Common Core: 4.OA — Operations & Algebraic Thinking
Grade 4 • factors • Easy
GCF 4
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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
__
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10 problems