fact-family/mul-div-2-5/hard · セット 81
6 problems
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日付：
1
Write the fact family for 7, 3, 21:
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2
Write the fact family for 4, 8, 32:
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3
Write the fact family for 3, 2, 6:
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4
Write the fact family for 9, 8, 72:
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5
Write the fact family for 10, 7, 70:
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6
Write the fact family for 7, 4, 28:
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