fact-family/mul-div-within-20-fill-blanks · 套题 54
5 problems
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1
Write the fact family for 18, 1, 19:
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2
Write the fact family for 17, 1, 18:
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3
Write the fact family for 3, 14, 17:
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4
Write the fact family for 17, 2, 19:
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5
Write the fact family for 7, 3, 10:
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