math-eval/TAL-SCQ5K huggingface dataset:
Problem: Which of the following has the same value as $$\frac{2}{9}\div\frac{3}{5}$$? 
Options:
aoVal: A
content: $$\frac{2}{9}\times \frac{3}{5}$$ 
aoVal: B
content: $$\frac{9}{2}\times \frac{3}{5}$$ 
aoVal: C
content: $$\frac{2}{9}\times \frac{5}{3}$$ 
aoVal: D
content: $$\frac{9}{2}\times \frac{5}{3}$$ 
Answer: C
Analysis: N/A. 
Knowledge points: Overseas In-curriculum->Knowledge Point->Operations of Numbers ->Multiplication and Division of Fractions->Division of Fractions->Dividing Fractions by Fractions
Overseas Competition->Knowledge Point->Calculation Modules->Fractions
Problem: $$4+4+4+4+4$$ is the same as ． 
Options:
aoVal: A
content: $$4\times 4$$ 
aoVal: B
content: $$4 + 5$$ 
aoVal: C
content: $$5\times4$$ 
aoVal: D
content: $$4\times4\times4\times4 \times4$$ 
Answer: C
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Multiplication and Division
Problem: Derrick lists down all whole numbers from $$1$$ to $$40$$. Lisa selects all odd numbers and adds them up. Aisha selects all the even numbers and adds them up. What is the difference between Aisha\textquotesingle s and Lisa\textquotesingle s sums? 
Options:
aoVal: A
content: $$40$$ 
aoVal: B
content: $$20$$ 
aoVal: C
content: $$10$$ 
aoVal: D
content: $$0$$ 
aoVal: E
content: None of the above 
Answer: B
Analysis: $$N.A$$ 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables->Arithmetic Sequences
Source: 其它
Problem: Lisa writes six numbers which contain all the digits from $$1$$ to $$6$$, and each digit from $$1$$ to $$6$$ only appears once. What number comes next?  $$1$$, $$3$$, $$6$$, $$4$$, $$2$$,~\uline{~~~~~~~~~~}~. 
Options:
aoVal: A
content: $$1$$ 
aoVal: B
content: $$2$$ 
aoVal: C
content: $$3$$ 
aoVal: D
content: $$5$$ 
Answer: D
Analysis: N/A 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables->Patterns in Number Sequences
Problem: Express $$0.\dot{2}1\dot{0}$$ as a fraction. 
Options:
aoVal: A
content: $\dfrac{70}{333}$ 
aoVal: B
content: $\dfrac{21}{99}$ 
aoVal: C
content: $\dfrac{21}{999}$ 
aoVal: D
content: $\dfrac{7}{333}$ 
Answer: A
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Recurring Decimals
Source: 其它
Problem: What is the mode of these numbers? $1, 1, 1, 2, 3, 4, 6$ 
Options:
aoVal: A
content: $$2$$ 
aoVal: B
content: $$5$$ 
aoVal: C
content: $$1$$ 
aoVal: D
content: $$18$$ 
Answer: A
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Read and Write numbers
Problem: A car is traveling at a speed of 30 m/s. If the car decelerates uniformly at a rate of 5 m/s^{2} for a distance of 80 meters, what is its final speed? 
Options:
aoVal: A
content: 5 m/s 
aoVal: B
content: 10 m/s 
aoVal: C
content: 20 m/s 
aoVal: D
content: 30 m/s 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Fractions
Source: 其它
Problem: $$5$$+$$19$$ is the same as~\uline{~~~~~~~~~~}~+$$7$$. 
Options:
aoVal: A
content: $$24$$ 
aoVal: B
content: $$18$$ 
aoVal: C
content: $$17$$ 
aoVal: D
content: $$16$$ 
aoVal: E
content: $$7$$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: How many $$10\text{p}$$ coins can I get for £$$1.80$$? 
Options:
aoVal: A
content: $$10$$ coins 
aoVal: B
content: $$18$$ coins 
aoVal: C
content: $$88$$ coins 
aoVal: D
content: $$108$$ coins 
aoVal: E
content: $$180$$ coins 
Answer: B
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Unit Conversion->Converting between Units of Money
Problem: What number is half way between $$3.5$$ and $$6.9$$? 
