fact-family/add-sub-within-20/easy · セット 38
6 problems
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クラス:
日付：
1
Write the fact family for 11, 3, 14:
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2
Write the fact family for 6, 2, 8:
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3
Write the fact family for 15, 4, 19:
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4
Write the fact family for 16, 1, 17:
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5
Write the fact family for 4, 2, 6:
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6
Write the fact family for 15, 5, 20:
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