dataset_version
timestamp[s]
queId
stringlengths
32
32
difficulty
stringclasses
5 values
qtype
stringclasses
1 value
problem
stringlengths
6
2.89k
knowledge_point_routes
sequence
2023-07-07T00:00:00
ce53d4f8e44943daa525defbe2c3fe07
1
short_answer
Last season a football team won~$\dfrac{2}{5}$~of their matches and drew $\dfrac{7}{20}$~of their matches. They lost $10$ matches. They were awarded $3$ points for a win, $1$ point for a draw and no points for a loss. How many points did this team have at the end of the season?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Solving Problems Involving Fractions and Percentages->Finding the Base" ]
2023-07-07T00:00:00
5cbbe117fdc24fd7b9a7955d77adea5e
1
short_answer
Johnny is working on his math homework. ~\uline{~~~~~~~~~~}~$$\div $$ $4$ = $9$ R $2$ The following is his solution: $9\times2$ = $18$ $18+4=22$ Answer = $22$ Is his answer correct? If not, circle out his error and write out the correct working.
[ "Overseas Competition->Knowledge Point->Number Theory Modules->Remainder Problems->Questions involving Divisions with Remainders" ]
2023-07-07T00:00:00
87ae32b6102741f1b5918d4117319755
1
short_answer
40-38+36-34+32-30+$\cdots$+4-2
[ "Overseas Competition->Knowledge Point->Calculation Modules" ]
2023-07-07T00:00:00
b7a661c038da48b0a38328c3af3f8724
1
short_answer
Sophie has $13$ T-shirts, and she has $5$ more T-shirts than her sister. How many T-shirts does her sister have?
[ "Overseas Competition->Knowledge Point->Word Problem Modules" ]
2023-07-07T00:00:00
c76c8db1463743adbd53ed8b96efcbd5
1
short_answer
Anokhi buys $$4$$ chocolate bars at $$75$$p each and $$3$$ pens at $$95$$p each. How much change does she receive from a £$$10$$ note?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Unitary Method Problems->Finding the Total Value using Unitary Method" ]
2023-07-07T00:00:00
162b4dfb6c85480ab3fa57a6c7291de2
1
short_answer
A TV costs $4200$ dollars. The store lowered its price by $$10 \%$$ at first, then lower the price by $$20 \%$$ later. What is the price of the TV now?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Solving Problems Involving Fractions and Percentages" ]
2023-07-07T00:00:00
0eb584e3f8a14f75a374964af3070d71
2
short_answer
There are $$8$$ numbers and their mean is $$555$$, the mean of the first $$3$$ numbers is $$296$$ less than the mean of the last $$5$$ numbers. What is the mean of the last $$5$$ numbers?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Average Problems " ]
2023-07-07T00:00:00
cf531f6537954b0c9eb9ebd7c0cea500
1
short_answer
Sophia is counting by twos. She starts at 2 and crosses it out. Each time she counts to a new multiple of 2, she crosses it out on her hundred chart. How many multiples of twos would she have crossed out in her chart when she finishes counting by twos to 100? insert pic
[ "Overseas Competition->Knowledge Point->Number Theory Modules->Odd and Even Numbers" ]
2023-07-07T00:00:00
fbdb47198fdf4306a9847b12bf333226
2
short_answer
Vicky has 99 stickers. She has 3 less than 6 times as many stickers as Timmy. Kevin has 32 more stickers than Timmy. How many stickers does Kevin have?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Applying of Multiplication and Division" ]
2023-07-07T00:00:00
7f70404ac5f74504a1cfebab700ec8a5
2
short_answer
Five people can build a bridge in $15$ days. How many more people are needed to build the bridge in $5$ days? (Assume that all people work at the same rate)
[ "Overseas Competition->Knowledge Point->Calculation Modules->Ratios and Proportions->Proportions->Proportion and Inverse Proportion" ]
2023-07-07T00:00:00
70f5ff9ddd8c4370b2cfb94de5a970ab
1
short_answer
There are $5$ footballs in one basket. How many footballs are there in $7$ baskets?
[ "Overseas Competition->Knowledge Point->Calculation Modules" ]
2023-07-07T00:00:00
b88c740d29b747828949ce062283a33f
1
short_answer
There are $$20$$ children in a queue. Counting from front to back Pip is the $$3^{\rm rd}$$ in line, Bud is behind Pip and there are $$5$$ children between Pip and Bud. In which position is Bud from the end of the queue?
[ "Overseas Competition->Knowledge Point->Counting Modules->Law of Addition and Multiplication->Queuing Problems" ]
2023-07-07T00:00:00
cd9d85bed1d74e6cb214e001f0a094e3
3
short_answer
Rasidah had $$$48$$ less than Chai Seng. Rasidah spent~$\tfrac{3}{5}$~of her money and Chai Seng spent~$\tfrac{6}{7}$~of his money. In the end, Chai Seng had~$\tfrac{1}{2}$~as much money left as Rasidah. Find the amount of money Rasidah had at first.
