) + (+4) = 
f) (+6) + (+5) = 
g) (-3) + (-2) = 
h) (-5) + (-1) = 
i) (-7) + (-5) = 
j) (-4) + (-7) = 
l) (-8) + ( -6) =
m) (-5) + ( -6) =










3)
Calcule:








a) (
-22) + ( -19) = 
b) (+32) + ( +14) =
c) (-25) + (-25) = 
d) (-94) + (-18) = 
e) (+105) + (+105) = 
f) (-280) + (-509) =
g) (-321) + (-30) = 
h) (+200) + (+137) = 










3)
Adição de números com sinais diferentes

A soma
de dois números inteiros de sinais diferentes é obtida subtraindo-se os valores
absolutos, dando-se o sinal do número que tiver maior valor absoluto.

Exemplos

a)
(+6) + ( -1) = +5
b) (+2) + (-5) = -3
c) (-10) + ( +3) = -7

Simplificando
a maneira de escrever

a) +6
– 1 = +5
b) +2 – 5 = -3
c) -10 + 3 = -7

Note
que o resultado da adição tem o mesmo sinal que o número de maior valor
absoluto

Observação:

Quando
as parcelas são números opostos, a soma é igual a zero.

Exemplo

a)
(+3) + (-3) = 0
b) (-8) + (+8) = 0
c) (+1) + (-1) = 0

Simplificando
a maneira de escrever

a) +3
– 3 = 0
b) -8 + 8 = 0
c) +1 – 1 = 0



4) Um
dos números dados é zero

Quando
um dos números é zero , a soma é igual ao outro número.

Exemplo:

a)
(+5) +0 = +5
b) 0 + (-3) = -3
c) (-7) + 0 = -7

Simplificando
a maneira de escrever

a) +5
+ 0 = +5
b) 0 – 3 = -3
c) -7 + 0 = -7



Exercícios:


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1)
Calcule:








a) +1
– 6 = 
b) -9 + 4 = 
c) -3 + 6 = 

d) -8
+ 3 = 

e) -9
+ 11 = 
f) +15 – 6 = 
g) -2 + 14 = 
h) +13 -1 = 
i) +23 -17 =

j) -14
+ 21 = 

l) +28
-11 = 
m) -31 + 30 =










2)
Calcule:








a)
(+9) + (-5) = 
b) (+3) + (-4) = 

c)
(-8) + (+6) = 
d) (+5) + (-9) =
e) (-6) + (+2) =
f) (+9) + (-1) = 

g)
(+8) + (-3) =
h) (+12) + (-3) =
i) (-7) + (+15) = 

j)
(-18) + (+8) = 
i) (+7) + (-7) = 
l) (-6) + 0 = 
m) +3 + (-5) =
n) (+2) + (-2) =
o) (-4) +10 = 
p) -7 + (+9) =
q) +4 + (-12) =
r) +6 + (-4) = 










3)
Calcule








a) (+5
+ (+7) = 
b) (-8) + (-9) = 
c) (-37) + (+35) =
d) (+10) + (-9) = 
e) (-15 ) + (+15) =
f) (+80) + 0 = 
g) (-127) + (-51) =
h) (+37) + (+37) =
i) (-42) + (-18) = 
j) (-18) + (+17) =
l) (-18) + (+19) =
m) (-1) + (-42) = 
n) (+325) + (-257) =
o) 0 + (-75) = 
p) (-121) + (+92) =
q ) (-578) + (-742) =
r) (+101) + (-101) = 
s) (-1050) + (+876) =










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PROPRIEDADE
DA ADIÇÃO

1)
Fechamento : a soma de dois números inteiros é sempre um número inteiro

Exemplo
(-4) + (+7) =( +3)

2)
Comutativa: a ordem das parcelas não altera a soma.

Exemplo:
(+5) + (-3) = (-3) + (+5)

3)
Elemento neutro: o número zero é o elemento neutro da adição.

Exemplo:
(+8) + 0 = 0 + (+8) = +8

4)
Associativa: na adição de três números inteiros, podemos associar os dois
primeiros ou os dois últimos, sem que isso altere o resultado.

Exemplo:
[(+8) + (-3) ] + (+4) = (+8) + [(-3) + (+4)]

5)
Elemento oposto: qualquer número inteiro admite um simétrico ou oposto.

Exemplo:
(+7) + (-7) = 0



ADIÇÃO
DE TRÊS OU MAIS NÚMEROS

Para
obter a soma de três ou mais números adicionamos os dois primeiros e, em
seguida, adicionamos esse resultado com o terceiro, e assim por diante.

Exemplos

1) -12
+ 8 – 9 + 2 – 6 =
= -4 – 9 + 2 – 6 =
= -13 + 2 – 6 =
= -11 – 6 =
= -17



2) +15
-5 -3 +1 – 2 =
= +10 -3 + 1 – 2 =
= +7 +1 -2 =
= +8 -2 =
= +6

Na
adição de números inteiros podemos cancelar números opostos, porque a soma
deles é zero.



INDICAÇÃO SIMPLIFICADA

a) Podemos
dispensar o sinal de + da primeira parcela quando esta for positiva.

Exemplos

a)
(+7) + (-5) = 7 – 5 = +2

b)
(+6) + (-9) = 6 – 9 = -3

b)
Podemos dispensar o sinal + da soma quando esta for positiva

Exemplos

a)
(-5) + (+7) = -5 + 7 = 2

b)
(+9) + (-4) = 9 – 4 = 5



EXERCÍCIOS

1)
Calcule








a) 4 +
10 + 8 = 
b) 5 – 9 + 1 = 
c) -8 – 2 + 3 = 
d) -15 + 8 – 7 =
e) 24 + 6 – 12 = 
f) -14 – 3 – 6 – 1 =
g) -4 + 5 + 6 + 3 – 9 =
h) -1 + 2 – 4 – 6 – 3 – 8 = 
i) 6 – 8 – 3 – 7 – 5 – 1 + 0 – 2 = 
j) 2 – 10 – 6 + 14 – 1 + 20 = 
l) -13 – 1 – 2 – 8 + 4 – 6 – 10 = 










2)
Efetue, cancelando os números opostos:








a) 6 +
4 – 6 + 9 – 9 = 
b) -7 + 5 – 8 + 7 – 5 =
c) -3 + 5 + 3 – 2 + 2 + 1 = 
d) -6 + 10 + 1 – 4 + 6= 
e) 10 – 6 + 3 – 3 – 10 – 1 = 
f) 15 – 8 + 4 – 4 + 8 – 15 = 










