fact-family/mul-div-within-20-fill-blanks · セット 64
6 problems
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日付：
1
Write the fact family for 15, 5, 20:
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2
Write the fact family for 5, 14, 19:
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3
Write the fact family for 8, 10, 18:
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4
Write the fact family for 5, 3, 8:
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5
Write the fact family for 9, 1, 10:
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6
Write the fact family for 4, 10, 14:
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