[ "Overseas Competition->Knowledge Point->Number Theory Modules->Prime Factorization->Applying Prime Factorization->Equalizing products by Grouping" ]
2023-07-07T00:00:00
312d3c547d294d18b1e263e554e02de1
2
short_answer
Isaac is 53 years old. His mother is 81. How many years ago was Isaac\textquotesingle s age one third of his mother\textquotesingle s age then?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Age Problems" ]
2023-07-07T00:00:00
21b6e23a4408430bbf4acc393c601243
2
short_answer
(UK Emanuel School Entrance Examination Year $7$ Entry Question \#$28$) When my grandma\textquotesingle s age is divided by $4$ there is a remainder of $2$. when her age divided by $5$ there is a remainder of $3$. But when her age divided by $9$ there is a remainder of $6$. How old is my grandma?
[ "Overseas Competition->Knowledge Point->Number Theory Modules->Remainder Problems->Chinese Remainder Theorem->Chinese Remainder Theorem with Constant Remainder" ]
2023-07-07T00:00:00
df16de37f8d64768a0f4c9b79d33d31e
1
short_answer
$$\approx $$ means approximately equal to. Given that $$1$$ kilogram ($$\text{kg}$$)$$\approx $$$$2.2$$ pounds ($$\text{lb}$$), convert $$154\text{lb}$$ to $$\text{kg}$$.
[ "Overseas Competition->Knowledge Point->Calculation Modules->Unit Conversion->Converting between Units of Weight" ]
2023-07-07T00:00:00
ecbf3f006c6147d3aaf09f392d5a387e
1
short_answer
Observe the following: $$1\oplus 5=1+2+3+4-5$$ $$3\oplus 8=3+4+5+6+7-8$$ $$5\oplus 9=5+6+7+8-9$$ Find the value of $$\left( 5\oplus 10 \right)-\left( 4\oplus 9 \right)$$.
[ "Overseas Competition->Knowledge Point->Calculation Modules->Operations with New Definition" ]
2023-07-07T00:00:00
35167ef06b9844828843e2c87be8c949
1
short_answer
Calculate: $$35+18+26+22-16+25=$$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers" ]
2023-07-07T00:00:00
791c504e967a47a3a7621807a53b47c8
1
short_answer
Elena is $$500$$ metres behind her cat. Elena can run at $$8$$ m/s and her cat can only run at $$3$$ m/s. How long does Elena take to catch up with her cat?
[ "Overseas Competition->Knowledge Point->Distance Word Problems->Distance Word Problems on Straight Road", "Overseas Competition->Knowledge Point->Word Problem Modules" ]
2023-07-07T00:00:00
1754095281684c188e6216f11d4caff3
1
short_answer
Use the digits $$1$$, $$2$$, and $$3$$ to make three$$-$$digit numbers without repeating digits. How many three$$-$$digit numbers can be formed?
[ "Overseas Competition->Knowledge Point->Counting Modules->Permutations and Combinations->Combinations->Basic Operations of Combinations" ]
2023-07-07T00:00:00
83dbbf7b91904b22b7e2f875718cafe1
1
short_answer
A prime number plus $$6$$ or minus $$6$$, the resulting number is still a prime number. How many such prime numbers are there within $$20$$?
[ "Overseas Competition->Knowledge Point->Number Theory Modules->Prime and Composite Numbers" ]
2023-07-07T00:00:00
6a3017d012a04a6c9f0ed680b9bf9a09
1
short_answer
Write down the next number in this sequence $8, 20, 31, 41, 50,\cdots \cdots $.
[ "Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables->Patterns in Number Sequences->Double Arithmetic Sequences" ]
2023-07-07T00:00:00
3c78e8e403284c9486c1fe552fdb5004
0
short_answer
$$58-(6x+2)=20$$. $x=$.
[ "Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Linear Equations with one Variable" ]
2023-07-07T00:00:00
9f5fc79092f442618d0ed912989d3195
1
short_answer
Mike wrote the digits $$1$$, $$2$$, $$3$$, $$4$$, and $$5$$ on some cards. How many ways can he arrange the cards so that he makes a five-digit even number without repeating digits?
[ "Overseas Competition->Knowledge Point->Counting Modules->Law of Addition and Multiplication->Complex Forming Numbers", "Overseas Competition->Knowledge Point->Counting Modules->Permutations and Combinations->Combinations" ]
2023-07-07T00:00:00
b3a3839d65e84a9eb609756270102de4
2
short_answer
The sum of the digits of a 2-digit number is 15. What is the smallest possible such 2-digit number?
