fact-family/add-sub-within-20/hard · Набор 52

6 problems
1
Write the fact family for 10, 9, 90: =
2
Write the fact family for 14, 4, 18: =
3
Write the fact family for 19, 1, 20: =
4
Write the fact family for 12, 11, 132: =
5
Write the fact family for 6, 3, 9: =
6
Write the fact family for 11, 5, 55: =
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