Computation
Fractions
Greatest Common Factor (GCF) and Least Common Multiple (LCM)
Math Vocabulary
Riddles
100
Add carefully! 385 + 637 = ?
1,022
100
Give an equivalent fraction for 3/4.
Possible answers (there could be others) 6/8; 9/12; 12/15; 15/18; etc.
100

What is the Least Common Multiple of 6 and 10?

30
100
What vocabulary word means the answer to an addition problem?
sum
100

It goes up and down the stairs without moving.

carpet


200
Subtract carefully! 8,014 - 3,916 = ?
4,098
200

Reduce the fraction 18/27 to its simplest form.

2/3

200
What is the Greatest Common Factor (GCF) of 20 and 35?
5
200
What vocabulary word means the answer to a multiplication problem?
product
200

What animal can jump higher than a house?

All animals, because houses can't jump

300
Multiply carefully! 27 x 8 = ?
216
300
Reduce the fraction 35/40 to its simplest form.
7/8
300
What is the Greatest Common Factor (GCF) of 44 and 33?
11
300
What vocabulary word means the top part of a fraction?
numerator
300

What has a mouth, but cannot chew?

River

400
Multiply carefully! 52 x 39 = ?
2,028
400
Give an equivalent fraction for 2/5.
Possible answers (there could be others) 4/10; 6/15; 8/20; 10/25; 12/30; etc.
400

What is the Least Common Multiple of 6 and 8?

24

400
What vocabulary word means the answer to a division problem?
quotient
400

If you have me you want to share me, if you share me you won't have me. What am I?

A secret

500
Divide carefully! 168 รท 12 = ?
14
500
Multiply these fractions carefully! be sure to give your answer in simplet form. 3/4 x 2/5 = ?
3/10
500

What is the Least Common Multiple of 2,3, and 9?

18
500
The greatest common factor (GCF) of any two numbers is A) a number that divides evenly into both numbers. B) the largest number that divides evenly into both numbers. C) a number that both numbers will divide into evenly. D) the largest number that both numbers will divide into evenly.
B
500

You hear me once, you heard me again, and then I die until I am called again.

Echo

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