fact-family/add-sub-within-10/expert · セット 39

6 problems
1
Write the fact family for 4, 10, 40: =
2
Write the fact family for 6, 4, 10: =
3
Write the fact family for 3, 5, 8: =
4
Write the fact family for 8, 10, 80: =
5
Write the fact family for 2, 9, 18: =
6
Write the fact family for 8, 6, 48: =
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