fact-family/mul-div-within-20-write-all · 套题 15
6 problems
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1
Write the fact family for 3, 4, 7:
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2
Write the fact family for 13, 3, 16:
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3
Write the fact family for 13, 5, 18:
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4
Write the fact family for 14, 2, 16:
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5
Write the fact family for 11, 3, 14:
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6
Write the fact family for 5, 8, 13:
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