3)
Coloque em forma simplificada ( sem parênteses)








a)
(+1) + (+4) +(+2) = 
b) (+1) + (+8) + (-2) = 
c) (+5) +(-8) + (-1) = 
d) (-6) + (-2) + (+1) =










4)
Calcule:








a)
(-2) + (-3) + (+2) =
b) (+3) + (-3) + (-5) =
c) (+1) + (+8) +(-2) = 
d) (+5) + (-8) + (-1) =
e) (-6) + (-2) + (+1) =
f) (-8) + ( +6) + (-2) =
g) (-7) + 6 + (-7) = 
h) 6 + (-6) + (-7) = 
i) -6 + (+9) + (-4) =
j) (-4) +2 +4 + (+1) =










5)
Determine as seguintes somas








a)
(-8) + (+10) + (+7) + (-2) =
b) (+20) + (-19) + (-13) + (-8) = 
c) (-5) + (+8) + (+2) + (+9) = 
d) (-1) + (+6) + (-3) + (-4) + (-5) = 
e) (+10) + (-20) + (-15) + (+12) + (+30) + (-40) = 
f) (+3) + (-6) + (+8) = 
g) (-5) + (-12) + (+3) =
h) (-70) + (+20) + (+50) = 
i) (+12) + (-25) + (+15) = 

j)
(-32) + (-13) + (+21) = 
l) (+7) + (-5) + (-3) + (+10) =
m) (+12) + (-50) + (-8) + (+13) = 
n) (-8)+(+4)+ (+8) + (-5) + (+3) =
o) (-36) + (-51) + (+100) + (-52) =
p) (+17) + (+13) + (+20) + (-5) + (-45) =










6)
Dados os números x= 6, y = 5 e z= -6, calcule

a) x +
y = 
b) y + z = 
c) x + z = 



SUBTRAÇÃO

A
operação de subtração é uma operação inversa à da adição

Exemplos

a)
(+8) – (+4) = (+8) + (-4) = = +4
b) (-6) – (+9) = (-6) + (-9) = -15
c) (+5) – (-2) = ( +5) + (+2) = +7

Conclusão:
Para subtraímos dois números relativos, basta que adicionemos ao primeiro o
oposto do segundo.

Observação:
A subtração no conjunto Z tem apenas a propriedade do fechamento ( a subtração
é sempre possivel)



ELIMINAÇÃO
DE PARÊNTESES PRECEDIDOS DE SINAL NEGATIVO

Para
facilitar o cálculo, eliminamos os parênteses usando o significado do oposto, veja:

a)
-(+8) = -8 (significa o oposto de +8 é -8 )

b)
-(-3) = +3 (significa o oposto de -3 é +3)

Analogicamente:

a)
-(+8) – (-3) = -8 +3 = -5

b)
-(+2) – (+4) = -2 – 4 = -6

c)
(+10) – (-3) – +3) = 10 + 3 – 3 = 10

Conclusão:
podemos eliminar parênteses precedidos de sinal negativo trocando-se o sínal do
número que está dentro dos parênteses.



EXERCÍCIOS

1)
Elimine os parênteses:








a)
-(+5) = 
b) -(-2) = 

c) –
(+4) = 
d) -(-7) = 
e) -(+12) =
f) -(-15) = 
g) -(-42) =
h) -(+56) = 










2)
Calcule:








a)
(+7) – (+3) = 
b) (+5) – (-2) = 
c) (-3) – ( +8) = 
d) (-1) -(-4) = 
e) (+3) – (+8) =
f) (+9) – (+9) = 
g) (-8) – ( +5) =
h) (+5) – (-6) = 
i) (-2) – (-4) = 
j) (-7) – (-8) = 
l) (+4) -(+4) = 
m) (-3) – ( +2) =
n) -7 + 6 = 
o) -8 -7 = 
p) 10 -2 = 
q) 7 -13 = 
r) -1 -0 = 
s) 16 – 20 =
t) -18 -9 = 
u) 5 – 45 = 
v) -15 -7 = 
x) -8 +12 =
z) -32 -18 =










3)
Calcule:








a) 7 –
(-2) = 
b) 7 – (+2) =
c) 2 – (-9) = 
d) -5 – (-1) = 
e) -5 -(+1) = 
f) -4 – (+3) =
g) 8 – (-5) = 
h) 7 – (+4) =
i) 26 – 45 = 
j) -72 -72 = 
l) -84 + 84 =
m) -10 -100 =
n) -2 -4 -1 = 
o) -8 +6 -1 =
p) 12-7 + 3 =
q) 4 + 13 – 21 = 
r) -8 +8 + 1 = 
s) -7 + 6 + 9 =
t) -5 -3 -4 – 1 =
u) +10 – 43 -17 =
v) -6 -6 + 73 = 
x) -30 +30 – 40 =
z) -60 – 18 +50 =










4)
Calcule:








a)
(-4) -(-2)+(-6) = 
b) (-7)-(-5)+(-8) = 
c) (+7)-(-6)-(-8) = 
d) (-8) + (-6) -(+3) =
e) (-4) + (-3) – (+6) = 
f) 20 – (-6) – (-8) = 
g) 5 – 6 – (+7) + 1 =
h) -10 – (-3) – (-4) =
i) (+5) + (-8) = 
j) (-2) – (-3) = 
l) (-3) -(-9) = 
m) (-7) – (-8) =
n) (-8) + (-6) – (-7) = 
o) (-4) + (-6) + (-3) = 
p) 15 -(-3) – (-1) = 
q) 32 – (+1) -(-5) =
r) (+8) – (+2) = 
s) (+15) – (-3) =
t) (-18) – (-10) =
u) (-25) – (+22) =
v) (-30) – 0 = 
x) (+180) – (+182) =
z) (+42) – (-42) = 










5)
Calcule:








a)
(-5) + (+2) – (-1) + (-7) = 
b) (+2) – (-3) + (-5) -(-9) = 
c) (-2) + (-1) -(-7) + (-4) = 
d) (-5) + (-6) -(-2) + (-3) =
e) (+9) -(-2) + (-1) – (-3) = 
f) 9 – (-7) -11 = 
g) -2 + (-1) -6 = 
h) -(+7) -4 -12 =
i) 15 -(+9) -(-2) = 
j) -25 – ( -5) -30 =
l) -50 – (+7) -43 =
m) 10 -2 -5 -(+2) – (-3) = 
n) 18 – (-3) – 13 -1 -(-4) =
o) 5 -(-5) + 3 – (-3) + 0 – 6 =
p) -28 + 7 + (-12) + (-1) -4 -2 =
q) -21 -7 -6 -(-15) -2 -(-10) = 
r) 10 -(-8) + (-9) -(-12)-6 + 5 =

s)
(-75) – (-25) = 
t) (-75) – (+25) =
u) (+18) – 0 = 
v) (-52) – (-52) =
x) (-16)-(-25) = 
z) (-100) – (-200) = 










ELIMINAÇÃO
DOS PARENTESES

1) Parênteses
precedidos pelo sinal +

Ao
eliminarmos os parênteses e o sinal + que os precede, devemos conservar os
sinais dos números contidos nesses parênteses.

