Common Core: 4.OA
Answer Key
Grade 4factorsEasy

GCF 4

Keep practicing

10 problems

1.
21
× 9
__
2.
16
×10
__
3.
12
×10
__
4.
36
×13
__
5.
31
×14
__
6.
26
×15
__
7.
21
×17
__
8.
18
×16
__
9.
19
×11
__
10.
20
× 6
__