fact-family/add-sub-within-10-fill-blanks · 套题 62
6 problems
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1
Write the fact family for 28, 12, 40:
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2
Write the fact family for 38, 5, 43:
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3
Write the fact family for 12, 9, 21:
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4
Write the fact family for 49, 1, 50:
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5
Write the fact family for 30, 1, 31:
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6
Write the fact family for 23, 1, 24:
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