三年级数学下册六《认识分数》分一分精炼1(无答案)北师大版.doc

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1分一分1读出下面各分数。6言读作 ( ) 18读作( )10读作( ) 3读作( )2写出下面各分数。四分之一写作: 九分之一写作: 十一分之一写作: 二十分之一写作: 3填空。(1)把一个苹果平均分成三份,每份是这个苹果的( )分之( ),写作( )。(2) 18表示把一个整体平均分成( )份,取其中的( )份。(3)1 米的 1/10 是( )米,也就是( )分米。1 分米的 2是( )分米,也就是( )厘米。(4)把一条线段平均分成 15 份,其中的一份是( );把这条线段平均分成 30 份,其中的一份是( )。(5)写名称:4看分数,涂颜色。5下面那些图形的阴影部分能用分数表示,请写出来。(不能用分数表示的在图下面的括号里画“”)2

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