fact-family/add-sub-within-10/hard · セット 48
6 problems
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日付：
1
Write the fact family for 10, 7, 70:
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2
Write the fact family for 1, 4, 5:
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3
Write the fact family for 8, 3, 24:
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4
Write the fact family for 7, 2, 9:
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5
Write the fact family for 1, 5, 6:
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6
Write the fact family for 4, 6, 24:
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