Options:
aoVal: A
content: $$4.7$$ 
aoVal: B
content: $$5.5$$ 
aoVal: C
content: $$4.9$$ 
aoVal: D
content: $$5.7$$ 
aoVal: E
content: $$5.2$$ 
Answer: E
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Basic Understanding of Decimals->Knowing Decimals
Problem: SASMO 2018  A mother gave the same number of cheese sticks to each of her 4 children---  Wendy, Xander, Yasmin and Zane. Wendy gave half of her cheese sticks to  Yasmin, then Yasmin gave 2 to Xander. After that, Zane gave 3 to Yasmin. In  the end, Yasmin had 10 cheese sticks. What was the total number of cheese  sticks that the mother gave to her 4 children? 
Options:
aoVal: A
content: $$6$$ 
aoVal: B
content: $$8$$ 
aoVal: C
content: $$12$$ 
aoVal: D
content: $$18$$ 
aoVal: E
content: $$24$$ 
Answer: E
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Calculate~$\dfrac{1}{6}+\dfrac{5}{12}=$~\uline{~~~~~~~~~~}~ 
Options:
aoVal: A
content: $$\dfrac{2}{12}$$ 
aoVal: B
content: $$\dfrac{7}{24}$$ 
aoVal: C
content: $$\dfrac{7}{12}$$ 
aoVal: D
content: $$\dfrac{1}{3}$$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Fractions->Operations of Fractions->Addition and Subtraction of Fractions
Source: 其它
Problem: In a park there are 15 animals: cows, cats, and kangaroos. We know that precisely 10 are not cows and precisely 8 are not cats. How many kangaroos are there in the park? (2019 Math Kangaroo Problem, Level 3-4, Question \#21) 
Options:
aoVal: A
content: $$2$$ 
aoVal: B
content: $$3$$ 
aoVal: C
content: $$4$$ 
aoVal: D
content: $$8$$ 
aoVal: E
content: $$10$$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Stamps cost $0.65$p each.  How many stamps can Peter purchase with a £$5$ note? 
Options:
aoVal: A
content: $$5$$ 
aoVal: B
content: $$6$$ 
aoVal: C
content: $$7$$ 
aoVal: D
content: $$8$$ 
aoVal: E
content: $$9$$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Which one is not equal to $3\times5$~？ 
Options:
aoVal: A
content: $$5+5+5$$ 
aoVal: B
content: $$5+3$$ 
aoVal: C
content: $5\times3$ 
aoVal: D
content: $$3+3+3+3+3$$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Multiplication and Division
Source: 其它
Problem: Pauline has $2$ erasers, $3$ notebooks, $1$ carrot, $5$ toy cars, $7$ fans, and $3$ bowls. How many pieces of stationeries does Pauline have? 
Options:
aoVal: A
content: $$2$$ 
aoVal: B
content: $$5$$ 
aoVal: C
content: $$6$$ 
aoVal: D
content: $$8$$ 
aoVal: E
content: $$12$$ 
Answer: B
Analysis: N/A 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: The caffeine content of 8-ounce cans of a certain cola drink is approximately normally distributed with mean 33 milligrams (mg). A randomly selected 8-ounce can containing 35 mg of caffeine is 1.2 standard deviations above the mean. Approximately what percent of 8-ounce cans of the cola have a caffeine content greater than 35 mg? 
Options:
aoVal: A
content: 1\% 
aoVal: B
content: 8\% 
aoVal: C
content: 12\% 
aoVal: D
content: 16\% 
aoVal: E
content: 99\% 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: The digit $9$ in which number represents a value of $0.09$? 
Options:
aoVal: A
content: $$9.013$$ 
aoVal: B
content: $$0.689$$ 
aoVal: C
content: $$21.9$$ 
aoVal: D
content: $$62.89$$ 
Answer: D
Analysis: N/A 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Decimals
Source: 其它
Problem: Which one is the smallest? 
Options:
aoVal: A
content: $$\frac{17}{23}$$ 
aoVal: B
content: $$\frac{1}{9}$$ 
aoVal: C
content: $$\frac{13}{19}$$ 
aoVal: D
content: $$\frac{61}{67}$$ 
aoVal: E
content: $$\frac{1}{7}$$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Comparing, Ordering and Estimating->Comparing and Ordering
Source: 其它
Problem: A watermelon weighs as much as three apples, and one apple weighs as much as three strawberries. How many strawberries weigh the same as one watermelon? 
