math-eval/TAL-SCQ5K huggingface dataset:
Problem: Which three numbers can be put in the blanks to make the statement correct?  $2010 +$~\uline{~~~~~~~~~~}~$ = 2022 +$~\uline{~~~~~~~~~~}~$ -$~\uline{~~~~~~~~~~}~ 
Options:
aoVal: A
content: $21$, $12$ and $3$ 
aoVal: B
content: $36$, $25$ and $2$ 
aoVal: C
content: $18$, $8$ and $4$ 
aoVal: D
content: $14$, $5$ and $7$ 
aoVal: E
content: $24$, $25$ and $15$ 
Answer: A
Analysis: N/A 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: What is one third of $672$? 
Options:
aoVal: A
content: $$224$$ 
aoVal: B
content: $$234$$ 
aoVal: C
content: $$254$$ 
aoVal: D
content: $$244$$ 
aoVal: E
content: $$214$$ 
Answer: A
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Which fraction is equivalent to $$\frac{20}{32}$$? 
Options:
aoVal: A
content: $$\frac58$$ 
aoVal: B
content: $$\frac{12}{16}$$ 
aoVal: C
content: $$\frac4{10}$$ 
aoVal: D
content: $$\frac68$$ 
aoVal: E
content: $$\frac85$$ 
Answer: A
Analysis: N/A． 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Fractions->Basic Understanding of Fractions->Using Common Factors to Simplify Fractions
Problem: $4\times4\times4\times4\times4=$． 
Options:
aoVal: A
content: $$5^{20}$$ 
aoVal: B
content: $$4^{3}$$ 
aoVal: C
content: $$5^{4}$$ 
aoVal: D
content: $$4^{5}$$ 
aoVal: E
content: $3^{5}$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Power->Computing Powers
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->Whole Numbers
Source: 其它
Problem: What is the opposite sign of \textbf{\textquotesingle+\textquotesingle{}}? 
Options:
aoVal: A
content: $$+$$ 
aoVal: B
content: $$-$$ 
aoVal: C
content: $$\times $$ 
aoVal: D
content: $$\div $$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Which one of these is closest to $$999.99+99.99+9.99+0.99$$? 
Options:
aoVal: A
content: $$990$$ 
aoVal: B
content: $$999$$ 
aoVal: C
content: $$1000$$ 
aoVal: D
content: $$1111$$ 
aoVal: E
content: $$1100$$ 
Answer: D
Analysis: N/A.  Revise from (GL Assessment book$$1$$《Paper $$2$$》 $$6$$ years Question \#$$20$$) 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Addition and Subtraction of Decimals->Applying Place Value Principle in Fast Addition and Subtraction of Decimals
Problem: Which of these fractions is the largest? 
Options:
aoVal: A
content: $\frac{2}{5}$ 
aoVal: B
content: $\frac{7}{20}$ 
aoVal: C
content: $\frac{1}{2}$ 
aoVal: D
content: $\frac{7}{10}$ 
aoVal: E
content: $\frac{3}{4}$ 
Answer: E
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Comparing, Ordering and Estimating->Comparing and Ordering
Problem: For number $$300$$, what is its exponential form? 
Options:
aoVal: A
content: $$2^{2}\times 3^{2}\times 5$$ 
aoVal: B
content: $$2^{2}\times 3\times 5^{2}$$ 
aoVal: C
content: $$2^{3}\times 3^{2}\times 5$$ 
aoVal: D
content: $$2^{3}\times 3\times 5$$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Power->Computing Powers->Exponentiation of Powers
Source: 其它
Problem: After simplifying the following expressions, which one is different from others? 
