三年级数学下册六《认识分数》分一分(二)基础练习1北师大版.doc

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1分一分(二)1. 根据分数把下面各图形涂上颜色。 2.填空。(1)把一张饼平均分成 9 份,小新吃了其中的 1 份,用分数表示为( ) ;妈妈吃了其中的 5 份,用分数表示为( ) 。把( )看作一个整体。(2)把 18 个梨平均分给 6 个小朋友,每个小朋友得到( )个梨,占这些梨总数的( ) ;两个小朋友得到( )个梨,占这些梨总数的( ) 。把( )看作一个整体。(3)4 米的( ) ;6 角是 1 元的( ) 。答案1. 2.(1) 这张饼 (2)3 6 18 个梨 (3)3.(1)19 59 318 618

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