fact-family/add-sub-within-10/medium · 套题 63
5 problems
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1
Write the fact family for 10, 3, 30:
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2
Write the fact family for 6, 3, 18:
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3
Write the fact family for 7, 2, 9:
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4
Write the fact family for 10, 7, 70:
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5
Write the fact family for 3, 6, 18:
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