fact-family/add-sub-within-20/hard · セット 37
6 problems
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クラス:
日付：
1
Write the fact family for 13, 1, 14:
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2
Write the fact family for 7, 1, 8:
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3
Write the fact family for 12, 12, 144:
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4
Write the fact family for 8, 7, 56:
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5
Write the fact family for 7, 11, 18:
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6
Write the fact family for 12, 6, 18:
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