math-eval/TAL-SCQ5K huggingface dataset:
Problem: What is another way of writing $a + a + a + a$ ? 
Options:
aoVal: A
content: $a^{\^{4}}$ 
aoVal: B
content: $$4a$$ 
aoVal: C
content: $$a4$$ 
aoVal: D
content: $$aaaa$$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution->Algebraic Expressions
Problem: MIke has $2$ shirts, $5$ pens, $4$ pairs of trousers, $2$ coats, $5$ apples, $3$ hammers and $1$ bottle. How many pieces of clothes does Mike have? 
Options:
aoVal: A
content: $$3$$ 
aoVal: B
content: $$5$$ 
aoVal: C
content: $$8$$ 
aoVal: D
content: $$15$$ 
aoVal: E
content: $$22$$ 
Answer: C
Analysis: N/A 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Find the equation of the line using the following information:  slope=$-32$, $y$-intercept=$56$. 
Options:
aoVal: A
content: $y=32x-56$ 
aoVal: B
content: $y=56+32x$ 
aoVal: C
content: $y=56x+32$ 
aoVal: D
content: $y=-32x+56$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Linear Equations with one Variable
Source: 其它
Problem: What is the next number in the pattern below?  $$4, 8, 8, 7, 12, 6, 16, 5, $$~\uline{~~~~~~~~~~}~ 
Options:
aoVal: A
content: $$32$$ 
aoVal: B
content: $$21$$ 
aoVal: C
content: $$20$$ 
aoVal: D
content: $$4$$ 
aoVal: E
content: None of the above 
Answer: C
Analysis: $$N.A$$ 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables->Patterns in Number Sequences
Source: 其它
Problem: What does the digit $$9$$ in $$7.69$$ stand for? 
Options:
aoVal: A
content: $$9$$ tens 
aoVal: B
content: $$9$$ ones 
aoVal: C
content: $$9$$ tenths 
aoVal: D
content: $$9$$ hundredths 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Basic Understanding of Decimals
Source: 其它
Problem: Calculate in a vertical form: $$36\times14=$$~\uline{~~~~~~~~~~}~． 
Options:
aoVal: A
content: $$54$$ 
aoVal: B
content: $$504$$ 
aoVal: C
content: $$444$$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Addition and Subtraction ->Addition of Whole Numbers->Addition in Vertical Form
Problem: What fraction is half-way between $$2$$ and $$2.5$$? 
Options:
aoVal: A
content: $$\frac92$$ 
aoVal: B
content: $$\frac94$$ 
aoVal: C
content: $$\frac52$$ 
aoVal: D
content: $$\frac34$$ 
Answer: B
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Fractions->Operations of Fractions->Mixed Four Operations of Fractions
Problem: If BOB is $19$ and JANE is $30$, who is $10$ less than LIZ? 
Options:
aoVal: A
content: $$ $$AMY$$ $$ 
aoVal: B
content: $$ $$KATE$$ $$ 
aoVal: C
content: $$ $$JIM$$ $$ 
aoVal: D
content: $$ $$JOE$$ $$ 
aoVal: E
content: $$ $$SAM$$ $$ 
Answer: B
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution->Using a Letter to Represent an Unknown Number
Problem: Marko has 9 pieces of candy and Tomo has 17 pieces of candy. How many pieces of candy does Tomo need to give to Marko so that each boy has the same number of pieces of candy? 
Options:
aoVal: A
content: $$2$$ 
aoVal: B
content: $$3$$ 
aoVal: C
content: $$4$$ 
aoVal: D
content: $$5$$ 
aoVal: E
content: $$6$$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Inequalities->Solving Inequalities
Source: 其它
Problem: Which fraction is greater than $$\frac{2}{3}$$? 
