fact-family/mul-div-6-9/expert · 套题 11
6 problems
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1
Write the fact family for 2, 2, 4:
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2
Write the fact family for 8, 2, 16:
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3
Write the fact family for 9, 1, 10:
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4
Write the fact family for 8, 2, 10:
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5
Write the fact family for 5, 1, 6:
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6
Write the fact family for 2, 6, 8:
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