Exemplo

a) +
(-4 + 5) = -4 + 5

b) +(3
+2 -7) = 3 +2 -7

2)
Parênteses precedidos pelo sinal -

Ao
eliminarmos os parênteses e o sinal de – que os precede, devemos trocar os
sinais dos números contidos nesses parênteses.

Exemplo

a) -(4
– 5 + 3) = -4 + 5 -3

b)
-(-6 + 8 – 1) = +6 -8 +1



EXERCICIOS

1)
Elimine os parênteses:








a)
+(-3 +8) = 
b) -(-3 + 8) = 
c) +(5 – 6) = 
d) -(-3-1) = 
e) -(-6 + 4 – 1) = 
f) +(-3 -2 -1) = 
g) -(4 -6 +8) = 
h) + (2 + 5 – 1) = 










2)
Elimine os parênteses e calcule:








a) + 5
+ ( 7 – 3) = 
b) 8 – (-2-1) = 
c) -6 – (-3 +2) = 
d) 18 – ( -5 -2 -3 ) = 
e) 30 – (6 – 1 +7) = 
f) 4 + (-5 + 0 + 8 -4) =
g) 4 + (3 – 5) + ( -2 -6) =
h) 8 -(3 + 5 -20) + ( 3 -10) = 
i) 20 – (-6 +8) – (-1 + 3) = 
j) 35 -(4-1) – (-2 + 7) = 










3)
Calcule:








a) 10
– ( 15 + 25) = 
b) 1 – (25 -18) = 
c) 40 -18 – ( 10 +12) = 
d) (2 – 7) – (8 -13) = 
e) 7 – ( 3 + 2 + 1) – 6 = 
f) -15 – ( 3 + 25) + 4 = 
g) -32 -1 – ( -12 + 14) = 
h) 7 + (-5-6) – (-9 + 3) =
i) -(+4-6) + (2 – 3) = 
j) -6 – (2 -7 + 1 – 5) + 1 = 












EXPRESSÕES
COM NÚMEROS INTEIROS RELATIVOS

Lembre-se
de que os sinais de associação são eliminados obedecendo à seguinte ordem:

1°)
PARÊNTESES ( ) ;

2°)
COLCHETES [ ] ;

3°)
CHAVES { } .



Exemplos:

 

  
  
1°)
  exemplo

8 +
  ( +7 -1 ) – ( -3 + 1 – 5 ) =
  8 + 7 – 1 + 3 – 1 + 5 =
  23 – 2 = 21



  
  
2°)
  exemplo

10 +
  [ -3 + 1 - ( -2 + 6 ) ] =
  10 + [ -3 + 1 + 2 - 6 ] =
  10 – 3 + 1 + 2 – 6 =
  13 – 9 =
  = 4



  
  
3°)
  exemplo

-17
  + { +5 – [ +2 - ( -6 +9 ) ]} =
  -17 + { +5 – [ +2 + 6 - 9]} =
  -17 + { +5 – 2 – 6 + 9 } =
  -17 +5 – 2 – 6 + 9 =
  -25 + 14 =
  = – 11

 




EXERCICIOS

a)
Calcule o valor das seguintes expressões:








1) 15
-(3-2) + ( 7 -4) = 
2) 25 – ( 8 – 5 + 3) – ( 12 – 5 – 8) = 
3) ( 10 -2 ) – 3 + ( 8 + 7 – 5) = 
4) ( 9 – 4 + 2 ) – 1 + ( 9 + 5 – 3) = 
5) 18 – [ 2 + ( 7 - 3 - 8 ) - 10 ] = 
6) -4 + [ -3 + ( -5 + 9 - 2 )] = 
7) -6 – [10 + (-8 -3 ) -1] = 
8) -8 – [ -2 - (-12) + 3 ] = 
9) 25 – { -2 + [ 6 + ( -4 -1 )]} = 
10) 17 – { 5 – 3 + [ 8 - ( -1 - 3 ) + 5 ] } = 
11) 3 – { -5 -[8 - 2 + ( -5 + 9 ) ] } = 
12) -10 – { -2 + [ + 1 - ( - 3 - 5 ) + 3 ] } = 
13) { 2 + [ 1 + ( -15 -15 ) - 2] } = 
14) { 30 + [ 10 - 5 + ( -2 -3)] -18 -12} = 
15) 20 + { [ 7 + 5 + ( -9 + 7 ) + 3 ] } = 
16) -4 – { 2 + [ - 3 - ( -1 + 7) ] + 2} = 
17) 10 – { -2 + [ +1 + ( +7 - 3) - 2] + 6 } =
18) -{ -2 – [ -3 - (-5) + 1 ]} – 18 = 
19) -20 – { -4 -[-8 + ( +12 - 6 - 2 ) + 2 +3 ]} = 
20) {[( -50 -10) + 11 + 19 ] + 20 } + 10 = 












MULTIPLICAÇÃO
E DIVISÃO DE NÚMEROS INTEIROS

MULTIPLICAÇÃO

1) Multiplicação
de dois números de sinais iguais

Observe
o exemplo:

a)
(+5) . (+2) = +10
b) (+3) . (+7) = +21
c) (-5) . (-2) = +10
d) (-3) . (-7) = +21

Conclusão:
Se os fatores tiverem sinais iguais o produto é positivo

2)
Multiplicação de dois produtos de sinais diferentes

Observe
os exemplos

a)
(+3) . (-2) = -6
b) (-5) . (+4) = -20
c) (+6) . (-5) = -30
d) (-1) . (+7) = -7

Conclusão
: Se dois produtos tiverem sinais diferentes o poduto é negativo

Regra
pratica dos sinais na multiplicação

SINAIS
IGUAIS: o resultado é positivo

a) (+)
. (+) = (+)

b) (-)
. (-) = (+)

SINAIS
DIFERENTES: o resultado é negativo -

a) (+)
. (-) = (-)

b) (-)
. (+) = (-)