Options:
aoVal: A
content: $$\frac{5}{6}$$ 
aoVal: B
content: $$\frac{1}{2}$$ 
aoVal: C
content: $$\frac{4}{9}$$ 
aoVal: D
content: $$\frac{5}{12}$$ 
Answer: A
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Fractions
Overseas In-curriculum->Knowledge Point->Knowing Numbers->Comparing and Ordering->Comparing and Ordering Fractions
Problem: Kevin writes a sequence starts with the number $-2$ and goes up by $8$  For example, $-2, 6, 14\dots$  What is the first number that Kevin arrives at that is greater than $100$? 
Options:
aoVal: A
content: $$108$$ 
aoVal: B
content: $$112$$ 
aoVal: C
content: $$106$$ 
aoVal: D
content: $$102$$ 
aoVal: E
content: $$104$$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Which Law is used in the following calculation: $$2.76+10+3.75=10+(2.76+3.75)$$? 
Options:
aoVal: A
content: The Commutative Law of Addition 
aoVal: B
content: The Associative Law of Addition 
aoVal: C
content: Both 
aoVal: D
content: None 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Addition and Subtraction of Decimals->Addition of Decimals
Source: 其它
Problem: Two college roommates have each committed to donating to charity each week for the next year. The roommates\textquotesingle{} weekly incomes are independent of each other. Suppose the amount donated in a week by one roommate is approximately normal with mean $\textbackslash$$30 and standard deviation $\textbackslash$$10, and the amount donated  in a week by the other roommate is approximately normal with mean $\textbackslash$$60 and standard deviation $\textbackslash$$20. Which of the following is closest to the expected number of weeks in a 52-week year that their combined donation will exceed $\textbackslash$$120? 
Options:
aoVal: A
content: 0; the combined donation never exceeds $\textbackslash$$120 in a week 
aoVal: B
content: 1 week 
aoVal: C
content: 3 weeks 
aoVal: D
content: 5 weeks 
aoVal: E
content: 8 weeks 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Which of these is the smallest? 
Options:
aoVal: A
content: $$0.0701$$ 
aoVal: B
content: $$0.701$$ 
aoVal: C
content: $$0.071$$ 
aoVal: D
content: $$0.07$$ 
aoVal: E
content: $$0.0777$$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Basic Understanding of Decimals
Problem: Which of the following statements is false? 
Options:
aoVal: A
content: $2.5\textless\sqrt{15}-1\textless3$ 
aoVal: B
content: $6\textless\sqrt{19}+2\textless6.5$ 
aoVal: C
content: $2.5\textless\sqrt{21}-2\textless3$ 
aoVal: D
content: $6.5\textless\sqrt{30}+1\textless7$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Comparing, Ordering and Estimating
Source: 其它
Problem: (2)~$\dfrac{5}{12}\times\dfrac{2}{3}=$ 
Options:
aoVal: A
content: $\dfrac{10}{15}$ 
aoVal: B
content: $\dfrac{5}{18}$ 
aoVal: C
content: $\dfrac{10}{36}$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Fractions->Operations of Fractions->Multiplication of Fractions
Source: 其它
Problem: Is 3 a rational number? 
Options:
aoVal: A
content: Yes 
aoVal: B
content: No 
aoVal: C
content: Not sure 
Answer: A
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers
Source: 其它
Problem: Which one of these fractions is not equivalent to~$\dfrac{2}{5}$? 
Options:
aoVal: A
content: $\dfrac{8}{20}$ 
aoVal: B
content: $\dfrac{15}{50}$ 
aoVal: C
content: $\dfrac{10}{25}$ 
aoVal: D
content: $\dfrac{16}{40}$ 
Answer: B
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Fractions->Basic Understanding of Fractions->Using Common Factors to Simplify Fractions
Problem: 7 Nanyang Primary School, Preliminary Examination, Primary 6, Question \#15)  Geena had 8y paper clips. She used 4 paper clips and gave the rest to her friends, Megan and Bryan. Megan  received twice as many paper clips as Bryan. Find the number of paper clips Bryan received in terms of y. (  ). 
