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Mathematics, 30.07.2021 02:00 bri6517

Trong đợt làm kế hoạch nhỏ ,lớp 4A và lớp 4B góp được 471 kg giấy , lớp 4C và lớp 4D góp được 559 kg giấy, lớp 4A và lớp 4C góp được 520kg giấy. Hỏi lớp đóng góp nhiều nhất là bao nhiêu kg giấy.

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Trong đợt làm kế hoạch nhỏ ,lớp 4A và lớp 4B góp được 471 kg giấy , lớp 4C và lớp 4D góp được 559 kg...

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