(13)计算:8.1×1.3-8/1.3+1.9×1.3+11.9/1.3

问题描述:

(13)计算:8.1×1.3-8/1.3+1.9×1.3+11.9/1.3
1个回答 分类:综合 2014-10-07

问题解答:

我来补答
8.1×1.3-8/1.3+1.9×1.3+11.9/1.3
=1.3×(8.1+1.9)+(-8+11.9)/1.3
=13+3
=16
 
 
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