Options:
aoVal: A
content: \[  \frac{8y-4}{2}\] 
aoVal: B
content: \[  \frac{8y-4}{3}\] 
aoVal: C
content: \[  \frac{16y-8}{2}\] 
aoVal: D
content: \[  \frac{16y-8}{3}\] 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution->Algebraic Expressions
Source: 其它
Problem: Garcia is currently spending his entire lunch budget on 3 sodas and 4 hot dogs. At his current level of consumption, Garcia\textquotesingle s marginal utility for sodas is 5 utils and his marginal utility for hot dogs is 10 utils. In order to maximize his total utility, Garcia should 
Options:
aoVal: A
content: consume more sodas and fewer hot dogs regardless of the prices 
aoVal: B
content: consume more hot dogs and fewer sodas regardless of the prices 
aoVal: C
content: maintain his current level of consumption of sodas and hot dogs regardless of the prices 
aoVal: D
content: maintain his current level of consumption if the price of a soda is 1 dollar and the price of a hot dog is 2 dollars 
aoVal: E
content: maintain his current level of consumption if the price of a soda is 2 dolalrs and the price of a hot dog is 1 dollar 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: What is the solution set of the equation $\sqrt{2x+4}+4=x+2$ ?  $\textasciitilde$ 
Options:
aoVal: A
content: $\textbackslash{0\textbackslash}$ 
aoVal: B
content: $\textbackslash{6\textbackslash}$ 
aoVal: C
content: $\textbackslash{0, 6\textbackslash}$ 
aoVal: D
content: There are no solutions to the given equation 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Simplify the expression． ~\hspace{0pt}\hspace{0pt}\hspace{0pt}\hspace{0pt}\hspace{0pt}\hspace{0pt}  $$a+2a=$$~\uline{~~~~~~~~~~}~ 
Options:
aoVal: A
content: $$2a$$ 
aoVal: B
content: $$a+2a$$ 
aoVal: C
content: $$3a$$ 
aoVal: D
content: $$a3$$ 
Answer: C
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution->Algebraic Expressions
Problem: What is the value of this expression: $$2\times0\times0\times6+2006$$? (2006 Math Kangaroo Problem, Level 3-4, Question \#2) 
Options:
aoVal: A
content: $$0$$ 
aoVal: B
content: $$2006$$ 
aoVal: C
content: $$2014$$ 
aoVal: D
content: $$2018$$ 
aoVal: E
content: $$4012$$ 
Answer: B
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Mixed Operations
Problem: Paul draws a plan of his school using a scale of $$2\text{cm}$$ to $$5\text{m}$$.  On the plan, the school hall is $$6\text{cm}$$ long.  What is the real length of the hall? 
Options:
aoVal: A
content: $$15\text{m}$$ 
aoVal: B
content: $$18\text{m}$$ 
aoVal: C
content: $$9\text{m}$$ 
aoVal: D
content: $$12\text{m}$$ 
Answer: A
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Ratios and Proportions->Proportions->Scale
Problem: The harmonic mean of a set of non-zero numbers is the reciprocal of the average of the reciprocals of the numbers. What is the harmonic mean of 1, 2, and 4? 
Options:
aoVal: A
content: $\dfrac{3}{7}$ 
aoVal: B
content: $\dfrac{7}{12}$ 
aoVal: C
content: $\dfrac{12}{7}$ 
aoVal: D
content: $\dfrac{7}{4}$ 
aoVal: E
content: $\dfrac{7}{3}$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Comparing, Ordering and Estimating->Comparing and Ordering->Comparing and Ordering Fraction by Comparing Its Reciprocal
Source: 其它
Problem: Which number is the only factor of both $56$ and $36$? 
Options:
aoVal: A
content: $$4$$ 
aoVal: B
content: $$6$$ 
aoVal: C
content: $$7$$ 
aoVal: D
content: $$8$$ 
aoVal: E
content: $$9$$ 
Answer: A
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Which of the following does not contain a constant? 