[ "Overseas Competition->Knowledge Point->Combinatorics->Logical Reasoning" ]
2023-07-07T00:00:00
71a76491c3df48ae9b18543d4e5cc354
1
short_answer
Eight apples are placed in a bag. The mean weight of the eight apples is $$\rm 50g$$. When an extra apple is added the mean weight increases to $$\rm 52g$$. What is the weight of the extra apple?
[ "Overseas Competition->Knowledge Point->Combinatorics->Pigeonhole Principle->Simple Pigeonhole Principle Problems" ]
2023-07-07T00:00:00
0ba3b59c0bfb4c87ae2d34a874d2d690
1
short_answer
There are $$250$$ lamps in a room, numbered with the natural numbers $$1$$, $$2$$, $$\cdots $$, $$250$$, and each light has a switch. At the beginning, all the lights are off. There are $$250$$ individuals who enter the room in turn. The $$1st$$ person enters the room, presses all the switch of the light , and then he leaves. The $$2nd$$ person enters the room, presses the switch for the light numbered in multiples of $$2$$, then he leaves. So on until the $$250th$$ person enters the room and presses the switch for the light number in multiples of $$250$$. After the $$250th$$ person left the room, how many lights were still on in the room?
[ "Overseas Competition->Knowledge Point->Number Theory Modules->Perfect Square Numbers" ]
2023-07-07T00:00:00
dd2fcc192d2f4c3dbf232e72bcb19fa6
1
short_answer
For what value of $x$ is the equation $\sqrt{-x}=4$ true?
[ "Overseas Competition->Knowledge Point->Calculation Modules" ]
2023-07-07T00:00:00
287a2d46ffa247fc9ad946e5c0911c54
1
short_answer
Find a shorter method to calculate this. $$99+98+97+96 = $$~\uline{~~~~~~~~~~}~
[ "Overseas Competition->Knowledge Point->Calculation Modules" ]
2023-07-07T00:00:00
966d6206a5444394a2096b3a802b79a5
2
short_answer
A photocopier can finish copying a document at speed of $50$ pages per minute. Speed up the rate of the photocopier by $ 20$ more pages per minute, he will finish the job in $2$ minutes less. How many pages are there in the document?
[ "Overseas Competition->Knowledge Point->Word Problem Modules" ]
2023-07-07T00:00:00
f4b2a4d95a2f4145b73f56fb9ae21969
1
short_answer
Find the average of the following sequence. $$1$$, $$3$$, $$5$$, $$7$$, $$9$$, $$\cdots $$, $$195$$, $$197$$, $$199$$.
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Average Problems ->Using Formulas", "Overseas Competition->Knowledge Point->Counting Modules->Statistics and Probability" ]
2023-07-07T00:00:00
2bb2908692c1496e83c9da8633b98269
1
short_answer
Find the $$30^{\text{th}}$$ term of this sequence. $$6$$, $$10$$, $$14$$, $$18$$,\ldots\ldots{}
[ "Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables->Arithmetic Sequences->The Number of Terms in an Arithmetic Sequence" ]
2023-07-07T00:00:00
9adda98665dc499994e24f43869d3eea
2
short_answer
The date today is Monday $$28$$\textsuperscript{th} January $$2013$$. When is the next year in which the $$28$$\textsuperscript{th} of January will fall on a Monday?
[ "Overseas In-curriculum->Knowledge Point->Measurement->Year, Month, Day->Calendar Table", "Overseas Competition->Knowledge Point->Word Problem Modules->Periodic Problems->Periodic Problems of Time->Period of Dates" ]
2023-07-07T00:00:00
939f1ef2920640e18e6791035bfe7f8a
1
short_answer
Work out $$5842 + 351$$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Addition and Subtraction ->Addition of Whole Numbers->Addition in Horizontal Form" ]
2023-07-07T00:00:00
84e25013e5fb4deda35beda9f5782685
2
short_answer
There are some apples and oranges in a farm. There are $$194$$ more oranges than apples, and the amount of orange is $$4$$ more than $$6$$ times that of apples. How many oranges are there in the farm?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Questions Involving Sum, Difference and Multiples->Problems of Difference and Multiple" ]
2023-07-07T00:00:00
446707881fde4e908bf63228a9dc7ee5
2
short_answer
Find the least dividend and divisor in the equation below. ~\uline{~~~~~~~~~~}~$\div$~\uline{~~~~~~~~~~}~$=$8$R7$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Multiplication and Division->Division of Whole Numbers->Division with Remainders" ]
2023-07-07T00:00:00
c2cbf1f7958e4d09ae575ec083bddec8
1
short_answer
My age is a multiple of $3$. Next year it will be a multiple of $5$. l am between $20$ and $35$ years old. How old am I? ~\uline{~~~~~~~~~~}~
[ "Overseas Competition->Knowledge Point->Combinatorics->Logical Reasoning->Reasoning by Conditions->Complex Reasoning " ]
2023-07-07T00:00:00
8488dbe7c4e548e79cc11b66f832cb46
1
short_answer
Every morning, Star goes out to exercise. At $$\rm 6:30$$ a.m., Star leaves home and jogs at a speed of $$6$$ miles per hour. At $$\rm 7:30 $$ a.m., Star feels a little bit tired and walks at a speed of $$5$$ miles per hour. At $$\rm 9:30$$ a.m., Star finishes her exercise. How many miles does Star travel in total every morning?