Options:
aoVal: A
content: $(2x+y)-(x-y)$ 
aoVal: B
content: $(5x-y)+(-4x+3y)$ 
aoVal: C
content: $(3x+y)-(y-2x)$ 
aoVal: D
content: $(4x+y)-(3x-y)$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution->Algebraic Expressions
Problem: If $a^{4}b^{2}=25$, then what is the value of $a^{6}b^{3}$ ?  $\textasciitilde$ 
Options:
aoVal: A
content: $$5$$ 
aoVal: B
content: $$25$$ 
aoVal: C
content: $$125$$ 
aoVal: D
content: $$625$$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: What is the difference between $$89402$$ and $$968$$? Round off your answer to the nearest ten. 
Options:
aoVal: A
content: $$88400$$ 
aoVal: B
content: $$88420$$ 
aoVal: C
content: $$88430$$ 
aoVal: D
content: $$88440$$ 
Answer: C
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Addition and Subtraction
Problem: Which of these numbers is the smallest? 
Options:
aoVal: A
content: $$0.3$$ 
aoVal: B
content: $$0.35$$ 
aoVal: C
content: $$0.275$$ 
aoVal: D
content: $$0.22$$ 
Answer: D
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Comparing, Ordering and Estimating->Comparing and Ordering->Comparing and Ordering Decimals
Problem: In $$26.73$$, the digit $$3$$ has the value of ． 
Options:
aoVal: A
content: $$3$$ 
aoVal: B
content: $$0.3$$ 
aoVal: C
content: $$0.03$$ 
aoVal: D
content: $$0.003$$ 
Answer: C
Analysis: N/A.(Targeting Mathematics Workbook 《Decimals》Primary $$4$$B Question \#$$43$$) 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Basic Understanding of Decimals
Problem: $421\times4=？$ 
Options:
aoVal: A
content: $$1230$$ 
aoVal: B
content: $$1684$$ 
aoVal: C
content: $$1464$$ 
aoVal: D
content: $$2642$$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Multiplication and Division
Source: 其它
Problem: Let $$f$$ be a function, such that for every real number $$x$$  $$\quad\quad\quad f\left( x \right)={{x}^{2}}\left( f\left( x-1 \right)-1 \right)$$  If $$f\left( 1 \right)=10$$, then$$f\left( 3 \right)$$ is equal to:． 
Options:
aoVal: A
content: $$9$$ 
aoVal: B
content: $$15$$ 
aoVal: C
content: $$225$$ 
aoVal: D
content: $$315$$ 
aoVal: E
content: $$512$$ 
Answer: D
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Operations with New Definition->Operating Directly->Ordinary Type
Problem: A lot of bables were born in the zoo last year: two baby lions, three baby dolphins and four baby eagles  How many legs do all these babies have altogether? 
Options:
aoVal: A
content: $$20$$ 
aoVal: B
content: $$18$$ 
aoVal: C
content: $$16$$ 
aoVal: D
content: $$14$$ 
aoVal: E
content: $$12$$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: The graph of $y=x-3$ does not pass through which quadrant? 
Options:
aoVal: A
content: Quadrant $I$ 
aoVal: B
content: Quadrant $II$ 
aoVal: C
content: Quadrant $III$ 
aoVal: D
content: Quadrant $IV$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation
Source: 其它
Problem: Given that carbon has a valence of 4 (it needs to form 4 covalent bonds to be stable) and oxygen has a valence of 2, how many oxygen atoms can a carbon atom bond to? 
Options:
aoVal: A
content: $$1$$ 
aoVal: B
content: $$2$$ 
aoVal: C
content: $$3$$ 
aoVal: D
content: $$4$$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Dean swims for $72$ minutes. To keep his mind active, he works out the fraction of the total time that has passed every 30 seconds to $72$ minutes. How many of the results of his calculations can be expressed in the form $\frac{1}{n}$, where $n$ is an integer greater than $1$? 