EXERCÍCIOS

1)
Efetue as multiplicações








a)
(+8) . (+5) = 
b) (-8) . ( -5) =
c) (+8) .(-5) = 
d) (-8) . (+5) = 
e) (-3) . (+9) = 
f) (+3) . (-9) = 
g) (-3) . (-9) = 

h)
(+3) . (+9) = 
i) (+7) . (-10) = 
j) (+7) . (+10) =
l) (-7) . (+10) = 
m) (-7) . (-10) =

n)
(+4) . (+3) = 
o) (-5) . (+7) = 
p) (+9) . (-2) = 
q) (-8) . (-7) = 
r) (-4) . (+6) = 
s) (-2) .(-4) = 
t) (+9) . (+5) =
u) (+4) . (-2) =
v) (+8) . (+8) = 
x) (-4) . (+7) = 
z) (-6) . (-6) = 










2)
Calcule o produto








a)
(+2) . (-7) =
b) 13 . 20 = 
c) 13 . (-2) = 
d) 6 . (-1) = 
e) 8 . (+1) =
f) 7 . (-6) = 
g) 5 . (-10) =
h) (-8) . 2 = 
i) (-1) . 4 = 
j) (-16) . 0 =










MULTIPLICAÇAO
COM MAIS DE DOIS NÚMEROS

Multiplicamos
o primeiro número pelo segundo, o produto obtido pelo terceiro e assim
sucessivamente, até o ultimo fator.

Exemplos

 

  
  
a)
  (+3) . (-2) . (+5) 

=
  (-6) . (+5) 

=
  -30



  
  
b)
  (-3) . (-4) . (-5) . (-6) 

=
  (+12) . (-5) . (-6)

=
  (-60) . (-6)

= +360

 




EXERCÍCIOS

1)
Determine o produto:








a)
(-2) . (+3) . ( +4) = 
b) (+5) . (-1) . (+2) = 
c) (-6) . (+5) .(-2) = 
d) (+8) . (-2) .(-3) = 
e) (+1) . (+1) . (+1) .(-1)= 
f) (+3) .(-2) . (-1) . (-5) = 
g) (-2) . (-4) . (+6) . (+5) =
h) (+25) . (-20) = 
i) -36) .(-36 = 
j) (-12) . (+18) =
l) (+24) . (-11) =
m) (+12) . (-30) . (-1) = 










2)
Calcule os produtos








a)
(-3) . (+2) . (-4) . (+1) . (-5) =
b) (-1) . (-2) . (-3) . (-4) .(-5) = 
c) (-2) . (-2) . (-2) . (-2) .(-2) . (-2) = 
d) (+1) . (+3) . (-6) . (-2) . (-1) .(+2)= 
e) (+3) . (-2) . (+4) . (-1) . (-5) . (-6) =
f) 5 . (-3) . (-4) = 
g) 1 . (-7) . 2 = 
h) 8 . ( -2) . 2 = 
i) (-2) . (-4) .5 =
j) 3 . 4 . (-7) = 
l) 6 .(-2) . (-4) =
m) 8 . (-6) . (-2) =
n) 3 . (+2) . (-1) =
o) 5 . (-4) . (-4) = 
p) (-2) . 5 (-3) = 
q) (-2) . (-3) . (-1) = 
r) (-4) . (-1) . (-1) = 










3)
Calcule o valor das expressões:








a) 2 .
3 – 10 =
b) 18 – 7 . 9 =
c) 3. 4 – 20 = 
d) -15 + 2 . 3 =
e) 15 + (-8) . (+4) = 
f) 10 + (+2) . (-5) = 
g) 31 – (-9) . (-2) = 
h) (-4) . (-7) -12 = 
i) (-7) . (+5) + 50 =
j) -18 + (-6) . (+7) =
l) 15 + (-7) . (-4) = 
m) (+3) . (-5) + 35 =










4)
Calcule o valor das expressões








a) 2
(+5) + 13 = 
b) 3 . (-3) + 8 = 
c) -17 + 5 . (-2) = 
d) (-9) . 4 + 14 = 
e) (-7) . (-5) – (-2) =
f) (+4) . (-7) + (-5) . (-3) = 
g) (-3) . (-6) + (-2) . (-8) = 
h) (+3) . (-5) – (+4) . (-6) =








PROPRIEDADES DA MULTIPLICAÇÃO

1)
Fechamento: o produto de dois números inteiros é sempre um número inteiro.

exemplo:
(+2) . (-5) = (-10)

2)
Comutativa: a ordem dos fatores não altera o produto.

exemplo:
(-3) . (+5) = (+5) . (-3)

3)
Elemento Neutro: o número +1 é o elemento neutro da multiplicação.

Exemplos:
(-6) . (+1) = (+1) . (-6) = -6

4)
Associativa: na multiplicação de três números inteiros, podemos associar os
dois primeiros ou os dois últimos, sem que isso altere o resultado.

exemplo:
(-2) . [(+3) . (-4) ] = [ (-2) . (+3) ] . (-4)

5)
Distributiva

exemplo:
(-2) . [(-5) +(+4)] = (-2) . (-5) + (-2) . (+4)



DIVISÃO

Você
sabe que a divisão é a operação inversa da multiplicação

Observe:

a)
(+12) : (+4) = (+3) , porque (+3) . (+4) = +12
b) (-12) : (-4) = (+3) , porque (+3) . (-4) = -12
c) (+12) : (-4) = (-3) , porque (-3) . (-4) = +12
d) (-12) : (+4) = (-3), porque (-3) . (+4) = -12



REGRA PRÁTICA DOS SINAIS NA DIVISÃO

As
regras de sinais na divisão é igual a da multiplicação:

SINAIS
IGUAIS: o resultado é +

(+) :
(+) = (+)

(-) :
(-) = (-)

SINAIS
DIFERENTES : o resultado é -

(+) :
(-) = (-)

(-) :
(+) = (-)



EXERCÍCIOS

1)
Calcule o quocientes:








a)
(+15) : (+3) =
b) (+15) : (-3) = 
c) (-15) : (-3) = 
d) (-5) : (+1) = 
e) (-8) : (-2) = 
f) (-6) : (+2) = 
g) (+7) : (-1) =
h) (-8) : (-8) = 
f) (+7) : (-7) = 












2)
Calcule os quocientes








a)
(+40) : (-5) =
b) (+40) : (+2) =
c) (-42) : (+7) = 
d) (-32) : (-8)= 
e) (-75) : (-15) = 
f) (-15) : (-15) = 
g) (-80) : (-10) =
h) (-48 ) : (+12) =
l) (-32) : (-16) = 
j) (+60) : (-12) =
l) (-64) : (+16) =
m) (-28) : (-14) =
n) (0) : (+5) = 
o) 49 : (-7) = 
p) 48 : (-6) = 
q) (+265) : (-5) = 
r) (+824) : (+4) = 
s) (-180) : (-12) =
t) (-480) : (-10) =
u) 720 : (-8) = 
v) (-330) : 15 =










