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五年级下册(2015年1月第1版)《分数的意义》优质课PPT课件下载
5个“1”是5
1米
一个物体
一个计量单位
许多物体组成的一个整体
单位“1”
把 看做单位“1”
看做单位“1”
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把
把 看做单位“1”
····························( )
························( )
把 看做单位“1”
1米
···························( )
······························( )
把 看做单位“1”
····················( )
···················( )
把 看做单位“1”
····························( )
························( )
把 看做单位“1”