fact-family/add-sub-within-20/medium · 세트 8

6 problems
1
Fact family for {10, 4, 14}: Write all 4 equations =
2
Fact family for {4, 8, 12}: Write all 4 equations =
3
Fact family for {5, 1, 6}: Write all 4 equations =
4
Fact family for {5, 10, 15}: Write all 4 equations =
5
Fact family for {2, 3, 5}: Write all 4 equations =
6
Fact family for {3, 6, 9}: Write all 4 equations =
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