3) Calcule
o valor das expressões








a) 20
: 2 -7 =
b) -8 + 12 : 3 =
c) 6 : (-2) +1 = 
d) 8 : (-4) – (-7) = 
e) (-15) : (-3) + 7 = 
f) 40 – (-25) : (-5) =
g) (-16) : (+4) + 12 =
h) 18 : 6 + (-28) : (-4) =
i) -14 + 42 : 3 = 
j) 40 : (-2) + 9 = 
l) (-12) 3 + 6 = 
m) (-54) : (-9) + 2 = 
n) 20 + (-10) . (-5) =
o) (-1) . (-8) + 20 = 
p) 4 + 6 . (-2) = 
q) 3 . (-7) + 40 = 
r) (+3) . (-2) -25 =
s) (-4) . (-5) + 8 . (+2) =

t) 5:
(-5) + 9 . 2 = 
u) 36 : (-6) + 5 . 4 =








&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;PROVA I DE MATEMÁTICA – (CONSULTA)

PROFESSORA ADRIANA S. ENGROFF

NOME DO ALUNO: _____________________________ SÉRIE/ANO: _____

DATA: ___/____/2014

<!--[if !supportLists]-->1-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<!--[endif]-->Observe as afirmações abaixo e diga se são verdadeiras ou falsas:

(&nbsp;&nbsp;&nbsp;&nbsp; ) Se marcar
10 graus abaixo de zero, essa temperatura é representada por -10 

(&nbsp;&nbsp;&nbsp;&nbsp; ) Quando
estamos abaixo do nível do mar, estamos numa depressão (altitude positiva).

(&nbsp;&nbsp;&nbsp;&nbsp; ) Os números inteiros são representados
pela letra Z.

(&nbsp;&nbsp;&nbsp;&nbsp; ) O número + 7 é igual ao número – 7.

(&nbsp;&nbsp;&nbsp;&nbsp; ) O número zero não é positivo&nbsp; nem negativo.

(&nbsp;&nbsp;&nbsp;&nbsp; ) O antecessor de -6 na reta numérica é o
número -5.

(&nbsp;&nbsp;&nbsp;&nbsp; ) O número + 7 é igual ao número 7.

(&nbsp;&nbsp;&nbsp;&nbsp; ) O antecessor de zero na reta numérica é
o número -1.

(&nbsp;&nbsp;&nbsp;&nbsp; ) O sucessor de +8 na reta numérica é o
número + 9.

(&nbsp;&nbsp;&nbsp;&nbsp; ) O número zero é menor que o número -20.

<!--[if !supportLists]-->2-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<!--[endif]-->Relacione as colunas de acordo com o seu
resultado correto:

 

  
  
<!--[if !supportLists]-->a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->(-6) + 0 = 

<!--[if !supportLists]-->b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->&nbsp;+3 + (-5) = 

<!--[if !supportLists]-->c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->(+2) + (-2) =

<!--[if !supportLists]-->d)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->&nbsp;(-4) +10 = 

<!--[if !supportLists]-->e)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->&nbsp;-7 + (-9) =

<!--[if !supportLists]-->f)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->&nbsp;+4 + (-12) =

<!--[if !supportLists]-->g)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->&nbsp;+6 + (-4) =&nbsp;

  
  
(&nbsp;&nbsp;&nbsp;&nbsp;
  )+6

(&nbsp;&nbsp;&nbsp;&nbsp;
  ) -8 

(&nbsp;&nbsp;&nbsp;&nbsp;
  ) +2

(&nbsp;&nbsp;&nbsp;&nbsp;
  ) -6 

(&nbsp;&nbsp;&nbsp;&nbsp;
  ) 0

(&nbsp;&nbsp;&nbsp;&nbsp;
  ) -16

(&nbsp;&nbsp;&nbsp;&nbsp;
  ) -2

 


<!--[if !supportLists]-->3-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<!--[endif]-->Resolva as sentenças:








<!--[if !supportLists]-->a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->+5+3+2=
__________

<!--[if !supportLists]-->b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->-5+3+2=__________

<!--[if !supportLists]-->c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->-5-3+2=__________

<!--[if !supportLists]-->d)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->-5-3-2
=__________

<!--[if !supportLists]-->e)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->-5+3-2=__________

<!--[if !supportLists]-->f)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->+5-3+2=__________

<!--[if !supportLists]-->g)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->+5-3-2=__________

<!--[if !supportLists]-->h)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->+5+3-2=__________








<!--[if !supportLists]-->4-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<!--[endif]-->O resultado de 15 – 8 + 4 – 4 + 8 – 15, é zero?

(&nbsp;&nbsp;&nbsp;&nbsp;
) SIM&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Porque?
______________________________________________

(&nbsp;&nbsp;&nbsp;&nbsp;
) NÂO&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; _____________________________________________________

<!--[if !supportLists]-->5-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<!--[endif]-->Em cada item, a letra representa um número
inteiro. Qual é esse número?








<!--[if !supportLists]-->a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->a.
2 = -8 ___________

<!--[if !supportLists]-->b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->(+4).b
= +12 _________

<!--[if !supportLists]-->c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->5
. c = -20 __________

<!--[if !supportLists]-->d)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->d.
(-3) = +9 __________

<!--[if !supportLists]-->e)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->x.
(-10) = 0 __________

<!--[if !supportLists]-->f)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->a:
2 = -8 ____________

<!--[if !supportLists]-->g)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->b:
(-8) = +9 ____________

<!--[if !supportLists]-->h)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->x:
(+2) = +5 ____________

<!--[if !supportLists]-->i)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<!--[endif]-->y : (-10) = -10________








<!--[if !supportLists]-->6-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<!--[endif]-->Responda:








<!--[if !supportLists]-->a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->A
metade de – 100? _________

<!--[if !supportLists]-->b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->A
metade de +18? _________

<!--[if !supportLists]-->c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->A
terça parte de – 30? ________

<!--[if !supportLists]-->d)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->A
terça parte de +90? ________

<!--[if !supportLists]-->e)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->A
quarta parte de -100? ________

<!--[if !supportLists]-->f)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->A
quarta parte de 100? _________








<!--[if !supportLists]-->7-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<!--[endif]-->Encontre o resultado das expressões numéricas
abaixo:








<!--[if !supportLists]-->a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<!--[endif]-->8 + ( +7 -1 ) – ( -3 + 1 – 5 ) =

<!--[if !supportLists]-->b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<!--[endif]-->10 + [ -3 + 1 - ( -2 + 6 ) ] =

<!--[if !supportLists]-->c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<!--[endif]-->-17 + { +5 – [ +2 - ( -6 +9 ) ]} =






















PROVA II DE MATEMÁTICA – (CONSULTA)

PROFESSORA ADRIANA S. ENGROFF

NOME DO ALUNO: _____________________________ SÉRIE/ANO: _____

DATA: ___/____/2014

1 – Um jogador ganha R$ 3000,00 em
uma aposta e perde R$ 3500,00 em outra. O resultado final das duas apostas pode
ser representado por quanto?



