Mental Math
Real World Math
Math Puzzles & Riddles
100

Subtract 58 from 100.

What is 42?

100

Liam has 3/5 of a chocolate bar. He gives 1/5 to his friend. How much of the chocolate bar does he have left?

What is 2/5 of the chocolate bar?

100

What is the name of a polygon with eight sides?

What is an octagon?

200

What is the value of the digit 6 in the number 6,482?

What is 6000?

200

A movie started at 3:15 PM and ended at 5:00 PM. How long was the movie?

1 hour and 45 minutes

200

What is the value of the digit 5 in the number 5,432?

What is 5,000?

300

Subtract 1/3 from 1.

What is 2/3?

300

A rectangular garden is 8 meters long and 5 meters wide. What is the area of the garden?

40 square meters

300

Sherry started her homework at 4:15 PM and finished at 5:00 PM. How long did she spend on her homework?  

 45 minutes

400

How many inches are in 3 feet?

36 inches

400

Meghan spent $1,380 on a new television.  Her friend Polly got her television on sale for $855.  How much more did Meghan spend on her television than Polly?

What is $525?

400

Sarah has 3 times as many apples as Tom. Together, they have 16 apples. How many apples does Sarah have?

12 apples

500

Subtract 0.25 from 1.

What is 0.75?

500

A table has a length of 8 feet and a width of 3 feet. What is its perimeter?

22 feet

500

I am a number. When you multiply me by 4 and then subtract 6, you get 18. What number am I?

What is 6?