简算;5.38+88.2-2.38+1.8,还有28.38-5.34+26.3-4.66

问题描述:

简算;5.38+88.2-2.38+1.8,还有28.38-5.34+26.3-4.66
1个回答 分类:数学 2014-11-07

问题解答:

我来补答
5.38+88.2-2.38+1.8
=5.38-2.38+(88.2+1.8)
=3+90
=93
28.38-5.34+26.3-4.66
=(28.38+26.3)-(5.34+4.66)
=54.68-10
=44.68
 
 
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