fact-family/mul-div-10-12/expert · 套题 55
5 problems
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1
Write the fact family for 5, 9, 45:
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2
Write the fact family for 4, 3, 7:
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3
Write the fact family for 7, 2, 9:
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4
Write the fact family for 6, 3, 18:
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5
Write the fact family for 7, 3, 10:
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