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ゆいりんご
@teacher_2525
60÷2 これの解き方を説明させると、『まず0をなくして6÷2=3。3に0を足して30。』って説明しか出てこなくて… 10のまとまりで考えてるんだよっていうのがなかなか定着しない… 600÷2だったら、100のまとまり… 難しい😹
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