fact-family/add-sub-within-10-fill-blanks · 套题 17
6 problems
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1
Write the fact family for 4, 24, 28:
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2
Write the fact family for 45, 2, 47:
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3
Write the fact family for 48, 1, 49:
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4
Write the fact family for 32, 18, 50:
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5
Write the fact family for 31, 15, 46:
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6
Write the fact family for 18, 29, 47:
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