2010+2.6×26-7/5×14

问题描述:

2010+2.6×26-7/5×14
1个回答 分类:数学 2014-11-29

问题解答:

我来补答
2010+2.6×26-7/5×14
=2010+26×26×0.1-14×14×0.1
=2010+0.1×(26×26-14×14)
=2010+0.1×(26+14)×(26-14)
=2010+0.1×40×12
=2010+48
=2058
 
 
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剩余:2000