fact-family/add-sub-within-10-write-all · 套题 96
6 problems
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1
Write the fact family for 20, 10, 30:
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2
Write the fact family for 17, 23, 40:
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3
Write the fact family for 1, 24, 25:
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4
Write the fact family for 45, 1, 46:
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5
Write the fact family for 20, 26, 46:
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6
Write the fact family for 43, 7, 50:
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