fact-family/mixed/easy · 套题 19
6 problems
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1
Write the fact family for 6, 4, 10:
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2
Write the fact family for 2, 2, 4:
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3
Write the fact family for 1, 7, 8:
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4
Write the fact family for 4, 3, 7:
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5
Write the fact family for 8, 1, 9:
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6
Write the fact family for 3, 4, 7:
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