Options:
aoVal: A
content: $3x-1$ 
aoVal: B
content: $2x+\frac{y+3}{3}$ 
aoVal: C
content: $$3a+\frac{3}{b}$$ 
aoVal: D
content: $3$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution->Algebraic Expressions
Source: 其它
Problem: $$3$$ ones, $$6$$ tenths and $$7$$ thousandths is ． 
Options:
aoVal: A
content: $$0.367$$ 
aoVal: B
content: $$3.067$$ 
aoVal: C
content: $$3.607$$ 
aoVal: D
content: $$3.670$$ 
Answer: C
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Basic Understanding of Decimals
Problem: $$2^{4}$$ means $$2 \times 2 \times 2 \times 2.$$  Which one is larger: $$5^{4}$$ or $$4^{5}$$? 
Options:
aoVal: A
content: $$5^{4}$$ 
aoVal: B
content: $$4^{5}$$ 
aoVal: C
content: They are equal. 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Power->Understanding the meaning of Power
Problem: What is three-quarter of $128$? 
Options:
aoVal: A
content: $$68$$ 
aoVal: B
content: $$75$$ 
aoVal: C
content: $$102$$ 
aoVal: D
content: $$96$$ 
aoVal: E
content: $$84$$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: The first two terms of a sequence are $1$ and $2$. Each of the following terms in the sequence is the sum of all the terms which come before it in the sequence. Which of these is not a term in the sequence? 
Options:
aoVal: A
content: $6$ 
aoVal: B
content: $24$ 
aoVal: C
content: $48$ 
aoVal: D
content: $72$ 
aoVal: E
content: $96$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables->Arithmetic Sequences
Source: 其它
Problem: A 99\% confidence interval for the weights of a random sample of high school wrestlers is reported as (125, 160). Which of the following statements about this interval is true? 
Options:
aoVal: A
content: At least 99\% of the weights of high school wrestlers are in the interval (125, 160). 
aoVal: B
content: The probability is 0.99 that the true mean weight of high school wrestlers is in the interval (125, 190). 
aoVal: C
content: 99\% of all samples of this size will yield a confidence interval of (125,160). 
aoVal: D
content: The procedure used to generate this confidence interval will capture the true mean weight of high school wrestlers 99\% of the time. 
aoVal: E
content: The probability is 0.99 that a randomly selected wrestler will weigh between 125 and 160 lb. 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: We've compared two sets of data in a correlational study and have found a correlation coefficient of +.83. We can legitimately conclude that there's what kind of relationship between our measures? 
Options:
aoVal: A
content: No relationship 
aoVal: B
content: Strong inverse relationship 
aoVal: C
content: Strong positive relationship 
aoVal: D
content: Weak inverse relationship 
aoVal: E
content: Weak positive relationship 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: A popular computer card game keeps track of the number of games played and the number of games won on that computer. The cards are shuffled before each game, so the outcome of the game is independent from one game to the next and is based on the skill of the player. Let X represent the number of games that have been won out of 100 games. Under which of the following situations would X be a binomial random variable? 
Options:
aoVal: A
content: All games were played be the same player, whose skill improved over the course of the 100 games. 
aoVal: B
content: A group of 5 players of different skill levels were each allowed to play 20 games in a row. 
aoVal: C
content: A group of players of different skill levels were each allowed to play until they had lost 3 games and this resulted in 100 games played. 
aoVal: D
content: Two players of equal skill level each played one game a day for 50 days and their skill level did not change from day to day. 
aoVal: E
content: Two players of different skill levels competed by allowing one player to continue until a game was lost, then the other player to continue until a game was lost, and so on, until 100games were played. 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: After we simplify $$2+2-2+2-2+2-2+2-2+2$$ the resut will be :． 
Options:
aoVal: A
content: $$0$$ 
aoVal: B
content: $$2$$ 
aoVal: C
content: $$4$$ 
aoVal: D
content: $$12$$ 
aoVal: E
content: $$20$$ 
Answer: C
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Addition and Subtraction ->Addition and Subtraction of Whole Numbers->Questions Involving Addition and Subtraction
Problem: $a$ is $25\textbackslash\%$ more than $2022$, and b is $20\textbackslash\%$ less than $a$. What is the value of $b$? 