[ "Overseas Competition->Knowledge Point->Distance Word Problems->Distance Word Problems on Straight Road", "Overseas Competition->Knowledge Point->Word Problem Modules" ]
2023-07-07T00:00:00
f94d81e4add44bbdb22df230a08a082f
1
short_answer
Sasa wants to count how much money she has in her piggybank. Originally, her mother gave her $$$20$$. She saved $$$1$$ everyday and had been saved for one week. She lent her brother $$$5$$ and spent $$$3$$ on buying some snacks. How much money she had left now?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Word Problems in Economics->Basic Profit and Loss Concepts" ]
2023-07-07T00:00:00
c6742159f800490eb0db04916361e0a1
2
short_answer
If 4 construction companies can build a $$900\rm m$$ expressway in $$5$$ days, how many metters expressway will 1 construction company take to build one day?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Work Word Problems->Simple Work Word Problems" ]
2023-07-07T00:00:00
196a119f90d9439aaddd24ed22d849f3
1
short_answer
Mark is organising a trip for his running club. He hires a coach which normally costs £$$400$$. The coach firm gives a discount of $$10 \%$$ on this amount. Mark shares the cost equally between the $$30$$ members of the club. How much does each member pay? You must show your working.
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Word Problems in Economics->Basic Profit and Loss Concepts->Discount Problems" ]
2023-07-07T00:00:00
4e262975314040ab820a9ec130db1cb3
1
short_answer
A long distance calling plan charges $80$ cents for any call up to $15$ minutes long and $5$ cents for each additional minute. If it takes Ryan a total of $1.4$ dollars, how many minutes does the call last?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Word Problems in Economics->Segment Pricing" ]
2023-07-07T00:00:00
9cbab768b996487fafdce66ceab5b47e
1
short_answer
What is the last digit of the expression below? $$\underbrace{2\times2\times2\times\cdots\times2}_{2017} \times \underbrace{3\times3\times3\times\cdots\times3}_{2017}$$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Calculation of Multi-digit Numbers" ]
2023-07-07T00:00:00
f53f2f8694b148fdbea2cbce2274ad5e
1
short_answer
$$4\times$$~\uline{~~~~~~~~~~}~$$-13=55$$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Linear Equations with one Variable->Equations with Whole Number Coefficient" ]
2023-07-07T00:00:00
b2659c11d02e40ed86b49d179fd937b1
1
short_answer
Given $$4$$◈$$7=21$$ $$6$$◈$$22 = 20$$ $$8$$◈$$30=26$$ Find $$9$$◈$$20$$.
[ "Overseas Competition->Knowledge Point->Calculation Modules->Operations with New Definition->Finding Patterns" ]
2023-07-07T00:00:00
e50577a37b7c4a59a13a3b048ce98118
1
short_answer
There are $$255$$ boys and $$234$$ girls in David\textquotesingle s school. How many students in David\textquotesingle s school in total?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Applying Addition and Subtraction->Simple Addition and Subtraction" ]
2023-07-07T00:00:00
ffcf1702672046df8e86e7270234c92d
1
short_answer
Sara thinks of a number. She subtracts four, then divides by two and then adds eleven. Her answer is $37$. What is the number that Sara first thought of?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Inverse Operation Problems->Inverse Operations" ]
2023-07-07T00:00:00
2c68e4214ff54f85956ee7cc54457f0e
1
short_answer
How many multiples of $$5$$ are there between $$56$$ and $$120$$?
