fact-family/add-sub-within-20/medium · 세트 61

6 problems
1
Write the fact family for 5, 1, 6: =
2
Write the fact family for 2, 6, 8: =
3
Write the fact family for 9, 10, 19: =
4
Write the fact family for 6, 5, 30: =
5
Write the fact family for 8, 12, 96: =
6
Write the fact family for 5, 11, 55: =
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