math-eval/TAL-SCQ5K huggingface dataset:
Problem: The best estimate for $$48\times 732$$ is . 
Options:
aoVal: A
content: $$40\times 700$$ 
aoVal: B
content: $$40\times 800$$ 
aoVal: C
content: $$50\times 700$$ 
aoVal: D
content: $$50\times 800$$ 
Answer: C
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Comparing, Ordering and Estimating->Estimating Large Numbers
Problem: What is $$16-0.16$$? 
Options:
aoVal: A
content: $$16.16$$ 
aoVal: B
content: $$15.84$$ 
aoVal: C
content: $$15.94$$ 
aoVal: D
content: $$15.4$$ 
aoVal: E
content: $$14.4$$ 
Answer: B
Analysis: N/A.　 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Addition and Subtraction of Decimals->Subtraction of Decimals
Problem: Which of the following inequalities is always true? 
Options:
aoVal: A
content: $x\geq60$ 
aoVal: B
content: $10\textgreater-10$ 
aoVal: C
content: $x\textless x-10$ 
aoVal: D
content: $3x\textgreater3x$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Inequalities
Source: 其它
Problem: Which of these equals $1$． 
Options:
aoVal: A
content: $$1^{2}+1^{2}$$ 
aoVal: B
content: $$1^{2}-1^{2}$$ 
aoVal: C
content: $$2^{2}-1^{2}$$ 
aoVal: D
content: $$3^{2}-2^{2}$$ 
aoVal: E
content: $$2^{2}\div2^{2}$$ 
Answer: E
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Power->Understanding the meaning of Power
Problem: Given that $$(21\times55) + 20=1175$$, one of the following is incorrect. 
Options:
aoVal: A
content: $$1175-20=21\times55$$ 
aoVal: B
content: $$21\times (55+20)=1175$$ 
aoVal: C
content: $$1175=20+(21\times55)$$ 
aoVal: D
content: $$20=1175-(21\times55)$$ 
aoVal: E
content: $$(21\times55)+21=1176$$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Mixed Operations
Problem: The breadth of a rectangular bookmark is $9$ cm. It\textquotesingle s length is $3$ times its breadth. What is the area of the bookmark? 
Options:
aoVal: A
content: 27 cm\textsuperscript{2} 
aoVal: B
content: 81 cm\textsuperscript{2} 
aoVal: C
content: 162 cm\textsuperscript{2} 
aoVal: D
content: 243 cm\textsuperscript{2} 
Answer: D
Analysis: $$N.A$$ 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Unit Conversion->Converting between Units of Area
Source: 其它
Problem: A number is formed by $9$ millions, $7$ ten thousands, $5$ thousands, $8$ tens, $2$ hundreds and $3$ ones. What number is it? 
Options:
aoVal: A
content: $$975823$$ 
aoVal: B
content: $$9075823$$ 
aoVal: C
content: $$987532$$ 
aoVal: D
content: $$9075283$$ 
aoVal: E
content: $$9705283$$ 
Answer: D
Analysis: N/A 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers
Source: 其它
Problem: The manager of a public swimming pool wants to compare the effectiveness of two laundry detergents, Detergent A and Detergent B, in cleaning the towels that are used daily. As each dirty towel is turned in, it is placed into the only washing machine on the premises. When the washing machine contains 20 towels, the manager flips a coin to determine whether Detergent A or Detergent B will be used for that load. The cleanliness of the load of towels is rated on a scale of 1 to 10 by a person who does not know which detergent was used. The manager continues this experiment for many days. Which of the following best describes the manager's study? 
Options:
aoVal: A
content: A completely randomized design 
aoVal: B
content: A randomized block design with Detergent A and Detergent B as blocks 
aoVal: C
content: A randomized block design with the washing machine as the block 
aoVal: D
content: A matched-pairs design with Detergent A and Detergent B as the pair 
aoVal: E
content: An observational study 
Answer: A
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Let P = price, MR = marginal revenue,MC = marginal cost, and ATC = average totalcost. In monopolistic competition, which of thefollowing most accurately describes the long-runequilibrium conditions for a firm? 