Options:
aoVal: A
content: $$12$$ 
aoVal: B
content: $$13$$ 
aoVal: C
content: $$14$$ 
aoVal: D
content: $$15$$ 
aoVal: E
content: $$16$$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Operations through Formulas->Factorization
Source: 其它
Problem: Fill in the blank with the correct number.  1, 1, 2, 3, 5, 8,~\uline{~~~~~~~~~~}~ 
Options:
aoVal: A
content: $$11$$ 
aoVal: B
content: $$12$$ 
aoVal: C
content: $$13$$ 
aoVal: D
content: $$14$$ 
aoVal: E
content: None of the above 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables->Arithmetic Sequences
Source: 其它
Problem: Rational numbers: $$1^{2}$$, $$100\textbackslash\%$$, $$-\textbar-1\textbar$$, $$\frac{2^{2023}}{2^{2022}}$$. There are equal to $$1$$. 
Options:
aoVal: A
content: $$1$$ 
aoVal: B
content: $$2$$ 
aoVal: C
content: $$3$$ 
aoVal: D
content: $$4$$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Power->Computing Powers->Exponentiation of Powers
Source: 其它
Problem: Which fraction is closest to $\frac34$? 
Options:
aoVal: A
content: $$\frac12$$ 
aoVal: B
content: $\frac38$ 
aoVal: C
content: $$\frac45$$ 
aoVal: D
content: $\frac{73}{100}$ 
aoVal: E
content: $$\frac{44}{80}$$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Which of the expressions below has the same result as $16 \div (2\times4)$? 
Options:
aoVal: A
content: $16\div2\times4$ 
aoVal: B
content: $16\times 2 \div 4$ 
aoVal: C
content: $16\div2\div4$ 
Answer: C
Analysis: N/A 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Multiplication and Division
Source: 其它
Problem: $$826-18=$$． 
Options:
aoVal: A
content: $$718$$ 
aoVal: B
content: $$808$$ 
aoVal: C
content: $$816$$ 
aoVal: D
content: $$807$$ 
aoVal: E
content: $$818$$ 
Answer: B
Analysis: N/A. 
Knowledge points: Overseas In-curriculum->Knowledge Point->Operations of Numbers ->Addition and Subtraction of Whole Numbers->Adding and Subtracting within 10000->Subtracting 2-digit Numbers from 3-digit Numbers 
Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Addition and Subtraction ->Addition and Subtraction of Whole Numbers
Problem: Which of the following commonly used conversion factors cannot be used to convert weight units? 
Options:
aoVal: A
content: $\frac{1000\text{g}}{1\text{kg}}$ 
aoVal: B
content: $\frac{16\text{ounces}}{1\text{lb}}$ 
aoVal: C
content: $\frac{1\text{kg}}{1000\text{g}}$ 
aoVal: D
content: $\frac{60\text{minutes}}{1\text{day}}$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Unit Conversion
Source: 其它
Problem: Katie bought three identical pencils, two identical pens and two identical erasers, and paid ＄$$11.60$$. Hannah bought one pencil, two pens and two erasers, and she paid ＄$$8.40$$. How much does one pencil cost? 
Options:
aoVal: A
content: ＄$$1.20$$ 
aoVal: B
content: ＄$$1.50$$ 
aoVal: C
content: ＄$$1.60$$ 
aoVal: D
content: ＄$$3.20$$ 
Answer: C
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution->Equivalent Substitution that can be Directly Calculated
Problem: Under the influence of a force, an object of mass 4 kg accelerates from 3 m/s to 6 m/s in 8 s. How much work was done on the object during this time? 
Options:
aoVal: A
content: $$27J$$ 
aoVal: B
content: $$54J$$ 
aoVal: C
content: $$72J$$ 
aoVal: D
content: $$96J$$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: A blind taste test will be conducted with 9 volunteers to determine whether people can taste a difference between bottled water and tap water. Each participant will taste the water from two different glasses and then identify which glass he or she thinks contains the tap water. Assuming that people cannot taste a difference between bottled water and tap water, what is the probability that \uline{at least} 8 of the 9 participants will correctly identify the tap water? 