[ "Overseas Competition->Knowledge Point->Number Theory Modules->Factors and Multiples->Basic Concepts of Factors and Multiples" ]
2023-07-07T00:00:00
03cf341346924ba7a563f01f54c2a13f
1
short_answer
Find the value of $x$. $35=10-2x+7x$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution->Algebraic Expressions", "Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Linear Equations with one Variable" ]
2023-07-07T00:00:00
77ab09536f3247d9bbce6ad4688ccf88
1
short_answer
On 10\textsuperscript{th}~May 2005, Gina was 50 years old. James was 20 years old on 10\textsuperscript{th}~May 1997. How old was James when Gina was 35?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Age Problems" ]
2023-07-07T00:00:00
701a44d04fe2471b8b3b4a02034c3aed
1
short_answer
Write ten thousand and thirty-four using digits
[ "Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Read and Write numbers" ]
2023-07-07T00:00:00
ae56d2e7b43c4bd68b65a028a92a6651
0
short_answer
How many quarters are there in $$2\frac{1}{2}$$? ~\uline{~~~~~~~~~~}~
[ "Overseas Competition->Knowledge Point->Calculation Modules->Fractions->Operations of Fractions->Division of Fractions" ]
2023-07-07T00:00:00
8aad358e912f47108a9715343902ea04
1
short_answer
Lucy and Eddie are standing in a line to buy chocolate cake. Lucy is the $$5$$\textsuperscript{th} in line counting from front to back, and Eddie is the $$9$$\textsuperscript{th} counting from back to front. There are $$2$$ people standing between them. Lucy is in front of Eddie. How many people are standing in the line?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Problems Involving Queuing->Finding the Relationship between Two Characters with Overlapping (without knowing overlapping)" ]
2023-07-07T00:00:00
59d86540e8a94f73833a04f93b4465f1
2
short_answer
If $$\overline{26B789}$$ is divisible by $$13$$, find the value of $$B$$.
[ "Overseas Competition->Knowledge Point->Number Theory Modules" ]
2023-07-07T00:00:00
f0cc63d487f641d6828e61eaf1fc53c8
1
short_answer
The remainders of a number divided by $3, 5, 7$ or $8$ are four different prime numbers. What is the smallest possible value of the number?
[ "Overseas Competition->Knowledge Point->Number Theory Modules->Remainder Problems" ]
2023-07-07T00:00:00
fe803c1367d64b149801be4344758226
1
short_answer
A roll of cloth is $11$m $74$ cm long. $5$m $8$cm is cut from it to make a dress and the remainder is cut into $9$ equal stripes. What is the length of each stripe of cloth?
[ "Overseas Competition->Knowledge Point->Calculation Modules->Unit Conversion->Converting between Units of Length" ]
2023-07-07T00:00:00
47825c0910a244f4bdcd974186bcaefe
1
short_answer
I think of a number, add $4$, multiply by $7$ and subtract $21$. The result is $35$. What number did I start with?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Inverse Operation Problems->Inverse Operations" ]
2023-07-07T00:00:00
58e3a2db56754c6f9d5e40fe1b58ffe7
2
short_answer
At a florist, there was a total of $$3616$$ orchids, tulips and roses. The ratio of the number of orchids to the number of tulips was $$3:5$$.~ After $$40 \%$$ of the orchids, $$\frac{1}{5}$$ of the tulips and $$25 \%$$ of the roses were sold, there were $$2644$$ flowers left in the end. How many orchids were there in the florist at first?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Solving Problems Involving Fractions and Percentages->Finding the Base" ]
2023-07-07T00:00:00
a56cc128d0da4c10987a8d45533419d8
1
short_answer
A Year $$6$$ class has $$30$$ pupils. There are $$21$$ who are right-handed. There are $$16$$ girls in the class. Not all the girls are right-handed. What is the smallest number of girls who are right-handed?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Applying Addition and Subtraction->Overlapping->Overlapped (sets)" ]
2023-07-07T00:00:00
4fbf262896eb43f0886f401236b6a692
2
short_answer
There are two numbers, A and B, their sum is $$130$$. If the value of number A is $$4$$ more than five times that of number B, What is the value of number A?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Questions Involving Sum, Difference and Multiples->Problems Involving Sum and Difference" ]
2023-07-07T00:00:00
2a6b8ddd03b04d6ca675e0515ac48c3f
2
short_answer
Calculate: $$20.23\times 39+202.3\times 4.1+4\times 101.15=$$~\uline{~~~~~~~~~~}~
[ "Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Multiplication and Division of Decimals->Multiplication of Decimals" ]
2023-07-07T00:00:00
76f0b59b2fe34356a29cea5b4f171d3b
1
short_answer
Tanya spent $$ $336$$ in total on some books and files. She bought $$14$$ more books than files. Each book costs $$ $12$$ and each file costs $$ $9$$. How many books did she buy?
[ "Overseas Competition->Knowledge Point->Calculation Modules" ]
2023-07-07T00:00:00
488360b26f1144849d4bb784a270ca57
1
short_answer
In the pasture, there are some chickens and rabbits. The total number of chickens and rabbits is $$10$$, and there are $$34$$ legs in total. How many chickens are there in the pasture?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Chicken-Rabbit Problems" ]
2023-07-07T00:00:00
bdc6e2ddbb4c4c19b2b90c3c89e0ae05
1
short_answer
Work out $0.012 + 2.03 + 0.1456$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Addition and Subtraction of Decimals->Addition of Decimals" ]
2023-07-07T00:00:00
8a42b93556ef4bcebb38b2ba338a9e1d
1
short_answer
$60.2 \div 7$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Multiplication and Division of Decimals->Division of Decimals" ]
2023-07-07T00:00:00
49714794b0f94aada1cf3dfbf03a6990
2
short_answer
What is the ones digit of the result of $${{1}^{2013}}+{{2}^{2013}}+{{3}^{2013}}+{{4}^{2013}}+{{5}^{2013}}+{{6}^{2013}}+{{7}^{2013}}+{{8}^{2013}}+{{9}^{2013}}$$?