Options:
aoVal: A
content: P \textgreater{} ATC, MR = MC, and P \textgreater{} MC 
aoVal: B
content: P \textgreater{} ATC, MR \textgreater{} MC, and P = MC 
aoVal: C
content: P = ATC, MR = MC, and P \textgreater{} M 
aoVal: D
content: P = ATC, MR = MC, and P = MC 
aoVal: E
content: P = ATC, MR \textgreater{} MC, and P \textgreater{} MC 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Fractions
Source: 其它
Problem: The mass of the Earth is~$5.97\times10^{24}kg$. The Moon, whose center is~$3.84\times10^{8}m$~from the Earth\textquotesingle s center, has mass~$7.35\times10^{22}kg$. Which of the following is the best estimate of the gravitational force of the Earth on the Moon? 
Options:
aoVal: A
content: $10^{39}N$ 
aoVal: B
content: $10^{29}N$ 
aoVal: C
content: $10^{19}N$ 
aoVal: D
content: $10^{9}N$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables
Source: 其它
Problem: $25+26+27+\dots+97+98+100=$~\uline{~~~~~~~~~~}~. 
Options:
aoVal: A
content: $$5050$$ 
aoVal: B
content: $$4750$$ 
aoVal: C
content: $$5350$$ 
aoVal: D
content: $$300$$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables->Arithmetic Sequences
Source: 其它
Problem: It took Jimmy $1$ hour and $40$ minutes to do his homework. His sister, Jemima, took three times as long. How long did she take? 
Options:
aoVal: A
content: $5$ hours 
aoVal: B
content: $4$ hours $20$ minutes 
aoVal: C
content: $3$ hours $40$ minutes 
aoVal: D
content: $4$ hours $20$ minutes 
aoVal: E
content: $5$ hours $30$ minutes 
Answer: A
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Unit Conversion->Converting between Units of Time
Problem: Find the value of $n$ such that $9^{2n-3}=27^{n+1}$.  $\textasciitilde$ 
Options:
aoVal: A
content: $$0$$ 
aoVal: B
content: $$3$$ 
aoVal: C
content: $$6$$ 
aoVal: D
content: $$9$$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: $$434-30 - 4=$$ ． 
Options:
aoVal: A
content: $$217$$ 
aoVal: B
content: $$400$$ 
aoVal: C
content: $$327$$ 
aoVal: D
content: $$323$$ 
Answer: B
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Addition and Subtraction
Problem: A rectangle has a perimeter of $36\rm cm$. Which could be the area of the rectangle? （The length and width are both whole numbers） 
Options:
aoVal: A
content: $12\text{cm}^{2}$ 
aoVal: B
content: $56\text{cm}^{2}$ 
aoVal: C
content: $108\text{cm}^{2}$ 
aoVal: D
content: $120\text{cm}^{2}$ 
aoVal: E
content: $16\text{cm}^{2}$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: [PhysicsBowl question revised] A car and a truck are both traveling with a constant speed of 30 m/s. The car is 20 m behind the truck. The truck driver suddenly applies his brakes, causing the truck to slow to a stop at the constant rate of 3 m/s². 3 seconds later, the driver of the car applies their brakes and just manages to avoid a rear-end collision. Determine the constant rate at which the car slowed. 
Options:
aoVal: A
content: 9.23 m/s² 
aoVal: B
content: 10.33 m/s² 
aoVal: C
content: 11.23 m/s² 
aoVal: D
content: 11.93 m/s² 
Answer: A
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Operations with New Definition->Operations with New Definition in Flow Charts
Source: 其它
Problem: What is the value of $\left( 1+\dfrac{1}{1}\right)\left( 1+\dfrac{1}{2}\right)\left( 1+\dfrac{1}{3}\right)\left( 1+\dfrac{1}{4}\right)\left( 1+\dfrac{1}{5}\right)\left( 1+\dfrac{1}{6}\right)$? 
