fact-family/add-sub-within-20/medium · セット 19
6 problems
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クラス:
日付：
1
Write the fact family for 8, 11, 19:
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2
Write the fact family for 7, 7, 49:
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3
Write the fact family for 9, 8, 72:
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4
Write the fact family for 12, 11, 132:
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5
Write the fact family for 4, 5, 20:
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6
Write the fact family for 3, 12, 15:
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