[ "Overseas Competition->Knowledge Point->Calculation Modules->Power->Computing Powers->Exponentiation of Powers" ]
2023-07-07T00:00:00
a7d1fbe2679e40b58d6660db0ed3287b
2
short_answer
(UK Emanuel School Entrance Examination Year $7$ Entry Question \#$28$) When my grandma\textquotesingle s age is divided by $6$ there is a remainder of $2$. But when divided by $7$ there is a remainder of $5$. My grandma\textquotesingle s age is between $30$ and $120$. How old is my grandma?
[ "Overseas Competition->Knowledge Point->Number Theory Modules->Remainder Problems->Chinese Remainder Theorem->Chinese Remainder Theorem with Constant Remainder" ]
2023-07-07T00:00:00
4073b71163494881a2c9c5629d8b16a5
2
short_answer
There are $$2$$ red socks, $$2$$ blue socks and $$2$$ black socks in a drawer. How many socks must Peter take out in total darkness, before he gets two socks of the same colour?
[ "Overseas Competition->Knowledge Point->Combinatorics->Pigeonhole Principle->Worst Case in Pigeonhole Principle Problems", "Overseas Competition->Knowledge Point->Counting Modules->Permutations and Combinations->Combinations" ]
2023-07-07T00:00:00
6a58abe1371844c497a2ad82064a0ebd
1
short_answer
Japan time is $$7$$ hours ahead of France. Amy started her flight from Japan to France at $$8$$pm of $$2$$nd July and arrived France at $$1$$am of $$3$$rd July. How long did the flight take?
[ "Overseas Competition->Knowledge Point->Combinatorics->Time Problem" ]
2023-07-07T00:00:00
c2819474faa94700a66e972f6de65651
0
short_answer
There are three numbers each represent by one of the symbols $$\square, \triangle, \diamond$$. Given that the following statements are true, what number does $$\diamond + \square$$ represent? $$\square + \triangle = 10$$ $$\triangle + \diamond = 16$$ $$\square + \triangle + \diamond = 22$$
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Equation Word Problems->Equivalent Substitution in Equation Word Problems->Replacement of Equivalent Substitution" ]
2023-07-07T00:00:00
29659ea8c8ba40fcbfd094b963998970
1
short_answer
A science textbook has $131$ pages. How many digits are used in numbering these pages from $1$?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Page Number Problem" ]
2023-07-07T00:00:00
adae7d5f0cb94d7e81c361caadeeff21
1
short_answer
Amna takes a test with $$50$$ questions. Four marks are given for each correct answer but one mark is taken off for each question she gets wrong. If Amna scores $$168$$ in the test and doesn\textquotesingle t attempt $$3$$ questions at all, how many questions did she answer correctly? (There is no penalty for not attempting a question in this test that Amna takes)
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Chicken-Rabbit Problems->Solving Chicken-Rabbit Problems by Using Hypothesis->Deducting Marks" ]
2023-07-07T00:00:00
6fc358af07bb4fb290d8b7b95d0d4815
2
short_answer
The total cost of $$9$$ similar necklaces and $$5$$ similar earrings was $$$1440$$. The total cost of $$2$$ such necklaces and $$3$$ such earrings was $$$439$$. Find the total cost of $$1$$ necklace and $$1$$ earring.
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Equation Word Problems->Multivariate Linear Equation Word Problems" ]
2023-07-07T00:00:00
b89eb8f48467425ca5d1e6474cae3be8
1
short_answer
Eugene had $5$ times as many coins as Sid. After Eugene used $$71$$ coins and Sid used $$16$$ coins, they had $51$ coins left altogether. How many coins did Eugene have at first?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Questions Involving Sum, Difference and Multiples->Problems of Sum and Multiple" ]
2023-07-07T00:00:00
b658611043604a84904809a513eca7b0
1
short_answer
The sum of two numbers is $$71$$. The difference of the two numbers is $$9$$. Find the bigger number.
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Questions Involving Sum, Difference and Multiples->Problems Involving Sum and Difference" ]
2023-07-07T00:00:00
d8d8fba2232a4e928731d18f9af5290b
1
short_answer
How many $$2-$$digit numbers can be formed using $$0$$, $$1$$ and $$2$$? (The digits can be repeated.)