Options:
aoVal: A
content: $$3$$ 
aoVal: B
content: $$5$$ 
aoVal: C
content: $$6$$ 
aoVal: D
content: $$8$$ 
aoVal: E
content: $$9$$ 
Answer: E
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution
Source: 其它
Problem: Fountain X has $245$ ℓ of water. Fountains X and Y have $600$ ℓ of water altogether. How much water does Fountain Y have? 
Options:
aoVal: A
content: $$355$$ ℓ 
aoVal: B
content: $$465$$ ℓ 
aoVal: C
content: $$555$$ ℓ 
aoVal: D
content: $$565$$ ℓ 
Answer: A
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Unit Conversion->Converting between Units of Volume and Capacity
Source: 其它
Problem: The mass of a crate with $$8$$ glass bottles is $$\text{4450 g}$$.  The mass of the same crate and $$5$$ glass bottles is $$\text{3100 g}$$.  Find the mass of the empty crate. 
Options:
aoVal: A
content: $$\text{450 g}$$ 
aoVal: B
content: $$\text{850 g}$$ 
aoVal: C
content: $$\text{1350 g}$$ 
aoVal: D
content: $$\text{250 g}$$ 
Answer: B
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution->Algebraic Expressions
Problem: Calculate:  $10 \times 10 =$~\uline{~~~~~~~~~~}~$\textasciitilde\textasciitilde\textasciitilde\textasciitilde\textasciitilde\textasciitilde\textasciitilde\textasciitilde\textasciitilde\textasciitilde\textasciitilde\textasciitilde$$200 \times 10 =$~\uline{~~~~~~~~~~}~ 
Options:
aoVal: A
content: $100$; $2000$ 
aoVal: B
content: $10$; $2000$ 
aoVal: C
content: $100$; $200$ 
Answer: A
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: $49, 38, 27, 16, 5,\dots$  Which number comes next in the sequence? 
Options:
aoVal: A
content: $$-14$$ 
aoVal: B
content: $$-4$$ 
aoVal: C
content: $$-11$$ 
aoVal: D
content: $$-5$$ 
aoVal: E
content: $$-6$$ 
Answer: E
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Given that:  ~$6\Omega3=6-5+4=5$;  ~$9\Omega5=9-8+7-6+5=7$;  $10\Omega6=10-9+8-7+6-5=3$  What is the value of~$12\Omega8$? 
Options:
aoVal: A
content: $$2$$ 
aoVal: B
content: $$4$$ 
aoVal: C
content: $$8$$ 
aoVal: D
content: $$10$$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Operations with New Definition
Source: 其它
Problem: Which of the following numbers can be divided by $2$, $4$ and $6$ exactly with no remainder? 
Options:
aoVal: A
content: $$32$$ 
aoVal: B
content: $$42$$ 
aoVal: C
content: $$48$$ 
aoVal: D
content: $$64$$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers
Source: 其它
Problem: Tony has $44$ shoes. He has $11$ more sneakers than boots. Which equation represents this situation? 
Options:
aoVal: A
content: $a+(a+11)=44$, where $a$ is the number of sneakers 
aoVal: B
content: $a+(a-11)=44$, where $a$ is the number of sneakers 
aoVal: C
content: $a+11a=44$, where $a$ is the number of boots 
aoVal: D
content: $a+(a-11)=44$, where $a$ is the number of boots 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation
Source: 其它
Problem: Based on the information provided in the chart above, which correlational coefficient best represents the relationship between the test score and time spent? 
Options:
aoVal: A
content: $$2$$ 
aoVal: B
content: $$0.25$$ 
aoVal: C
content: $$0.75$$ 
aoVal: D
content: $$-0.25$$ 
aoVal: E
content: $$-0.75$$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: A lizard is $20\rm cm$ in length.  The lizard can walk $1.5$ times its own length every second.  How long would it take the lizard to walk $36\rm m$? 
