fact-family/add-sub-within-100/hard · 세트 100

6 problems
1
Write the fact family for 70, 5, 75: =
2
Write the fact family for 43, 36, 79: =
3
Write the fact family for 1, 1, 2: =
4
Write the fact family for 4, 5, 20: =
5
Write the fact family for 10, 11, 110: =
6
Write the fact family for 57, 16, 73: =
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