Multiplication
Division
Fractions
4th Grade Mental Math
4th Grade Math Mystery
100

What is 40 x 8?

320

100

64 / 8 

100

What is a denominator?

The number of pieces in 1 whole

100

10 x 10=

100

100

Will there be a remainder if the problem is 687/2.    Bonus:  What will the remainder be?

Yes, R1

200

What is 30 x 800

2/5 is less than 1/2

200

108 divided 9

12

200

What is the top number of a fraction called?

Numerator

200

200 x 2 =

400

200

What does the word sum mean in math?

The answer to an addition problem.

300

What is 357 x 9

3,213

300

321 divided by 2 is...

160 r1

300

Draw 1/4

See pictures

300

What are all the factors of 36?

1, 2, 3, 4, 6, 9, 12, 36

300

What is a quotient?

The answer to a division problem.

400

What is 64 x 4,953

316,992

400

688 / 7

98 R2

400

What is larger, 1/2 or 2/3? Draw a picture if you need.

See pictures.

400

What are the first 6 multiples of 8?

8, 16, 24, 32, 40, 48

400

What does the word equivalent mean?

Something that means the same thing.

500

Mrs. Davis walked 3/8 mile to school. Mrs. Calandrella  walked 3/4 mile to school. Who walked farther?

Mrs. Calandrella

500

3,750 divided by 5

750

500

If the fraction is 5/8, how what is the fraction we are not talking about (ie not shaded)?

3/8

500

Ms. Priester had a birthday party at Oakridge Mall. Five of her friends joined her. They wanted to play Laser Tag, Dodge Ball, and the Wipeout Game. If the tickets for unlimited games cost $20 each, how much did it cost for the entire party to play?

$120

500

What fraction is equivalent to this decimal?

0.5

1/2