Options:
aoVal: A
content: $$1294.5$$ 
aoVal: B
content: $$1617.5$$ 
aoVal: C
content: $$2022$$ 
aoVal: D
content: $$2527.5$$ 
aoVal: E
content: $$3159.375$$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Simplify expression $$a+ 3(a-1)$$. ． 
Options:
aoVal: A
content: $$a+3$$ 
aoVal: B
content: $$3a-3$$ 
aoVal: C
content: $$4a-3$$ 
aoVal: D
content: $$3-4a$$ 
Answer: C
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution->Algebraic Expressions
Problem: $(3)\textbackslash{} 1.5\div0.3=$ 
Options:
aoVal: A
content: $$0.5$$ 
aoVal: B
content: $$5$$ 
aoVal: C
content: $$50$$ 
aoVal: D
content: $$0.05$$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Multiplication and Division of Decimals
Source: 其它
Problem: $\dfrac{1}{2}=\dfrac{?}{8}$ 
Options:
aoVal: A
content: $$1$$ 
aoVal: B
content: $$2$$ 
aoVal: C
content: $$3$$ 
aoVal: D
content: $$4$$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Fractions
Source: 其它
Problem: Which of the following is equivalent to $$\frac{6}{8}$$? 
Options:
aoVal: A
content: $$\frac{7}{9}$$ 
aoVal: B
content: $$\frac{5}{7}$$ 
aoVal: C
content: $$\frac{4}{6}$$ 
aoVal: D
content: $$\frac{3}{4}$$ 
Answer: D
Analysis: N/A. 
Knowledge points: Overseas In-curriculum->Knowledge Point->Knowing Numbers->Fractions->Basic Properties of Fractions->Using Common Factors to Simplify Fractions
Overseas Competition->Knowledge Point->Calculation Modules->Fractions
Problem: Study the number pattern below. What is the missing number?  $$395$$, , $$415$$, $$425$$, $$435$$ 
Options:
aoVal: A
content: $$390$$ 
aoVal: B
content: $$400$$ 
aoVal: C
content: $$405$$ 
aoVal: D
content: $$410$$ 
Answer: C
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables->Patterns in Number Sequences
Problem: Jack spent~$\dfrac{1}{24}$~of money on a new watch and~$\dfrac{5}{6}$~of money on a new phone. What fraction of the money did Jack spend altogether? 
Options:
aoVal: A
content: $\frac{11}{12}$ 
aoVal: B
content: $\frac{11}{24}$ 
aoVal: C
content: $\frac{7}{8}$ 
aoVal: D
content: $\frac{3}{4}$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Fractions->Operations of Fractions
Problem: Hans has $9$ dollars and $20$ cents. One can of soft drink costs $1.20$ dollarss, and one chocolate bar is $60$ cents cheaper than one can of soft drink. After buying $3$ cans of soft drink and two chocolate bars, how much does he have left? 
Options:
aoVal: A
content: $4.8.$ dollars 
aoVal: B
content: $4.2.$ dollars 
aoVal: C
content: $4.4.$ dollars 
aoVal: D
content: $5.4.$ dollars 
aoVal: E
content: $6.4.$ dollars 
Answer: C
Analysis: N/A 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: In one of the following lists, the numbers are~\uline{not}~all increasing. 