[ "Overseas Competition->Knowledge Point->Counting Modules->Permutations and Combinations->Combinations", "Overseas Competition->Knowledge Point->Counting Modules->Law of Addition and Multiplication->Complex Forming Numbers" ]
2023-07-07T00:00:00
9638aa4f9615400687f09c8801020eb6
1
short_answer
$391 \times 7$
[ "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" ]
2023-07-07T00:00:00
b99e232169f64053801fd886d5ce3984
1
short_answer
The sum of five consecutive even numbers is $200$. What is the smallest of the five numbers?
[ "Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables->Arithmetic Sequences->Concepts of Arithmetic Sequences" ]
2023-07-07T00:00:00
8dea568bfc0f47a88a18a150964ebdd8
1
short_answer
There are two containers, $$A$$ and $$B$$. Container $$A$$ has $$50\text{g}$$ of water with $$10 \%$$ concentration of sugar. Container $$B$$ has $$30\text{g}$$ of water with $$20 \%$$ concentration of sugar. The same volume of sugar solution is removed from each container and transferred between the two containers, resulting in the concentration of sugar in both containers to become the same. Find the volume of sugar solution transferred in grams.
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Equation Word Problems->Word Problems for Linear Equations with One Variable" ]
2023-07-07T00:00:00
a137655c79064ec7a5bd8abbf2cc059d
3
short_answer
Calculate: $$\frac{100}{97}+\frac{100\times 99}{97\times 96}+\frac{100\times 99\times 98}{97\times 96\times 95}+\cdots +\frac{100\times 99\times 98\times \cdots \times 5\times 4}{97\times 96\times 95\times \cdots \times 2\times 1}=$$~\uline{~~~~~~~~~~}~.
[ "Overseas Competition->Knowledge Point->Calculation Modules->Splitting Terms and Finding the General Term->Splitting Terms of Fractions" ]
2023-07-07T00:00:00
5e71c6a0c7254d3ab8b549338d61acff
0
short_answer
Katie needs $$8$$ minutes to cut a piece of wood into $$5$$ sections. If her cutting speed remains the same, she needs~\uline{~~~~~~~~~~}~minutes to cut the piece of wood $$6$$ times.
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Interval Problems" ]
2023-07-07T00:00:00
f22bedb58be24a40a4d182dd0dbc7ffc
1
short_answer
Mark, Nicole and Peter are running for Head Prefect. $$120$$ students are involved in the voting. Mark has $$22$$ votes so far, while Nicole has $$27$$ and Peter has $$35$$. How many more votes must Peter get to be elected for the position?
[ "Overseas Competition->Knowledge Point->Combinatorics->Pigeonhole Principle->Worst Case in Pigeonhole Principle Problems", "Overseas Competition->Knowledge Point->Counting Modules->Permutations and Combinations->Combinations" ]
2023-07-07T00:00:00
3aa75c8b30a54c67a6563a2056fe6973
1
short_answer
A school has $$995$$ pupils. If there are $$7$$ less girls than boys, how many boys are there in the school? ~\uline{~~~~~~~~~~}~
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Questions Involving Sum, Difference and Multiples->Problems Involving Sum and Difference->Problems Involving Sum and Difference with Two Variables->Direct Sum and Direct Difference" ]
2023-07-07T00:00:00
92a0e5f9500b4853819d540562be1a80
1
short_answer
Calculate $87 \times ~23$
[ "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" ]
2023-07-07T00:00:00
2084c341f98040dbb7686adc74b457f7
0
short_answer
Circle\hspace{0pt} \hspace{0pt}the\hspace{0pt} \hspace{0pt}number\hspace{0pt} \hspace{0pt}which\hspace{0pt} \hspace{0pt}has\hspace{0pt} \hspace{0pt}the\hspace{0pt} \hspace{0pt}highest\hspace{0pt} \hspace{0pt}value\hspace{0pt} \hspace{0pt}of\hspace{0pt} \hspace{0pt}units.\hspace{0pt} \hspace{0pt} $$31$$~ ~ \hspace{0pt} \hspace{0pt} \hspace{0pt} \hspace{0pt} $$\hspace{0pt}32$$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Comparing, Ordering and Estimating->Comparing and Ordering->Comparing and Ordering Whole Numbers" ]
2023-07-07T00:00:00
4517703a55ee4695b02b8505817748b1
1
short_answer
(UK St Paul's Girls School Sample Paper Section $B$ Question $$2$$) My money box contains an equal number of $5$p, $10$p and $20$p coins and no other coins. How many coins are there altogether if there is $£4.90$ in the money box?