Options:
aoVal: A
content: $2\textasciitilde\rm minutes$ 
aoVal: B
content: $20\textasciitilde\rm seconds$ 
aoVal: C
content: $40\textasciitilde\rm seconds$ 
aoVal: D
content: $20\textasciitilde\rm minutes$ 
aoVal: E
content: $1\textasciitilde\rm minute$ 
Answer: A
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Two satellites are in circular orbits around Earth. Satellite A has speed $v\_{A}$. Satellite B has an orbital radius nine times that of satellite A. What is the speed of satellite B? 
Options:
aoVal: A
content: $v\_{A}$/9 
aoVal: B
content: $v\_{A}$/3 
aoVal: C
content: 3$v\_{A}$ 
aoVal: D
content: 9$v\_{A}$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: From 1990 to 2001, German currency included coins called $pfennigs$, worth 1 pfennig each, and $groschen$, worth 10 pfennigs each. Which equation represents the number of pfennig coins, $p$, and groschen coins, $g$, that have a combined value of $85$ pfennigs? 
Options:
aoVal: A
content: $p+g=85$ 
aoVal: B
content: $p+10g=85$ 
aoVal: C
content: $10p+g=85$ 
aoVal: D
content: $10(p+g)=85$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: To calculate the area of a rectangle with a length of $$7$$ and a breadth of $$5$$, we can use $$7\times 5$$. Therefore, the formula for the area of a rectangle can be summarised as:． 
Options:
aoVal: A
content: Area of rectangle $$=$$ breadth $$\times $$ breadth 
aoVal: B
content: Area of rectangle $$=$$ length $$\times $$ length 
aoVal: C
content: Area of rectangle $$=$$ length $$\times $$ breadth 
Answer: C
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Geometry Modules->Objects with Straight Sides->Knowing Graphs
Problem: The best way to write the product of $z$ and $-1$ is~\uline{~~~~~~~~~~}~. 
Options:
aoVal: A
content: $$-1$$ 
aoVal: B
content: z 
aoVal: C
content: $-1z$ 
aoVal: D
content: $-z$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution->Algebraic Expressions
Source: 其它
Problem: What is $$\frac{7}{9}+\frac{1}{9}$$? 
Options:
aoVal: A
content: $$\frac{7}{18}$$ 
aoVal: B
content: $$\frac{8}{18}$$ 
aoVal: C
content: $$\frac{8}{9}$$ 
aoVal: D
content: $$\frac{1}{9}$$ 
Answer: C
Analysis: $$N.A$$ 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Fractions
Source: 其它
Problem: （$$2017$$ Nanyang Primary School, First Semestral Examination, Primary Three, Question \#$$9$$)  Study the number pattern below.  $$\boxed{4168}$$,~ $$\boxed{4318}$$,~ $$\boxed{4468}$$,~ $$\boxed{4618}$$,~ $$\boxed{?}$$,~ $$\boxed{4918}$$  What is the missing number? 
Options:
aoVal: A
content: $$4518$$ 
aoVal: B
content: $$4718$$ 
aoVal: C
content: $$4768$$ 
aoVal: D
content: $$4868$$ 
Answer: C
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables->Patterns in Number Sequences
Problem: At a large conference of teachers from a variety of subjects, a random sample of 50 mathematics teachers attending the conference was selected. Among the selected mathematics teachers, 28 percent had taken one or more courses in statistics. For which of the following populations is 28 percent a reasonable estimate of the percentage of those who have taken one or more courses in statistics? 
Options:
aoVal: A
content: All mathematics teachers 
aoVal: B
content: All mathematics teachers who attended the conference 
aoVal: C
content: All mathematics teachers who have taken one or more courses in statistics 
aoVal: D
content: All teachers who attended the conference 
aoVal: E
content: All teachers 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: $876\times543$ 
Options:
aoVal: A
content: $475668$ 
aoVal: B
content: $475662$ 
aoVal: C
content: $475620$ 
aoVal: D
content: $475658$ 
Answer: A
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Mixed Operations
Problem: $36, 64, 80, 96, 108$  Which number is the only multiple of $8$ and $12$? 
