fact-family/mul-div-within-20-fill-blanks · 套题 12
6 problems
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1
Write the fact family for 12, 1, 13:
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2
Write the fact family for 5, 8, 13:
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3
Write the fact family for 17, 2, 19:
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4
Write the fact family for 12, 8, 20:
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5
Write the fact family for 10, 4, 14:
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6
Write the fact family for 3, 1, 4:
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