fact-family/add-sub-within-10-fill-blanks · 套题 20
6 problems
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1
Write the fact family for 1, 49, 50:
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2
Write the fact family for 35, 2, 37:
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3
Write the fact family for 26, 14, 40:
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4
Write the fact family for 2, 18, 20:
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5
Write the fact family for 34, 11, 45:
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6
Write the fact family for 20, 2, 22:
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