[ "Overseas Competition->Knowledge Point->Counting Modules->Questions Involving Enumeration->Enumeration->Ways of Paying->Calculating the Price" ]
2023-07-07T00:00:00
590bcb8900904fe88f3fadadb68feb11
1
short_answer
A TV normally costs £$540$ but is reduced by £$189$ in the sales. What is the percentage reduction?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Word Problems in Economics->Basic Profit and Loss Concepts->Discount Problems" ]
2023-07-07T00:00:00
038a870a64fa4b908242c675e09c8860
1
short_answer
A boy ate $$135$$ sweets in nine days. Each day he ate $$3$$ more than the day before. How many sweets did he eat on the last day?
[ "Overseas Competition->Knowledge Point->Calculation Modules->Sequences and Number Tables->Arithmetic Sequences->Sum of Terms in Arithmetic Sequences" ]
2023-07-07T00:00:00
27fec67c0edf42efbd46038d592d002b
1
short_answer
Fawzan went shopping with £$100$ in his wallet. He spent $10 \%$ of his money on a book and $20 \%$ of the rest on a DVD. How much money did he then have left?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Solving Problems Involving Fractions and Percentages->Knowing the Base" ]
2023-07-07T00:00:00
892ff0f234ae4e3cb7a7bf750eb3a01d
1
short_answer
Annie has $$ $28$$, she bought a gift for her friend that cost her $$ $20$$. How much money had she left? Please leave your answer in cents.
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Word Problems in Economics->Money Calculation" ]
2023-07-07T00:00:00
8f16804135244d3d952f4f7aa96aea99
1
short_answer
You deposit $1,000$ dollars in an account that pays $6 \%$ interest compounded yearly. Find the balance after $5$ years. ($1.06^{5} \approx 1.33823$ and $0.94^{5} \approx 0.73390$)
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Word Problems in Economics->Interest Problems" ]
2023-07-07T00:00:00
fa6e880afc1b420b858420333e657e2c
1
short_answer
How many digits are used for printing the page numbers of a book that has $$185$$ pages?
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Page Number Problem->Correspondence between Numbers and Page Numbers" ]
2023-07-07T00:00:00
749213142ff9426e8ef90f3f3aa7daa5
1
short_answer
Andy\textquotesingle s salary is £$$24000$$ per year. He is paid the same amount each month. He is given a pay rise of $$10 \%$$. Calculate his new \textbf{monthly} salary. \textbf{Yau must} show all your working.
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Solving Problems Involving Fractions and Percentages->Percentages Word Problems" ]
2023-07-07T00:00:00
27c26de10eb14930ae9cdf02279d1e58
1
short_answer
$$10-3\left( x-2 \right)=4x-5\left( 4-x \right)$$, $x=$~\uline{~~~~~~~~~~}~.
[ "Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Equivalent Substitution->Algebraic Expressions", "Overseas Competition->Knowledge Point->Calculation Modules->Basic Concepts of Equation->Linear Equations with one Variable" ]
2023-07-07T00:00:00
3da2630a7c3042408936061a5d0172c6
1
short_answer
$7842 -- 998 =$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Addition and Subtraction ->Subtraction of Whole Numbers->Subtraction in Horizontal Form" ]
2023-07-07T00:00:00
a8fa71f1af7245808f0ae42a4ff273b0
1
short_answer
Work out $704 -- 457$
[ "Overseas Competition->Knowledge Point->Calculation Modules->Whole Numbers->Whole Numbers Addition and Subtraction ->Subtraction of Whole Numbers->Subtraction in Horizontal Form" ]
2023-07-07T00:00:00
a12c2b2900394c9999c189d1a33af5a3
1
short_answer
$$123-(23+56)=$$~\uline{~~~~~~~~~~}~
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Applying Addition and Subtraction" ]
2023-07-07T00:00:00
e6f07695c3c44ceda16250795d0df505
2
short_answer
Ashley and Betty are new friends. Ashley: Hi Betty, when is your birthday? Betty: Let my birthday month number times $$31$$ and day number times $$12$$. Then the addition of the two products will be $$376$$. Can you help Ashley to find out Betty\textquotesingle s date of birth? [Shade your answer in the form of "ddmm". For example: If your answer is $$27^{\text{th}}$$ June, shade the answer as "$$2706$$".]
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Equation Word Problems->Multivariate Linear Equation Word Problems" ]
2023-07-07T00:00:00
0581d122126f4a8aa0564b99c14fdde4
1
short_answer
$$4.08\times20=1.08 \times20+\square \times20$$. What is the missing number in the box?
[ "Overseas Competition->Knowledge Point->Calculation Modules->Decimals->Distributive Property of Decimals" ]
2023-07-07T00:00:00
50997193003b42a5b1b612a65004742c
1
short_answer
Calculate: $$119+117-115+113-111+109-107+105-103+101-99=$$.
[ "Overseas Competition->Knowledge Point->Word Problem Modules->Applying Addition and Subtraction" ]