fact-family/mul-div-6-9/easy · 套题 32
5 problems
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1
Write the fact family for 2, 5, 7:
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2
Write the fact family for 2, 3, 5:
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3
Write the fact family for 1, 8, 9:
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4
Write the fact family for 7, 1, 8:
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5
Write the fact family for 9, 1, 10:
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