Options:
aoVal: A
content: $\dfrac{7}{6}$ 
aoVal: B
content: $\dfrac{4}{3}$ 
aoVal: C
content: $\dfrac{7}{2}$ 
aoVal: D
content: $$7$$ 
aoVal: E
content: $$8$$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Given that $$46\times658=30268$$. What is $$46 \times329$$? 
Options:
aoVal: A
content: $$15034$$ 
aoVal: B
content: $$15234$$ 
aoVal: C
content: $$16134$$ 
aoVal: D
content: $$15134$$ 
aoVal: E
content: $$15234$$ 
Answer: D
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: Which one is the smallest? 
Options:
aoVal: A
content: $$\frac{6}{7}$$ 
aoVal: B
content: $$\frac{7}{8}$$ 
aoVal: C
content: $$\frac{8}{9}$$ 
aoVal: D
content: $$\frac{9}{10}$$ 
Answer: A
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Comparing, Ordering and Estimating->Comparing and Ordering
Source: 其它
Problem: Caroline decided to add up all the numbers from $1$ to $50$.  What total did she get? 
Options:
aoVal: A
content: $$1275$$ 
aoVal: B
content: $$655$$ 
aoVal: C
content: $$765$$ 
aoVal: D
content: $$895$$ 
aoVal: E
content: $$1000$$ 
Answer: A
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables->Arithmetic Sequences->Sum of Terms in Arithmetic Sequences
Problem: Mary started from the number $$15$$ and counted back in steps of $$6$$.  Which of these numbers did she count? 
Options:
aoVal: A
content: $$-4$$ 
aoVal: B
content: $$-3$$ 
aoVal: C
content: $$-2$$ 
aoVal: D
content: $$-1$$ 
aoVal: E
content: $$2$$ 
Answer: B
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables->Arithmetic Sequences->Concepts of Arithmetic Sequences
Problem: A 1-kg object is moving with a velocity of 6 m/s to the right. It collides and sticks to a 2-kg object moving with a velocity of 3 m/s in the same direction. How much kinetic energy was lost in the collision? 
Options:
aoVal: A
content: $$1.5J$$ 
aoVal: B
content: $$2J$$ 
aoVal: C
content: $$2.5J$$ 
aoVal: D
content: $$3J$$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Find the number A such that the following statement is true  $$7 \times A=3 \times 8 + 4 \times8$$ 
Options:
aoVal: A
content: $$3$$ 
aoVal: B
content: $$4$$ 
aoVal: C
content: $$5$$ 
aoVal: D
content: $$8$$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Which of the following expression is the simplest? 
Options:
aoVal: A
content: $2x+3x+1$ 
aoVal: B
content: $4+(x+2)$ 
aoVal: C
content: $2a-(3b+c) 
aoVal: D
content: $$a+b+20$$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution->Algebraic Expressions
Source: 其它
Problem: $36\div0.4=$~\uline{~~~~~~~~~~}~. 
Options:
aoVal: A
content: $$0.09$$ 
aoVal: B
content: $$0.9$$ 
aoVal: C
content: $$9$$ 
aoVal: D
content: $$90$$ 
aoVal: E
content: $$900$$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: What is the value of~$1+3+5+7+\cdot\cdot\cdot+2017+2019-2-4-6-\cdot\cdot\cdot-2016-2018?$? 
Options:
aoVal: A
content: $$-1010$$ 
aoVal: B
content: $$-1009$$ 
aoVal: C
content: $$1008$$ 
aoVal: D
content: $$1009$$ 
aoVal: E
content: $$1010$$ 
Answer: E
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables->Arithmetic Sequences
Source: 其它
Problem: What is the missing denominator?  $\dfrac{6}{\boxed{?}}$$$=\frac{9}{12}$$ 
Options:
aoVal: A
content: $$15$$ 
aoVal: B
content: $$9$$ 
aoVal: C
content: $$8$$ 
aoVal: D
content: $$4$$ 
Answer: C
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Fractions
Overseas In-curriculum->Knowledge Point->Knowing Numbers->Fractions->Basic Properties of Fractions->Using Common Factors to Simplify Fractions
Problem: $$215 \times 112=$$． 
Options:
aoVal: A
content: $$24800$$ 
aoVal: B
content: $$24008$$ 
aoVal: C
content: $$24080$$ 
aoVal: D
content: $$24100$$ 
aoVal: E
content: $$100002900010$$ 
Answer: C
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: When calculating $0.25\times10$,~each digit of $0.25$ moves~~\uline{~~~~~~~~~~}~place(s) to the~\uline{~~~~~~~~~~}~, and we obtain the result~~\uline{~~~~~~~~~~}~. 