Options:
aoVal: A
content: $$36$$ 
aoVal: B
content: $$64$$ 
aoVal: C
content: $$80$$ 
aoVal: D
content: $$96$$ 
aoVal: E
content: $$108$$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Find the next number in the sequence below.  8, 10, 6, 12, 4, 14, 2,~\uline{~~~~~~~~~~}~ 
Options:
aoVal: A
content: $$0$$ 
aoVal: B
content: $$10$$ 
aoVal: C
content: $$16$$ 
aoVal: D
content: $$18$$ 
aoVal: E
content: None of the above 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables->Arithmetic Sequences
Source: 其它
Problem: How many times bigger is $7\textasciitilde520\textasciitilde000$ than $75.2$? 
Options:
aoVal: A
content: $$$$1000$$$$ 
aoVal: B
content: 10 000 
aoVal: C
content: 100 000 
aoVal: D
content: 1 000 000 
aoVal: E
content: 75 200 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Basic Understanding of Decimals->Move the Decimal Point to Change a Number’s Value
Source: 其它
Problem: Calculate $$836 \times 99$$． 
Options:
aoVal: A
content: $$82764$$ 
aoVal: B
content: $$74404$$ 
aoVal: C
content: $$83764$$ 
aoVal: D
content: $$75404$$ 
Answer: A
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Multiplication and Division->Multiplication and Division of Whole Numbers->Multiplication out of the Multiplication Table
Problem: $$(A+B+C)\times 5=190$$. If $$C=11$$, what is $$(A+B)\div 3$$? 
Options:
aoVal: A
content: $$11$$ 
aoVal: B
content: $$27$$ 
aoVal: C
content: $$38$$ 
aoVal: D
content: $$40$$ 
Answer: B
Analysis: N/A.
Problem: $12, 1, 7, -3, 9, -6$  What is the difference between the range and median of these numbers? 
Options:
aoVal: A
content: $$4$$ 
aoVal: B
content: $$18$$ 
aoVal: C
content: $$14$$ 
aoVal: D
content: $$16$$ 
aoVal: E
content: $$12$$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Is~$\dfrac{2}{3}$~a rational number? 
Options:
aoVal: A
content: Yes 
aoVal: B
content: No 
aoVal: C
content: Not sure 
Answer: A
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Fractions
Source: 其它
Problem: Grace went out to the yard and called all her cats, hens and kids. All $25$ heads ran to her. There were three times as many legs as tails and more kids than cats. How many cats did Grace have? 
Options:
aoVal: A
content: $$2$$ 
aoVal: B
content: $$3$$ 
aoVal: C
content: $$5$$ 
aoVal: D
content: $$7$$ 
aoVal: E
content: $$9$$ 
Answer: A
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution->Algebraic Expressions
Source: 其它
Problem: Calculate: $$0.3\overset{\centerdot }{\mathop{2}}+0.4\overset{\centerdot }{\mathop{1}}=$$~\uline{~~~~~~~~~~}~． 
Options:
aoVal: A
content: $$0.\dot{7}\dot{3}$$ 
aoVal: B
content: $$0.7\dot{3}$$ 
aoVal: C
content: $$0.73$$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Recurring Decimals
Problem: What is the sum of the first $20$ digits in the decimal part of $0.\dot{1}2\dot{3}$? 
Options:
aoVal: A
content: $$36$$ 
aoVal: B
content: $$37$$ 
aoVal: C
content: $$38$$ 
aoVal: D
content: $$39$$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Recurring Decimals
Source: 其它
Problem: $(2)\textbackslash{} 1.5\div3=$ 
Options:
aoVal: A
content: $$0.5$$ 
aoVal: B
content: $$5$$ 
aoVal: C
content: $$50$$ 
aoVal: D
content: $$0.05$$ 
Answer: A
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Multiplication and Division of Decimals
Source: 其它
Problem: lf $$X:Y=2:7$$ and $$Z:X=4:3$$, what is $$X+Z:Y$$? 
Options:
aoVal: A
content: $$2:3$$ 
aoVal: B
content: $$2:7$$ 
aoVal: C
content: $$3:2$$ 
aoVal: D
content: $$3:4$$ 
Answer: A
Analysis: N/A.　 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Ratios and Proportions->Ratio
Problem: Which of the following does not contain a constant? 