Options:
aoVal: A
content: $$0.0020$$ 
aoVal: B
content: $$0.0195$$ 
aoVal: C
content: $$0.8889$$ 
aoVal: D
content: $$0.9805$$ 
aoVal: E
content: $$0.9980$$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Timmy has ten $20$ cents coins and some $50$ cents coins.  All these coins add up to ＄$5.50$.  How many $50$ cents coins does Timmy have? 
Options:
aoVal: A
content: $$5$$ 
aoVal: B
content: $$6$$ 
aoVal: C
content: $$7$$ 
aoVal: D
content: $$9$$ 
aoVal: E
content: $$11$$ 
Answer: C
Analysis: N/A 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Which of the following is the correct "Percent of Change Formula"? 
Options:
aoVal: A
content: $\frac{new-original}{new}\times 100\textbackslash\%$ 
aoVal: B
content: $\frac{original-new}{new}\times 100\textbackslash\%$ 
aoVal: C
content: $\frac{new-original}{original}\times 100\textbackslash\%$ 
aoVal: D
content: $\frac{original-new}{original}\times 100\textbackslash\%$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Percentage Calculation
Source: 其它
Problem: Use the digits $2$, $3$, $8$ to form a three-digit number and each digit can only be used once.  What is the sum of the maximum $3$-digit number~and the minimum $3$-digit number？ 
Options:
aoVal: A
content: $$611$$ 
aoVal: B
content: $$655$$ 
aoVal: C
content: $$1042$$ 
aoVal: D
content: $$1061$$ 
aoVal: E
content: $$1070$$ 
Answer: E
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Calculation of Multi-digit Numbers
Source: 其它
Problem: $5 - 2 + 4 \times3 =$． 
Options:
aoVal: A
content: $$-13$$ 
aoVal: B
content: $$25$$ 
aoVal: C
content: $$-9$$ 
aoVal: D
content: $$27$$ 
aoVal: E
content: $$15$$ 
Answer: E
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Mixed Operations
Problem: A box has fewer than 50 cookies in it. The cookies can be divided evenly between 2, 3, or 4 children. However, they cannot be divided evenly between 7 children because 6 more cookies would be needed. How many cookies are there in the box? (2021 Math Kangaroo Problem, Level 3-4, Question \#20) 
Options:
aoVal: A
content: $$12$$ 
aoVal: B
content: $$24$$ 
aoVal: C
content: $$30$$ 
aoVal: D
content: $$36$$ 
aoVal: E
content: $$48$$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Every day of the year, an average of $199$ people each donated $5$p to a charity.  Estimate how much money the charity raised through donations in one year? 
Options:
aoVal: A
content: £$3600$ 
aoVal: B
content: £$360$ 
aoVal: C
content: £$36$ 
aoVal: D
content: £$36000$ 
aoVal: E
content: £$10$ 
Answer: A
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: $$10 \times259 = 259\times \square +6\times 259$$  The missing number in the box is ． 
Options:
aoVal: A
content: $$1$$ 
aoVal: B
content: $$2$$ 
aoVal: C
content: $$3$$ 
aoVal: D
content: $$4$$ 
Answer: D
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Distributive Law of Whole Numbers
Problem: Which of the following inequalities is always true? 
Options:
aoVal: A
content: $x\geq20$ 
aoVal: B
content: $x\textless-10$ 
aoVal: C
content: $2x\textless2x-10$ 
aoVal: D
content: $0\textgreater-10$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Inequalities
Source: 其它
Problem: Linda buys five skirts costing £12.99,~£25.99, £18.99, £31.99 and~£9.99.  How much change does she get from £120? 
Options:
aoVal: A
content: £$$18.50$$ 
aoVal: B
content: £$$19.05$$ 
aoVal: C
content: £$$20.05$$ 
aoVal: D
content: £$$20.50$$ 
aoVal: E
content: £$$21.05$$ 
Answer: C
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Addition and Subtraction of Decimals->Subtraction of Decimals
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: Which of the following inequalities is always true? 
