fact-family/add-sub-within-10-write-all · 套题 30
6 problems
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1
Write the fact family for 43, 6, 49:
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2
Write the fact family for 7, 8, 15:
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3
Write the fact family for 45, 1, 46:
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4
Write the fact family for 34, 9, 43:
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5
Write the fact family for 47, 2, 49:
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6
Write the fact family for 33, 6, 39:
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