(1+0.11+0.13+0.17)(0.11+0.13+0.17+0.19)-(1+0.11+0.13+0.17+0.19)(0.11+0.13+0.17)

分类: 作业答案 • 2022-06-17 16:57:39

问题描述：

(1+0.11+0.13+0.17)*(0.11+0.13+0.17+0.19)-(1+0.11+0.13+0.17+0.19)*(0.11+0.13+0.17)
这题的解法是什么?

答

首先把原题中的加法算出
得 1.41*0.6-1.6*0.41
=（1+0.41）*0.6-（1+0.6）*0.41
=0.41*0.6-0.6*0.41+1*0.6-1*0.41
=0+0.6-0.41
=0.19

(1+0.11+0.13+0.17)*(0.11+0.13+0.17+0.19)-(1+0.11+0.13+0.17+0.19)*(0.11+0.13+0.17)