Options:
aoVal: A
content: $$20-x\geqslant 3$$ 
aoVal: B
content: $$\textbar x\textbar\leqslant 1$$ 
aoVal: C
content: $$23\textless32$$ 
aoVal: D
content: $$a-b\textless3a$$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Inequalities
Source: 其它
Problem: Which of these fractions is not equivalent to $\frac34$? 
Options:
aoVal: A
content: $\frac{12}{16}$ 
aoVal: B
content: $\frac{9}{12}$ 
aoVal: C
content: $\frac{6}{9}$ 
aoVal: D
content: $\frac{6}{8}$ 
aoVal: E
content: $\frac{15}{20}$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Fractions
Source: 其它
Problem: Determine the phenotype ratio (dominant phenotype : recessive phenotype) for a cross between a seal homozygous dominant for whisker length and a seal that has short whiskers. 
Options:
aoVal: A
content: 0:1 
aoVal: B
content: 1:0 
aoVal: C
content: 3:1 
aoVal: D
content: 1:3 
aoVal: E
content: 1:1 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: If the ratio of men to women at a party is $3:5$, which of the following could be the number of people at the party? 
Options:
aoVal: A
content: $$31$$ 
aoVal: B
content: $$32$$ 
aoVal: C
content: $$33$$ 
aoVal: D
content: $$34$$ 
aoVal: E
content: $$35$$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Ratios and Proportions
Source: 其它
Problem: Toyota's average cost of producing 3 cars is $\textbackslash$30,000$ and its average cost of producing 4 cars is $\textbackslash$25,000$. Find Toyota's total cost of producing 3 and 4 cars. What was the marginal cost of the 4th car? 
Options:
aoVal: A
content: $5000 
aoVal: B
content: $90000 
aoVal: C
content: $10000 
aoVal: D
content: $55000 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation
Source: 其它
Problem: Which value is a solution to the given equation $\textbar x-3\textbar=x-3$ 
Options:
aoVal: A
content: $$-3$$ 
aoVal: B
content: $$-1$$ 
aoVal: C
content: $$1$$ 
aoVal: D
content: $$3$$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Divide $$609$$ by $$6$$ and the quotient is． 
Options:
aoVal: A
content: $$11$$ 
aoVal: B
content: $$101$$ 
aoVal: C
content: $$3$$ 
aoVal: D
content: $$3654$$ 
Answer: B
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Multiplication and Division
Problem: A film lasted for $1$ hour and $25$ minutes and finished at $13:10$. At what time did the film start? 
Options:
aoVal: A
content: $11:55$ 
aoVal: B
content: $11:45$ 
aoVal: C
content: $12:05$ 
aoVal: D
content: $12:15$ 
aoVal: E
content: $12:25$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: What is the value of $$14\div4$$? 
Options:
aoVal: A
content: $$\frac{1}{4}$$ 
aoVal: B
content: $$\frac{2}{7}$$ 
aoVal: C
content: $$3 \frac{1}{4}$$ 
aoVal: D
content: $$3 \frac{1}{2}$$ 
Answer: D
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Fractions
Overseas In-curriculum->Knowledge Point->Knowing Numbers->Fractions->Meaning of Fractions->Relationship Between Fraction and Division
Problem: Will's calculator is broken. The $+$ and the $--$ buttons are the wrong way round.  What will he get if he types in $7 -- 4 + 1$? 
Options:
aoVal: A
content: $$12$$ 
aoVal: B
content: $$10$$ 
aoVal: C
content: $$4$$ 
aoVal: D
content: $$2$$ 
Answer: B
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: Jasson was selling some old stationery. A set of pens cost $\textbackslash$5x$ and a set of pencil cost $\textbackslash$y$. He then bought some new clothes for $\textbackslash$2x$. What is the amount of money Jasson has now in terms of $x$ and $y$? 
