fact-family/add-sub-within-20-write-all · セット 38

6 problems
1
Write the fact family for 3, 15, 18: =
2
Write the fact family for 6, 4, 10: =
3
Write the fact family for 6, 10, 16: =
4
Write the fact family for 10, 7, 17: =
5
Write the fact family for 17, 2, 19: =
6
Write the fact family for 3, 4, 7: =
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