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第1周数学乐园: 解方程  

2017-02-17 09:06:31|  分类: 五下 数学 |  标签: |举报 |字号 订阅

  下载LOFTER 我的照片书  |
解方程,打*的需要检验。
5.46χ=7.2              84-4χ32           18χ÷42.7

 

 

 

*⑷72÷4χ60              * 4χ+5χ1.08        *χ-0.1χ5.4

 

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