fact-family/mixed/easy · 套题 15
5 problems
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1
Write the fact family for 3, 6, 9:
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2
Write the fact family for 3, 7, 10:
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3
Write the fact family for 4, 1, 5:
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4
Write the fact family for 6, 3, 9:
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5
Write the fact family for 1, 2, 3:
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