Common Core: 4.OA
Answer Key
Grade 4factorsEasy

GCF 5

Master GCF

10 problems

1.
16
×10
__
2.
12
×10
__
3.
36
×13
__
4.
31
×14
__
5.
26
×15
__
6.
21
×17
__
7.
18
×16
__
8.
19
×11
__
9.
20
× 6
__
10.
32
×22
__