EXPRESSÕES NUMÉRICAS PARA O 4º e 5º ANO
Autor: PROF. MARISTELA REZENDE DE ARAÚJO | Publicado: 2014-09-24T18:02:00-07:00

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&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;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; EXERCÍCIOS

1) Calcule as expressões

a) 3x75+3x25 = (R:300)
b) 5x97+5x3 = (R:500 )
c) 4x101+4x99 = (R:800)
d) 20x47+80x47 = (R:4700)
e) 12+16:8x3-5 = (R:13)
f) 100-6x7+8:2 = (R:62)
g) 64:8+5x5-3 = (R: 30)
h) 1+3+5x7-9:3 = (R:36)

2) Calcule o valor das expressões:

a) 7+15:3 = (R:12)
b) 4x5+1 = (R:21)
c) 10:2+8 = (R:13) 
d) 32+12:2 = (R:38)
e) 20:10+10 = (R:12)
f)7x3-2x5 = (R:11)
g)40-2x4+5 = (R:37)
h)4x3+10:2 = (R:17)
i)50-16:8+7 = (R:55)
j)32:4:2:2 = (R:2) 

3) Calcule o valor das expressões

a) (13+2)x3+5 = (R:50)
b)(7+2)x(3-1) = (R:18)
c)(4+2x5)-3 = (R:11)
d) 20-(15+6:3) = (R:3)
e)15+[6+(8-4:2)] = (R:27)
f)40-[3+(10-2):2] = (R:33)
g)[30+2x(5-3)]x2-10 = (R:58)
h) 10+[4+(7x3+1)]-3 = (R:33)

4) Calcule o valor das expressões

a) (3+2)x(5-1)+4 = (R:24)
b) 82-8x7:(4-1x3) = (R:26)
c) 25-[10-(2x3+1)] = (R:22)
d) 70-[12+(5x2-1)+6] = (R:43)
e)8:2+[15-(4x2+1)] = (R:10)
f)9+[4+2x(6-4)+(2+5)]-8 = (R:16)
g) 50+{10-2x[(6+4:2)-(10-3)]} = (R:58)
h)180:{10+2x[20-45:(13-2x5)]} = (R:9)&nbsp;

5) Calcule o valor das expressões:

a) 70:7-1= (R:9)
b) 20+3x2= (R:26)
c) 30+10:10 = (R:31) 
d) 150-7x12= (R:66)
e) 48:16+20:4 = (R:8)
f) 10-8:2+3 = (R:9)
g) 30:5-1+2x3 = (R:11)

6) Calcule as expressões:

a) (3+4)x(9-8) = (R:7)
b) (20+8):(3+4) = (R:4) 
c) 15+8x(2+3) = (R:55)
d) (5+3x2)-1= (R:10)
e) 25+(8:2+1)-1= (R:29)
f) 15+[5x(8-6:2)] = (R:40) 
g) 50-[13-(10-2):2] = (R:41)
h) [40+2x(7-5)]x2-20 = (R:68)

7) Calcule o valor das expressões:

a) 16+[10-(18:3+2)+5] = (R: 23)
b) 25-[12-(3x2+1)] = (R: 20)
c) 90-[25+(5x2-1)+3] = ( R: 53)
d) 45+[(8x5-10:2)+(18:6-2)] = (R: 81)
e) 50-2x{7+8:2-[9-3x(5-4)]} = (R: 40)
f) 100-3x{5+8:2-[3x(7-6)]} = (R: 82)

8) Determine o valor de cada expressão

a) 1000 - [(2 . 4 - 6) + ( 2 + 6 . 4)] = (R: 972)
b) 60 + 2 . {[ 4 . ( 6 + 2 ) - 10 ] + 12} = ( R: 128 )
c) [( 4 + 16 . 2) . 5 - 10] . 100 = (R: 17.000)
d) { 10 + [ 5 . ( 4 + 2 . 5) - 8] . 2 } - 100 = ( R:
34)
e) 80 - 5 . ( 28 - 6 . 4 ) + 6 - 3 . 4 = (R: 54)

9) Calcule as expressões numéricas:

a) 4 . ( 10 + 20 + 15 + 30) = (R: 300)
b) (10 . 6 + 12 . 4 + 5 . 8 ) - 40 = (R: 108) 
c) [ 6 . ( 3 . 4 - 2 . 5) - 4 ] + 3 . ( 4 - 2) - ( 10 : 2 ) = (R: 9)
d) 67 + { 50 . [ 70 : ( 27 + 8 ) + 18 : 2 ] + 21 } = (R:638)
e) [ 30 . ( 9 - 6)] + { 30 : ( 9 + 6 ) ] = (R: 92)
f) 58 - [ 20 - ( 3 . 4 - 2) : 5 ] = (R: 40)
g) 40 + 2 . [ 20 - ( 6 + 4 . 7 ) : 2 ] = ( R: 46)

h)15+[(3x6-2)-(10-6:2)+1]= ( R:25)
i) 50-{40-3x[5-(10-7)]}= (R:16)

10) Calcule o valor das expressões

a) (12 + 2 . 5) - 8 = (R: 14)
b) 25 - ( 15 + 6 : 3) = (R: 8)
c) 25 +[7 + ( 8 - 4 :2)] = (R: 38)
d) 60 - [8 + ( 10 - 2 ) : 2] = (R: 46)
e) 80 - [ 22 + ( 5 . 2 - 1 ) + 6] = (R: 43)
f) 14 : 2 + [ 13 - ( 4 . 2 + 1 ) ] = (R: 11)
g) [ 30 + 2 x ( 5 – 3 ) ] x 2 – 10
h) 20 : 10 + 10
i) 10 + [ 4 + ( 7 x 3 + 1 ) ] – 3

11) Resolva as expressões numéricas:

a) 8 – ( 1 + 3) = (R: 4)
b) 7x 3 – 2 x 5 = (R: 11)
c) ( 13 – 7 ) + 8 – 1 = (R : 13)
d)4 x 3 + 10 : 2 = (R: 17)
e) 15 – ( 3 + 2 ) – 6 = (R: 4)
f) 40 – 2 x 4 + 5 = (R: 37)
g) ( 10 – 4 ) – ( 9 – 8 ) + 3 = (R: 8)
h) 50 – 16 : 8 + 7 = ( R: 55)
i) 50 – [37 – ( 15 – 8 ) ] = (R: 20)
j) 32 : 4 : 2 : 2 = (R: 2)
l) 28 + [ 50 – ( 24 – 2 ) – 10 ] = (R: 46)
m) ( 13 + 2) x 3 + 5 = (R: 50)
n) 20 + [ 13 + ( 10 – 6 ) + 4 ] = (R : 41)
o) ( 7 + 2 ) x ( 3 – 1 ) = (R: 18)
p) 52 – { 12 + [ 15 – ( 8 – 4 )]}
q) ( 4 + 2 x 5 ) – 3
r) 7 + 15 : 3
s) 20 – ( 15 + 6 : 3)
t) 4 x 5 + 1
u) 15 + [ 6 + ( 8 – 4 : 2 )]
v) 10 : 2 + 8
x) 40 – [ 3 – (10 – 2 ) : 2 ]
z) 32 + 12 : 2