fact-family/mul-div-10-12/expert · 套题 22
6 problems
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1
Write the fact family for 7, 1, 8:
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2
Write the fact family for 7, 7, 49:
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3
Write the fact family for 10, 2, 20:
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4
Write the fact family for 1, 8, 9:
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5
Write the fact family for 5, 3, 15:
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6
Write the fact family for 4, 3, 12:
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