2 – Durante uma experiência, a
temperatura foi medida e estava marcando – 3ºC. O professor pediu para baixar
5ºC essa temperatura. Qual será a nova temperatura registrada?






<!--[if !supportLists]-->a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->Qual é o menor?

<!--[if !supportLists]-->b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->Qual é o maior?

<!--[if !supportLists]-->c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->Coloque em ordem crescente.





13 – José depositou em sua conta
bancária as importâncias de R$ 300,00 e R$ 200,00. Posteriormente, retirou R$
350,00 e R$ 250,00. O saldo de sua conta corrente representado com números
relativos é de quanto?



14 – Um pessoa tem R$ 500,00 na sua
conta bancária e faz, sucessivamente, as seguintes operações bancárias:



<!--[if !supportLists]-->·&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<!--[endif]-->Coloca R$
200,00

<!--[if !supportLists]-->·&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<!--[endif]-->Retira R$
900,00

<!--[if !supportLists]-->·&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<!--[endif]-->Coloca R$
600,00

<!--[if !supportLists]-->·&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<!--[endif]-->Retira R$
700,00



Qual é o seu saldo final?



15 – Qual é o valor da expressão <!--[if gte msEquation 12]><i
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 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
 Arial'>30:10+5?<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]><v:shape
 id="_x0000_i1025" type="#_x0000_t75" style='width:78pt;height:15pt'>
 <v:imagedata src="file:///C:\Users\Adriana\AppData\Local\Temp\msohtmlclip1\01\clip_image065.png"
  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->



16 – Qual é o resultado de <!--[if gte msEquation 12]><i
 style='mso-bidi-font-style:normal'><span style='mso-fareast-font-family:"Times New Roman";
 mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:Arial'>-<i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
 Arial'>1.<span style='font-family:"Cambria Math","serif";
   mso-ascii-font-family:"Cambria Math";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:"Cambria Math";
   mso-bidi-font-family:Arial;font-style:italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:
   Arial'>-<span
   style='font-family:"Cambria Math","serif";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri;
   mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>2<i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
 Arial'>.<span style='font-family:"Cambria Math","serif";
   mso-ascii-font-family:"Cambria Math";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:"Cambria Math";
   mso-bidi-font-family:Arial;font-style:italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:
   Arial'>-<span
   style='font-family:"Cambria Math","serif";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri;
   mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>3<i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
 Arial'>.<span style='font-family:"Cambria Math","serif";
   mso-ascii-font-family:"Cambria Math";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:"Cambria Math";
   mso-bidi-font-family:Arial;font-style:italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:
   Arial'>-<span
   style='font-family:"Cambria Math","serif";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri;
   mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>4<i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
 Arial'>?<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]><v:shape
 id="_x0000_i1025" type="#_x0000_t75" style='width:101.25pt;height:15pt'>
 <v:imagedata src="file:///C:\Users\Adriana\AppData\Local\Temp\msohtmlclip1\01\clip_image067.png"
  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->



17 – Se <!--[if gte msEquation 12]><span
   style='font-family:"Cambria Math","serif";mso-ascii-font-family:"Cambria Math";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-hansi-font-family:"Cambria Math";mso-bidi-font-family:Arial;font-style:
   italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-bidi-font-family:Arial'>m<i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
 Arial'>.<span style='font-family:"Cambria Math","serif";
   mso-ascii-font-family:"Cambria Math";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:"Cambria Math";
   mso-bidi-font-family:Arial;font-style:italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:
   Arial'>-<span
   style='font-family:"Cambria Math","serif";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri;
   mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>7<i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
 Arial'>=21<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]><v:shape
 id="_x0000_i1025" type="#_x0000_t75" style='width:72.75pt;height:15pt'>
 <v:imagedata src="file:///C:\Users\Adriana\AppData\Local\Temp\msohtmlclip1\01\clip_image069.png"
  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->, então qual é o valor de <!--[if gte msEquation 12]><i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>m<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>?<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]><v:shape
 id="_x0000_i1025" type="#_x0000_t75" style='width:14.25pt;height:15pt'>
 <v:imagedata src="file:///C:\Users\Adriana\AppData\Local\Temp\msohtmlclip1\01\clip_image071.png"
  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->



18 – Qual é o resultado de <!--[if gte msEquation 12]><span
   style='font-family:"Cambria Math","serif";mso-ascii-font-family:"Cambria Math";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-hansi-font-family:"Cambria Math";mso-bidi-font-family:Arial;font-style:
   italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
   Arial'>+<span
   style='font-family:"Cambria Math","serif";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:Arial'>a<i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
 Arial'>.<span style='font-family:"Cambria Math","serif";
   mso-ascii-font-family:"Cambria Math";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:"Cambria Math";
   mso-bidi-font-family:Arial;font-style:italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:
   Arial'>-<span
   style='font-family:"Cambria Math","serif";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:Arial'>b<i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
 Arial'>.0.<span style='font-family:"Cambria Math","serif";
   mso-ascii-font-family:"Cambria Math";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:"Cambria Math";
   mso-bidi-font-family:Arial;font-style:italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:
   Arial'>-<span
   style='font-family:"Cambria Math","serif";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:Arial'>c<i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
 Arial'>?<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]><v:shape
 id="_x0000_i1025" type="#_x0000_t75" style='width:93pt;height:15pt'>
 <v:imagedata src="file:///C:\Users\Adriana\AppData\Local\Temp\msohtmlclip1\01\clip_image073.png"
  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->



19 – Qual é o resultado de <!--[if gte msEquation 12]><i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
 Arial'>2.<span style='font-family:"Cambria Math","serif";
   mso-ascii-font-family:"Cambria Math";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:"Cambria Math";
   mso-bidi-font-family:Arial;font-style:italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:
   Arial'>-<span
   style='font-family:"Cambria Math","serif";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri;
   mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>5<i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
 Arial'>.<span style='font-family:"Cambria Math","serif";
   mso-ascii-font-family:"Cambria Math";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:"Cambria Math";
   mso-bidi-font-family:Arial;font-style:italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:
   Arial'>-<span
   style='font-family:"Cambria Math","serif";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri;
   mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>10<i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
 Arial'>.8.<span style='font-family:"Cambria Math","serif";
   mso-ascii-font-family:"Cambria Math";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:"Cambria Math";
   mso-bidi-font-family:Arial;font-style:italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:
   Arial'>-<span
   style='font-family:"Cambria Math","serif";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri;
   mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>6<i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
 Arial'>?<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]><v:shape
 id="_x0000_i1025" type="#_x0000_t75" style='width:109.5pt;height:15pt'>
 <v:imagedata src="file:///C:\Users\Adriana\AppData\Local\Temp\msohtmlclip1\01\clip_image075.png"
  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->



20- Qual é o sinal de um produto:



<!--[if !supportLists]-->a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->Que tem dois números positivos?

