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 展开全文阅读