fact-family/add-sub-within-20/expert · セット 54
6 problems
名前：
クラス:
日付：
1
Write the fact family for 19, 1, 20:
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2
Write the fact family for 10, 10, 20:
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3
Write the fact family for 17, 2, 19:
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4
Write the fact family for 2, 8, 16:
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5
Write the fact family for 9, 7, 16:
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6
Write the fact family for 8, 8, 16:
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