0.15*(3.79-1.9)+1.11怎么简算

分类: 作业答案 • 2021-12-19 15:47:33

问题描述：

答

将1.11拆开1.05+0.06
0.15*（3.79-1.9）+1.11
=0.15*（3.79-1.9）+1.05+0.06
=0.15*（3.79-1.9）+0.15*(7+0.4)
=0.15*（3.79-1.9+7+0.4)
=0.15*8.93
=1.3935

答

0.15*(3.79-1.9)+1.11
=0.15x3.6+1.11
=0.54+1.11
=1.65