fact-family/add-sub-within-20/hard · セット 33
6 problems
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日付：
1
Write the fact family for 8, 8, 64:
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2
Write the fact family for 8, 10, 18:
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3
Write the fact family for 7, 11, 77:
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4
Write the fact family for 9, 2, 18:
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5
Write the fact family for 7, 11, 18:
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6
Write the fact family for 5, 4, 9:
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