问题描述:简便计算最佳答案: 解法一:18.1x0.92+3.93=18.1x(1-0.08)+3.93=18.1-1.448+3.93=18.1+2.482=20.582解法二:18.1x0.92+3.93=(18+0.1)x0.92+3.93=16.56+0.092+3.93=20.582 ?? 点击显示答案