Math
Math
Math
100

which shape has 3 equal sides?

equilateral triangle

100

what is the mode among numbers below?

23; 34; 21; 34; 25; 34; 21; 55; 67;

34

100

can you use the ruler to measure the length of the straight line?

No

100

what is the x-coordiante of the point at (4 , 10)

4

100

24x4=

96

100

what is the fraction of 0.06?

6/100

200

What is 4.25 + 6.13?

10.38

200

Calculate the mean among numbers below

26; 18; 32; 24; 20

24

200

9168 + 2915

12083

200

what is the sum of interior angles of the rectangle?

360

200

19.06 - 13.14

5.92

200

Which digit is in the hundredths place?

12,485.96

6

300

What is the place value of the 4 in 3,427,891?

Hundred thousands place

300

199 x 4

796

300

612,532 + 44,622

657,154

300

What is 216 divided by 8?

27

300

What is 602,564 - 129,875 ?

472,689

300

The digit 6 is in what place?

1,623,985

hundred thousands

400

Write all prime numbers that are less than 35.

2; 3; 5; 7; 11; 13; 17; 19; 23; 29; 31;

400

What is 6091 x 75?

456825

400

Find the highest common multiple of 72 and 108

216

400

What is the 273952 divided by 32?

8561

400

What is the 32/25 minus 27/30? Give the simplest fraction.

19/50

400

Calculate the area of square with side length 4.02cm.

16.1604

500

Magnus has to play 15 games in a chess tournament. At some point during the tournament he has won half of the games he has played, he has lost one third of the games he has played and two have ended in a draw. How many games does Magnus still have to play?

3

500

The sum of the ages of Kate and her mother is 36. The sum of the ages of her mother and her grandmother is 81. How old was her grandmother when Kate was born?

Kate 和她妈妈的岁数相加时，得到的和是 36。 Kate 的妈妈和 Kate 的奶奶的岁数相加 时，得到的和是 81。请问 Kate 出生时，她奶奶几岁?

45

500

Nick wants to arrange the numbers 2, 3, 4, . . . , 10 into several groups such that the sum of the numbers in each group is the same. What is the largest number of groups he can get?

Nick 想把 2, 3, 4, . . . , 10 这些数字分成数组，使得每一组里的数字之和是一样的。请问他 最多能分成多少组?

3

500

A little kangaroo is playing with his calculator. He starts with the number 12. He multiplies or divides the number by 2 or 3 for 60 times in a row. Which of the following results cannot be obtained?

(A) 12 (B) 18 (C) 36 (D) 72 (E) 108

C

500

A bag contains only red marbles and green marbles. For any 5 marbles we pick, at least one is red. For any 6 marbles we pick, at least one is green. What is the largest number of marbles that the bag can contain?

9

500

Granny has 10 grandchildren. Alice is the eldest. One day, Granny notices that her grandchildren all have different ages. If the sum of her grandchildrens’ ages is 180, what is the youngest Alice could be?

23