Options:
aoVal: A
content: $3x-2$ 
aoVal: B
content: $2x+\frac{\pi}{2}$ 
aoVal: C
content: $$4a+\frac{3}{b}$$ 
aoVal: D
content: $51$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution->Algebraic Expressions
Source: 其它
Problem: $$2+0+0+8=$$． 
Options:
aoVal: A
content: $$0$$ 
aoVal: B
content: $$6$$ 
aoVal: C
content: $$10$$ 
aoVal: D
content: $$16$$ 
Answer: C
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Addition and Subtraction ->Addition of Whole Numbers->Addition in Horizontal Form
Problem: Ms. Costas owns a business with nine other employees. Ms. Costas\textquotesingle s annual salary is \textbackslash$\textbackslash{} 90,000. Her manager\textquotesingle s salary is \textbackslash$\textbackslash60,000. Of her other employees, three earn \textbackslash$\textbackslash{} 25,000 each and five earn \textbackslash$\textbackslash{} 15,000 each. The range of this distribution is 
Options:
aoVal: A
content: $ 75,000 
aoVal: B
content: $ 50,000 
aoVal: C
content: $ 25,000 
aoVal: D
content: $ 20,000 
aoVal: E
content: $ 15,000 
Answer: A
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: $\frac{3}{14}+\frac{4}{14}=$~\uline{~~~~~~~~~~}~. (Simplify your answer) 
Options:
aoVal: A
content: $\frac{7}{28}$ 
aoVal: B
content: $\frac{1}{4}$ 
aoVal: C
content: $\frac{7}{14}$ 
aoVal: D
content: $\frac{1}{2}$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Study the pattern below carefully and find the missing number.  $$ 0 7\textasciitilde1 5$$, $$ 0 7\textasciitilde3 5$$, $$ 0 8\textasciitilde{} 0 5$$, $$ 0 8\textasciitilde4 5$$, $$ 0 9\textasciitilde3 5$$,~\uline{~~~~~~~~~~}~ 
Options:
aoVal: A
content: $$ 0 9\textasciitilde5 5$$ 
aoVal: B
content: $$ 0 9\textasciitilde7 5$$ 
aoVal: C
content: $$ 1 0\textasciitilde3 5$$ 
aoVal: D
content: $$ 1 0\textasciitilde4 5$$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables->Patterns in Number Sequences
Problem: $$(21\times55)+20=1175$$ is a correct calculation.  Which one of the following calculations is INCORRECT? 
Options:
aoVal: A
content: $$1175-20=21\times55$$ 
aoVal: B
content: $$21\times (55+20)=1175$$ 
aoVal: C
content: $$20=1175-(21\times55)$$ 
aoVal: D
content: $$(21\times55)+21=1176$$ 
Answer: B
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Mixed Operations
Problem: Nina and Nora went to buy some stationeries. Nina bought $4$ notebooks, $5$ rulers and $3$ pens. Nora bought $6$ notebooks, $7$ rulers and $1$ pen. How many more pieces of stationeries did Nora buy than Nina? 
Options:
aoVal: A
content: $$1$$ 
aoVal: B
content: $$2$$ 
aoVal: C
content: $$3$$ 
aoVal: D
content: $$4$$ 
aoVal: E
content: $$5$$ 
Answer: B
Analysis: N/A 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: $2$ potatoes, $3$ peas and $1$ tomato together weigh $18$ lbs. One pea and one tomato together weigh $8$ lbs. $2$ potatoes and $1$ pea together weigh $2$ lbs more than one pea and one tomato weigh together. Each potato weighs the same and each pea weigh the same. How much does one potato weigh? 
Options:
aoVal: A
content: $2$ lbs 
aoVal: B
content: $3$ lbs 
aoVal: C
content: $4$ lbs 
aoVal: D
content: $5$ lbs 
aoVal: E
content: $6$ lbs 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution
Source: 其它
Problem: The ones digit of $5^{2023}+11^{2023}$ is~\uline{~~~~~~~~~~}~. 
Options:
aoVal: A
content: $$3$$ 
aoVal: B
content: $$4$$ 
aoVal: C
content: $$5$$ 
aoVal: D
content: $$6$$ 
aoVal: E
content: $$7$$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Power->Computing Powers->Exponentiation of Powers
Source: 其它