Options:
aoVal: A
content: one; left; $02.5$ 
aoVal: B
content: two; left; $25$ 
aoVal: C
content: one; right; $.025$ 
aoVal: D
content: one; left; $2.5$ 
aoVal: E
content: one; right; $0.025$ 
Answer: D
Analysis: N/A 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: A rectangle has a perimeter of $36\rm cm$. Which could be the area of the rectangle? 
Options:
aoVal: A
content: $12\text{cm}^{2}$ 
aoVal: B
content: $56\text{cm}^{2}$ 
aoVal: C
content: $108\text{cm}^{2}$ 
aoVal: D
content: $120\text{cm}^{2}$ 
aoVal: E
content: $16\text{cm}^{2}$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: $0.6\times\square=0.48$  What number needs to go in the box to make the statement correct? 
Options:
aoVal: A
content: $$0.8$$ 
aoVal: B
content: $$8$$ 
aoVal: C
content: $$80$$ 
aoVal: D
content: $$0.08$$ 
aoVal: E
content: $$0.008$$ 
Answer: A
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: If $3^{}x=9$, then $2^{3x}=$ ?  $\textasciitilde$ 
Options:
aoVal: A
content: $$16$$ 
aoVal: B
content: $$64$$ 
aoVal: C
content: $$128$$ 
aoVal: D
content: $2^{9}$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Which of the following groups has equivalent ratios? 
Options:
aoVal: A
content: $2$ to $5$, $\frac{0.5}{5}$ 
aoVal: B
content: $\frac{2}{5}$, $2$ to $15$ 
aoVal: C
content: $$\frac{2}{5}$$, $2:5$ 
aoVal: D
content: $2:5$, $\frac{5}{2}$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Ratios and Proportions
Source: 其它
Problem: For number $$360$$, what is its exponential form? 
Options:
aoVal: A
content: $$2^{2}\times 3^{2}\times 5$$ 
aoVal: B
content: $$2^{2}\times 3^{2}\times 5^{2}$$ 
aoVal: C
content: $$2^{2}\times 3^{3}\times 5$$ 
aoVal: D
content: $$2^{3}\times 3^{2}\times 5$$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Power->Computing Powers->Exponentiation of Powers
Source: 其它
Problem: $$5-4+3-2+1=$$? 
Options:
aoVal: A
content: $$1$$ 
aoVal: B
content: $$2$$ 
aoVal: C
content: $$3$$ 
aoVal: D
content: $$4$$ 
aoVal: E
content: $$0$$ 
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: An empty jug has a capacity of $3.5$ litres.  Ben has a cup that holds $400$ ml when full.  Ben fills his cup up and pours the water into the jug.  He does this $8$ times in total.  How much more water could fit in the jug? 
Options:
aoVal: A
content: $100\rm ml$ 
aoVal: B
content: $200\rm ml$ 
aoVal: C
content: $300\rm ml$ 
aoVal: D
content: $400\rm ml$ 
aoVal: E
content: $500\rm ml$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Unit Conversion->Converting between Units of Volume and Capacity
Source: 其它
Problem: Which of these numbers is less than its reciprocal? 
Options:
aoVal: A
content: $$-2$$ 
aoVal: B
content: $$-1$$ 
aoVal: C
content: $$0$$ 
aoVal: D
content: $$1$$ 
aoVal: E
content: $$2$$ 
Answer: A
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: What does the digit $$7$$ in $$50.763$$ stand for? 
