fact-family/add-sub-within-100/hard · 套题 33
6 problems
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1
Write the fact family for 11, 7, 77:
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2
Write the fact family for 7, 65, 72:
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3
Write the fact family for 2, 8, 16:
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4
Write the fact family for 63, 15, 78:
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5
Write the fact family for 55, 39, 94:
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6
Write the fact family for 12, 9, 108:
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