Riddles
Math-ish Riddles
Basic Math's
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100

What goes up but never come's down?

Your Age.
100

I’m a number. Multiply me by 3 and subtract 4 to get 20. What am I?

8.

100

84 ÷ 6 + 7 =?

21.
(84÷6 = 14, 14 + 7 = 21).

100

A GAA team scores 3 goals and 7 points. How many total points?

16 points.

100

Solve: x − 4 = 9

x = 13.

200

I have cities but no houses, rivers but no water. What am I?

A Map.

200

I am a number. When you divide me by 3, the answer is 7 with no remainder.

21.

200

¾ of 32 = ?

24.

200

A class ratio is 9 boys : 11 girls. If there are 44 students total, how many boys?

18 boys.

200

Solve: 5x − 9 = 3x + 11

x=10.

300

A cowboy and his horse go into town on Tuesday and stay for one night. He returns on Friday, how?    

The horses name was Friday. 

300

I’m an odd number. Take away one letter and I become even. What am I?

Seven.

300

Which is bigger: 3² or 2³ ?

3².

300

A number is multiplied by 5, then 12 is subtracted, and the result is 48. Find the number.

12.

300

Write 0.376 as a fraction in simplest form.

3/8.

400

What word has letters but isn’t the alphabet?

A Post Office.

400

I’m a two-digit number. Reversing my digits makes a number that is 27 more than me.

36.

 (63 is 27 more).

400

3.6 + 0.85 − 1.2 = ?

3.25.

400

What is bigger: 0.6 or ⅝ ?

400

Solve: 3x + 2 = 17

x = 5.

500

Two fathers and two sons go to a match.
They buy three tickets total.
How is this possible?

Grandfather, father, and a son.

500

I’m a number between 1 and 100. I’m divisible by 2, 3, and 5. What’s the smallest possible?

30.

500

A number is increased by 25% and becomes 80.
What was the original number?

64.
(80 ÷ 1.25 = 64).

500

Which is bigger: 7/12 or 3/5 ?

3/5.

500

A triangle has a base of 10 cm and a height of 6 cm.
Find its area.

30 cm².