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三年级数学下册一《除法》节约拔高练习（无答案）北师大版.doc

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1节约 1.亮亮从图书馆借了一本 424页故事书，看了 4天，平均每天看 28页，剩下的要 3天看完，剩下的平均每天要看多少页？2.将 2，4，6，8 填在适当的方格内，使商最大。3.王老师要给三（1）班 48名学生每人买一本笔记本，正好文具店举行“买 6赠 2”的促销活动，王老师只需购买多少本笔记本？

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