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三年级数学下册六《认识分数》分一分（二）基础练习2北师大版.doc

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1分一分（二）1.根据问题填空。每个苹果占苹果总数的 （ ）（ ）每份梨的个数占梨总数的 （ ）（ ）苹果的个数占所有水果的 （ ）（ ） 。2.按下面的分数圈一圈。 2答案1.（圈法不唯一）（3）2.（圈法不唯一）24 13

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