Options:
aoVal: A
content: $$7$$ ones 
aoVal: B
content: $$7$$ tenths 
aoVal: C
content: $$7$$ hundredths 
aoVal: D
content: $$7$$ thousandths 
Answer: B
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Basic Understanding of Decimals
Problem: Tom will start writing his homework on Wednesday. He is going to spend $3$ days on his homework. What day of the week will it be when he finish the homework? 
Options:
aoVal: A
content: Monday 
aoVal: B
content: Tuesday 
aoVal: C
content: Thursday 
aoVal: D
content: Friday 
aoVal: E
content: Saturday 
Answer: D
Analysis: N/A 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: In the sequence which begins $$2$$, $$3$$, $$5$$, $$10$$, \ldots{} each number after the second is the sum of all the previous numbers in the sequence.  What is the $$10^{\text{th}}$$ number in the sequence? 
Options:
aoVal: A
content: $$47$$ 
aoVal: B
content: $$170$$ 
aoVal: C
content: $$640$$ 
aoVal: D
content: $$1280$$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables->Patterns in Number Sequences->The Fibonacci Sequences (Rabbit Sequences)
Problem: $$431+345=$$． 
Options:
aoVal: A
content: $$758$$ 
aoVal: B
content: $$767$$ 
aoVal: C
content: $$776$$ 
aoVal: D
content: $$785$$ 
Answer: C
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Addition and Subtraction
Problem: Which of the following calculations is correct? 
Options:
aoVal: A
content: $${(\frac{1}{2})}^{2}-{(\frac{1}{2})}^{3}=\frac{1}{4}$$ 
aoVal: B
content: $$a^{100}\cdot a^{100}=2a^{100}$$ 
aoVal: C
content: $$\frac{3^{1080}}{3^{1080}}=0$$ 
aoVal: D
content: $$3^{44}\cdot 3^{33}=3^{77}$$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Power->Computing Powers->Exponentiation of Powers
Source: 其它
Problem: A box holds $150$ carrier bags. How many boxes are required for $6450$ carrier bags? 
Options:
aoVal: A
content: $$37$$ 
aoVal: B
content: $$41$$ 
aoVal: C
content: $$43$$ 
aoVal: D
content: $$35$$ 
aoVal: E
content: $$49$$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: A 95 percent confidence interval for the mean time, in minutes, for a volunteer fire company to respond to emergency incidents is determined to be (2.8, 12.3). Which of the following is the best interpretation of the interval? 
Options:
aoVal: A
content: Five percent of the time, the time for response is less than 2.8 minutes or greater than 12.3 minutes. 
aoVal: B
content: The probability is 0.95 that a randomly selected time for response will be between 2.8 minutes and 12.3 minutes. 
aoVal: C
content: Ninety-five percent of the time the mean time for response is between 2.8 minutes and 12.3 minutes. 
aoVal: D
content: We are 95\% confident that the mean time for response is between 2.8 minutes and 12.3 minutes. 
aoVal: E
content: We are 95\% confident that a randomly selected time for response will be between 2.8 minutes and 12.3 minutes. 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: What is $$y$$ if $$56y=728$$?  Choose the answer. 
Options:
aoVal: A
content: $$13$$ 
aoVal: B
content: $$12$$ 
aoVal: C
content: $$11$$ 
aoVal: D
content: $$10$$ 
aoVal: E
content: $$9$$ 
Answer: A
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Linear Equations with one Variable
Problem: Which is the only number that is a factor of $48$ and a multiple of $8$? 
Options:
aoVal: A
content: $$2$$ 
aoVal: B
content: $$4$$ 
aoVal: C
content: $$6$$ 
aoVal: D
content: $$12$$ 
aoVal: E
content: $$48$$ 
Answer: E
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: It takes 3 metres of cloth to make a suit. Now we have 26 metres of cloth. How many suits can we make?~\uline{~~~~~~~~~~}~ 
Options:
aoVal: A
content: $$4$$ 
aoVal: B
content: $$2$$ 
aoVal: C
content: $$9$$ 
aoVal: D
content: $$8$$ 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Multiplication and Division->Division of Whole Numbers->Division with Remainders
Source: 其它
Problem: Judy writes a series of numbers: $3, 6, 9, 12, 15, \cdots 27.$ Lily follows the pattern and writes the next number after Judy. What number will Lily write? 
