Common Core: 4.OA
Answer Key
Grade 4factorsEasy

Prime Numbers 5

Master primes

10 problems

1.
10
× 0
__
2.
12
× 0
__
3.
14
× 0
__
4.
16
× 0
__
5.
18
× 0
__
6.
20
× 0
__
7.
22
× 0
__
8.
24
× 0
__
9.
25
× 0
__
10.
27
× 0
__