<!--[if !supportLists]-->b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->Que tem dois números negativos?

<!--[if !supportLists]-->c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->Que tem um número positivo e outro negativo?



21- Calcule:



<!--[if !supportLists]-->a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]--><!--[if gte msEquation 12]><span
   style='font-family:"Cambria Math","serif";mso-ascii-font-family:"Cambria Math";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-hansi-font-family:"Cambria Math";mso-bidi-font-family:Arial;font-style:
   italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:
   Arial'>-<span
   style='font-family:"Cambria Math","serif";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri;
   mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>5+0<i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
 Arial'>.<span style='font-family:"Cambria Math","serif";
   mso-ascii-font-family:"Cambria Math";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:"Cambria Math";
   mso-bidi-font-family:Arial;font-style:italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:
   Arial'>-<span
   style='font-family:"Cambria Math","serif";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri;
   mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>4<i
   style='mso-bidi-font-style:normal'><span style='mso-ascii-font-family:"Cambria Math";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-bidi-font-family:Arial'>-<i style='mso-bidi-font-style:
   normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
   Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>7<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]><v:shape
 id="_x0000_i1025" type="#_x0000_t75" style='width:89.25pt;height:15pt'>
 <v:imagedata src="file:///C:\Users\Adriana\AppData\Local\Temp\msohtmlclip1\01\clip_image077.png"
  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->

<!--[if !supportLists]-->b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]--><!--[if gte msEquation 12]><span
   style='font-family:"Cambria Math","serif";mso-ascii-font-family:"Cambria Math";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-hansi-font-family:"Cambria Math";mso-bidi-font-family:Arial;font-style:
   italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
   Arial'>+7<span
   style='mso-ascii-font-family:"Cambria Math";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:Arial'>-<i
   style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
   Arial'>2<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>.<span
   style='font-family:"Cambria Math","serif";mso-ascii-font-family:"Cambria Math";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-hansi-font-family:"Cambria Math";mso-bidi-font-family:Arial;font-style:
   italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
   Arial'>+1<span
   style='mso-ascii-font-family:"Cambria Math";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:Arial'>-<i
   style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
   Arial'>4<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]><v:shape
 id="_x0000_i1025" type="#_x0000_t75" style='width:89.25pt;height:15pt'>
 <v:imagedata src="file:///C:\Users\Adriana\AppData\Local\Temp\msohtmlclip1\01\clip_image079.png"
  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->

<!--[if !supportLists]-->c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]--><!--[if gte msEquation 12]><span
   style='font-family:"Cambria Math","serif";mso-ascii-font-family:"Cambria Math";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-hansi-font-family:"Cambria Math";mso-bidi-font-family:Arial;font-style:
   italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
   Arial'>0<span
   style='mso-ascii-font-family:"Cambria Math";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:Arial'>-<i
   style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
   Arial'>4<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>.<span
   style='font-family:"Cambria Math","serif";mso-ascii-font-family:"Cambria Math";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-hansi-font-family:"Cambria Math";mso-bidi-font-family:Arial;font-style:
   italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:
   Arial'>-<span
   style='font-family:"Cambria Math","serif";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri;
   mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>2+6<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]><v:shape
 id="_x0000_i1025" type="#_x0000_t75" style='width:81pt;height:15pt'>
 <v:imagedata src="file:///C:\Users\Adriana\AppData\Local\Temp\msohtmlclip1\01\clip_image081.png"
  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->

<!--[if !supportLists]-->d)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]--><!--[if gte msEquation 12]><span
   style='font-family:"Cambria Math","serif";mso-ascii-font-family:"Cambria Math";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-hansi-font-family:"Cambria Math";mso-bidi-font-family:Arial;font-style:
   italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
   Arial'>+1+4<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>.<span
   style='font-family:"Cambria Math","serif";mso-ascii-font-family:"Cambria Math";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-hansi-font-family:"Cambria Math";mso-bidi-font-family:Arial;font-style:
   italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:
   Arial'>-<span
   style='font-family:"Cambria Math","serif";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri;
   mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>6<i
   style='mso-bidi-font-style:normal'><span style='mso-ascii-font-family:"Cambria Math";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-bidi-font-family:Arial'>-<i style='mso-bidi-font-style:
   normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
   Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>7<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]><v:shape
 id="_x0000_i1025" type="#_x0000_t75" style='width:89.25pt;height:15pt'>
 <v:imagedata src="file:///C:\Users\Adriana\AppData\Local\Temp\msohtmlclip1\01\clip_image083.png"
  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->

<!--[if !supportLists]-->e)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]--><!--[if gte msEquation 12]><span
   style='font-family:"Cambria Math","serif";mso-ascii-font-family:"Cambria Math";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-hansi-font-family:"Cambria Math";mso-bidi-font-family:Arial;font-style:
   italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:
   Arial'>-<span
   style='font-family:"Cambria Math","serif";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri;
   mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>3+5<i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
 Arial'>.<span style='font-family:"Cambria Math","serif";
   mso-ascii-font-family:"Cambria Math";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:"Cambria Math";
   mso-bidi-font-family:Arial;font-style:italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:
   Arial'>-<span
   style='font-family:"Cambria Math","serif";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri;
   mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>4+1<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]><v:shape
 id="_x0000_i1025" type="#_x0000_t75" style='width:89.25pt;height:15pt'>
 <v:imagedata src="file:///C:\Users\Adriana\AppData\Local\Temp\msohtmlclip1\01\clip_image085.png"
  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->