Options:
aoVal: A
content: $$18$$ 
aoVal: B
content: $$24$$ 
aoVal: C
content: $$28$$ 
aoVal: D
content: $$29$$ 
aoVal: E
content: $$30$$ 
Answer: E
Analysis: N/A 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Which of the following is equivalent to $0.5\dot{6}\dot{7}$? 
Options:
aoVal: A
content: $0.567567567\dots$ 
aoVal: B
content: $0.5676767\dots$ 
aoVal: C
content: $0.56777\dots$ 
aoVal: D
content: $0.567056705670\dots$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Recurring Decimals
Source: 其它
Problem: Find the sum of $$\frac{3}{5}$$ and $$\frac{1}{3}$$? 
Options:
aoVal: A
content: $$\frac{4}{8}$$ 
aoVal: B
content: $$\frac{2}{2}$$ 
aoVal: C
content: $$\frac{4}{15}$$ 
aoVal: D
content: $$\frac{14}{15}$$ 
Answer: D
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Fractions->Operations of Fractions
Problem: Choose the correct statement. 
Options:
aoVal: A
content: $$0.4\textgreater4\textbackslash\%$$ 
aoVal: B
content: $$0.4=4\textbackslash\%$$ 
aoVal: C
content: $$0.4\textless{}4\textbackslash\%$$ 
Answer: A
Analysis: N/A 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Fractions->Basic Understanding of Fractions->Converting Between Fractions, Percentage and Decimals
Source: 其它
Problem: Tina thinks of a number.  She multiplies it by five, then add two, and doubles the result.  Her final result is $54$.  With which number did Tina start? 
Options:
aoVal: A
content: $$3$$ 
aoVal: B
content: $$4$$ 
aoVal: C
content: $$5$$ 
aoVal: D
content: $$6$$ 
aoVal: E
content: $$7$$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: $$4$$ sevens $$=$$． 
Options:
aoVal: A
content: $$11$$ 
aoVal: B
content: $$28$$ 
aoVal: C
content: $$35$$ 
aoVal: D
content: $$47$$ 
Answer: B
Analysis: N/A. 
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Multiplication and Division
Problem: Martin exercises for $35$ minutes every day.  For how long does Martin exercise every week? 
Options:
aoVal: A
content: $2\rm h35\rm min$ 
aoVal: B
content: $3\rm h45\rm min$ 
aoVal: C
content: $4\rm h5\rm min$ 
aoVal: D
content: $4\rm h15\rm min$ 
aoVal: E
content: $1\rm h55\rm min$ 
Answer: C
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它
Problem: Luna asks her grandmother how old she is, and her grandmother replies: "if you multiply your age by 5 and then add by 7, then you would be my age." Luna is 12 years old. Which of the following is an equation that correctly represents Luna\textquotesingle s grandmother\textquotesingle s age? Let $x$ represent grandmother\textquotesingle s age. 
Options:
aoVal: A
content: $x = 12 \times 5 - 7$ 
aoVal: B
content: $x ~= 12 \times 5 + 7$ 
aoVal: C
content: $x + 1= 12 \times 5 + 7$ 
aoVal: D
content: $ 12 \times 5 + 7 - 1$ 
Answer: B
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation
Source: 其它
Problem: Modern Earth atmosphere is composed of 78.08\% nitrogen, 20.95\% oxygen, and 0.93\% argon. Which of these gases was also abundant in the primordial Earth atmosphere? 
Options:
aoVal: A
content: nitrogen 
aoVal: B
content: oxygen 
aoVal: C
content: argon 
aoVal: D
content: none of the three 
Answer: D
Knowledge points: Overseas Competition->Knowledge Point->Calculation Modules
Source: 其它