fact-family/mul-div-within-20-write-all · 套题 81
6 problems
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1
Write the fact family for 7, 7, 14:
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2
Write the fact family for 13, 7, 20:
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3
Write the fact family for 16, 1, 17:
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4
Write the fact family for 11, 8, 19:
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5
Write the fact family for 6, 3, 9:
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6
Write the fact family for 12, 2, 14:
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