Options:
aoVal: A
content: $\textbackslash$(3x+y)$ 
aoVal: B
content: $\textbackslash$(3x-y)$ 
aoVal: C
content: $\textbackslash$(7x-y)$ 
aoVal: D
content: $\textbackslash$(7x+y)$ 
Answer: A
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution->Algebraic Expressions
Source: 其它
Problem: Dave bought $4$ packets of chips at $2.40$ dollars each and $3$ cans of soft drink at $70$ cents each. How much did he spend altogether? 
Options:
aoVal: A
content: $11.70$ dollars 
aoVal: B
content: $10.70$ dollars 
aoVal: C
content: $9.70$ dollars 
aoVal: D
content: $8.70$ dollars 
aoVal: E
content: $10.50$ dollars 
Answer: A
Analysis: N/A 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: If~$A\textbackslash{} \blacksquare\textbackslash{} B=(A\times A)-B$, then~$(3\textbackslash{} \blacksquare 4)\textbackslash{} \blacksquare\textbackslash{} 5$~$=$ $$ 
Options:
aoVal: A
content: $$0$$ 
aoVal: B
content: $$6$$ 
aoVal: C
content: $$20$$ 
aoVal: D
content: $$35$$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Operations with New Definition
Source: 其它
Problem: What is the answer when you multiply $$46$$ tens by $$10$$? 
Options:
aoVal: A
content: $$460$$ 
aoVal: B
content: $$4060$$ 
aoVal: C
content: $$4600$$ 
aoVal: D
content: $$4610$$ 
Answer: C
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Multiplication and Division
Problem: A bus leaves a bus station at $11:53$.  It travels at a constant speed of $60$km per hour.  How many km has the bus travelled by $12:38$? 
Options:
aoVal: A
content: $80\rm km$ 
aoVal: B
content: $30\rm km$ 
aoVal: C
content: $60\rm km$ 
aoVal: D
content: $75\rm km$ 
aoVal: E
content: $45\rm km$ 
Answer: E
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: The half-life of \textsuperscript{14}C, a radioactive isotope of carbon, is 5730 years. An archaeology team recently discovered an ancient burial site and detected only 1/4 of the expected amount of~\textsuperscript{14}C in the general environment. How old is this burial site? 
Options:
aoVal: A
content: 716 years 
aoVal: B
content: 2865 years 
aoVal: C
content: 11460 years 
aoVal: D
content: 22920 years 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Calculate the following number sequence:  $$12+12+12+12+12+12+12+12+12+12+12+12+12+12+12+12$$ 
Options:
aoVal: A
content: $$120$$ 
aoVal: B
content: $$132$$ 
aoVal: C
content: $$144$$ 
aoVal: D
content: $$156$$ 
aoVal: E
content: None of the above 
Answer: E
Analysis: $$N.A$$ 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Which of the following is equal to $$68\times20000$$? 
Options:
aoVal: A
content: $$60+8\times20000$$ 
aoVal: B
content: $$60\times20000+8$$ 
aoVal: C
content: $$10000+10000 \times68$$ 
aoVal: D
content: $$70\times20000-2\times20000$$ 
Answer: D
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Distributive Law of Whole Numbers
Problem: Kangie eats only apples on Monday, Wednesday and Friday. On Tuesdays and Thursdays he eats only mangoes. He eats either 2 apples or 3 mangoes a day. On Saturdays and Sundays he eats nothing. How many pieces of fruit does Kangie eat in two weeks? 
Options:
aoVal: A
content: $$12$$ 
aoVal: B
content: $$16$$ 
aoVal: C
content: $$18$$ 
aoVal: D
content: $$20$$ 
aoVal: E
content: $$24$$ 
Answer: E
Analysis: $$N.A.$$ 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: \uline{Before} selling some bottles, how many bottles does he have? 
Options:
aoVal: A
content: $$1340$$ 
aoVal: B
content: $$1340+855$$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Operations through Formulas
Source: 其它