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师梦圆小学数学教材同步西南师大版五年级下册分数的意义下载详情
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西南师大2011课标版《分数的意义》新课标PPT课件优质课下载

5个“1”是5

把 看着单位“1”

6个“1”是6

1米

把 看着单位“1”

···5

················3

·······························1

······························

把 看着单位“1”

······( )

····························( )

····························( )

4

1

把 看着单位“1”

1米

······( )

··························( )

···························( )

3

1

把 看着单位“1”

····················( )

·······( )