fact-family/mixed/easy · 套题 18
6 problems
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1
Write the fact family for 4, 5, 9:
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2
Write the fact family for 1, 9, 10:
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3
Write the fact family for 1, 5, 6:
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4
Write the fact family for 4, 6, 10:
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5
Write the fact family for 1, 6, 7:
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6
Write the fact family for 2, 6, 8:
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