fact-family/add-sub-within-10/hard · 套题 29
5 problems
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1
Write the fact family for 6, 7, 42:
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2
Write the fact family for 3, 2, 5:
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3
Write the fact family for 1, 7, 8:
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4
Write the fact family for 9, 1, 10:
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5
Write the fact family for 2, 8, 10:
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