Options:
aoVal: A
content: $$\frac{1}{3}$$, $$0.25$$, $$\frac{3}{10}$$, $$0.5$$ 
aoVal: B
content: $$\frac{3}{5}$$, $$0.7$$, $$\frac{4}{5}$$, $$1.5$$ 
aoVal: C
content: $$\frac{2}{5}$$, $$0.5$$, $$\frac{7}{10}$$, $$0.9$$ 
aoVal: D
content: $$\frac{3}{5}$$, $$0.5$$, $$\frac{4}{5}$$, $$0.9$$ 
aoVal: E
content: $$\frac{2}{5}$$, $$1.5$$, $$\frac{10}{5}$$, $$2.3$$  Which list is it? Just write down the letter.  (For this question, we do not need to see any working). 
Answer: D
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Comparing, Ordering and Estimating->Comparing and Ordering->By Converting Fractions into Decimals
Problem: Find the value of $$825-342$$. 
Options:
aoVal: A
content: $$473$$ 
aoVal: B
content: $$483$$ 
aoVal: C
content: $$523$$ 
aoVal: D
content: $$583$$ 
Answer: B
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Addition and Subtraction
Problem: The outside temperature in a town is $-18$ $^{}o$$C$. What change in the temperature, would bring the outside temperature to $0$ $^{}o$$C$? 
Options:
aoVal: A
content: $-19$ 
aoVal: B
content: $-18$ 
aoVal: C
content: $18$ 
aoVal: D
content: $0$ 
Answer: C
Analysis: N/A 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Negative Numbers
Source: 其它
Problem: Find the missing number in the pattern below?  $$1$$, $$1$$, $$2$$, $$3$$, $$5$$, $$8$$, ?, $$21$$, $$34$$ 
Options:
aoVal: A
content: $$9$$ 
aoVal: B
content: $$10$$ 
aoVal: C
content: $$12$$ 
aoVal: D
content: $$13$$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables->Patterns in Number Sequences
Problem: Which of the following is not an algebraic expression? 
Options:
aoVal: A
content: $x+6$ 
aoVal: B
content: $8$ 
aoVal: C
content: $2y+z=2$ 
aoVal: D
content: $7-1$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution->Algebraic Expressions
Source: 其它
Problem: Find the equation of a line using the following information:  slope=$-32$, $y$-intercept=$56$. 
Options:
aoVal: A
content: $y=32x-56$ 
aoVal: B
content: $y=56+32x$ 
aoVal: C
content: $y=56x+32$ 
aoVal: D
content: $y=-32x+56$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Linear Equations with one Variable
Source: 其它
Problem: Suppose that you have $$x$$ bags of apples, each bag contains $$5$$ apples. Eddie has $$y$$ bags of apples, each bag contains $$6$$ apples. Eddie sells you $$3$$ bags of apples. How many apples do you have now? 
Options:
aoVal: A
content: $$5x+3\times 6$$ 
aoVal: B
content: $$5x+6y$$ 
aoVal: C
content: $$6y$$ 
aoVal: D
content: $$3\times 6$$ 
Answer: A
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution->Algebraic Expressions
Problem: Which Law is used in the following calculation: $$2.76+10+3.75=3.24+(2.76+3.24)$$? 
Options:
aoVal: A
content: The Commutative Law of Addition 
aoVal: B
content: The Associative Law of Addition 
aoVal: C
content: Both 
aoVal: D
content: None 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Addition and Subtraction of Decimals->Addition of Decimals
Problem: $\dfrac{1}{2}+\dfrac{1}{3}=$ 
Options:
aoVal: A
content: $\dfrac{1}{5}$ 
aoVal: B
content: $1$ 
aoVal: C
content: $\dfrac{2}{3}$ 
aoVal: D
content: $\dfrac{5}{6}$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Fractions->Basic Understanding of Fractions->Using Common Multiples to Express Fractions in the Same Denomination
Source: 其它
Problem: ($$1$$) Abby bought $3$ crates of apples. Each crate has $42$ apples. How many apples are there in total? 
Options:
aoVal: A
content: $$42$$ 
aoVal: B
content: $$45$$ 
aoVal: C
content: $$126$$ 
aoVal: D
content: $$46$$ 
Answer: C
Analysis: $$N.A$$ 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Multiplication and Division
Source: 其它