<!--[if !supportLists]-->f)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]--><!--[if gte msEquation 12]><span
   style='font-family:"Cambria Math","serif";mso-ascii-font-family:"Cambria Math";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-hansi-font-family:"Cambria Math";mso-bidi-font-family:Arial;font-style:
   italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:
   Arial'>-<span
   style='font-family:"Cambria Math","serif";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri;
   mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>1<i
   style='mso-bidi-font-style:normal'><span style='mso-ascii-font-family:"Cambria Math";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-bidi-font-family:Arial'>-<i style='mso-bidi-font-style:
   normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
   Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>6<i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
 Arial'>.<span style='font-family:"Cambria Math","serif";
   mso-ascii-font-family:"Cambria Math";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:"Cambria Math";
   mso-bidi-font-family:Arial;font-style:italic;mso-bidi-font-style:normal'><i
   style='mso-bidi-font-style:normal'><span style='mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:
   Arial'>-<span
   style='font-family:"Cambria Math","serif";mso-fareast-font-family:"Times New Roman";
   mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:Calibri;
   mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>8<i
   style='mso-bidi-font-style:normal'><span style='mso-ascii-font-family:"Cambria Math";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
   mso-bidi-font-family:Arial'>-<i style='mso-bidi-font-style:
   normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
   "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
   Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>3<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]><v:shape
 id="_x0000_i1025" type="#_x0000_t75" style='width:89.25pt;height:15pt'>
 <v:imagedata src="file:///C:\Users\Adriana\AppData\Local\Temp\msohtmlclip1\01\clip_image087.png"
  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->



22 – Calcule o valor de x.y nos
seguintes casos:



<!--[if !supportLists]-->a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]--><!--[if gte msEquation 12]><i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>x<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>=+4 <i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>e<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'> <i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>y<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>=+5<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]><v:shape
 id="_x0000_i1025" type="#_x0000_t75" style='width:80.25pt;height:15pt'>
 <v:imagedata src="file:///C:\Users\Adriana\AppData\Local\Temp\msohtmlclip1\01\clip_image089.png"
  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->

<!--[if !supportLists]-->b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]--><!--[if gte msEquation 12]><i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>x<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>=<i
 style='mso-bidi-font-style:normal'><span style='mso-ascii-font-family:"Cambria Math";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>-<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>5 <i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>e<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'> <i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>y<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>=+3<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]><v:shape
 id="_x0000_i1025" type="#_x0000_t75" style='width:80.25pt;height:15pt'>
 <v:imagedata src="file:///C:\Users\Adriana\AppData\Local\Temp\msohtmlclip1\01\clip_image091.png"
  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->

<!--[if !supportLists]-->c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]--><!--[if gte msEquation 12]><i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>x<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>=<i
 style='mso-bidi-font-style:normal'><span style='mso-ascii-font-family:"Cambria Math";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>-<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>6 <i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>e<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'> <i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>y<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>=<i
 style='mso-bidi-font-style:normal'><span style='mso-ascii-font-family:"Cambria Math";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>-<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>7<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]><v:shape
 id="_x0000_i1025" type="#_x0000_t75" style='width:80.25pt;height:15pt'>
 <v:imagedata src="file:///C:\Users\Adriana\AppData\Local\Temp\msohtmlclip1\01\clip_image093.png"
  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->

<!--[if !supportLists]-->d)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]--><!--[if gte msEquation 12]><i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>x<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>=18 <i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>e<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'> <i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>y<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>=<i
 style='mso-bidi-font-style:normal'><span style='mso-ascii-font-family:"Cambria Math";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>-<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>9<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]><v:shape
 id="_x0000_i1025" type="#_x0000_t75" style='width:78pt;height:15pt'>
 <v:imagedata src="file:///C:\Users\Adriana\AppData\Local\Temp\msohtmlclip1\01\clip_image095.png"
  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->



23 – Obtenha o valor da expressão <!--[if gte msEquation 12]><i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
 Arial'>3<span
 style='font-family:"Cambria Math","serif";mso-fareast-font-family:"Times New Roman";
 mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:Arial'>x<i
 style='mso-bidi-font-style:normal'><span style='mso-fareast-font-family:"Times New Roman";
 mso-fareast-theme-font:minor-fareast;mso-bidi-font-family:Arial'>-<i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
 Arial'>1<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]><v:shape
 id="_x0000_i1025" type="#_x0000_t75" style='width:31.5pt;height:15pt'>
 <v:imagedata src="file:///C:\Users\Adriana\AppData\Local\Temp\msohtmlclip1\01\clip_image097.png"
  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->&nbsp;para cada valor de <!--[if gte msEquation 12]><i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>x<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]><v:shape
 id="_x0000_i1025" type="#_x0000_t75" style='width:6pt;height:15pt'>
 <v:imagedata src="file:///C:\Users\Adriana\AppData\Local\Temp\msohtmlclip1\01\clip_image099.png"
  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->&nbsp;dado:



<!--[if !supportLists]-->a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]--><!--[if gte msEquation 12]><i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>x<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
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<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->

<!--[if !supportLists]-->b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]--><!--[if gte msEquation 12]><i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
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 style='mso-bidi-font-style:normal'><span style='mso-ascii-font-family:"Cambria Math";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>-<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
 "Times New Roman";mso-fareast-theme-font:minor-fareast;mso-hansi-font-family:
 Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:Arial'>30<![endif]--><!--[if !msEquation]--><!--[if gte vml 1]><v:shape
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  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->

<!--[if !supportLists]-->c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]--><!--[if gte msEquation 12]><i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
 mso-bidi-font-family:Arial'>x<i style='mso-bidi-font-style:
 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
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  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->



24 – Qual é o valor da expressão:



<!--[if !supportLists]-->a)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]-->&nbsp;<!--[if gte msEquation 12]><i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
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 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
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 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
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 normal'><span style='font-family:"Cambria Math","serif";mso-fareast-font-family:
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 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
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  o:title="" chromakey="white"/>
<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->

<!--[if !supportLists]-->b)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]--><!--[if gte msEquation 12]><i
 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
 mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
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 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
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 mso-hansi-font-family:Calibri;mso-hansi-theme-font:minor-latin;mso-bidi-font-family:
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 style='font-family:"Cambria Math","serif";mso-fareast-font-family:"Times New Roman";
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 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
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<![endif]--><!--[if !vml]--><!--[endif]--><!--[endif]-->

<!--[if !supportLists]-->c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <!--[endif]--><!--[if gte msEquation 12]><span
   style='font-family:"Cambria Math","serif";mso-ascii-font-family:"Cambria Math";
   mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
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 style='mso-bidi-font-style:normal'><span style='font-family:"Cambria Math","serif";
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