fact-family/mixed/hard · 套题 72
6 problems
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1
Write the fact family for 5, 1, 6:
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2
Write the fact family for 7, 2, 9:
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3
Write the fact family for 10, 7, 70:
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4
Write the fact family for 7, 1, 8:
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5
Write the fact family for 2, 2, 4:
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6
Write the fact family for 3, 2, 5:
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