fact-family/mul-div-within-20-fill-blanks · 套题 14
6 problems
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1
Write the fact family for 15, 5, 20:
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2
Write the fact family for 17, 3, 20:
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3
Write the fact family for 12, 4, 16:
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4
Write the fact family for 18, 2, 20:
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5
Write the fact family for 14, 4, 18:
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6
Write the fact family for 7, 8, 15:
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