(0.37+0.29+2)*(0.37+0.29+0.17)-(2+0.37+0.29+0.17)*(0.37+0.29)的简算方法

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/09 10:10:15

(0.37+0.29+2)*(0.37+0.29+0.17)-(2+0.37+0.29+0.17)*(0.37+0.29)的简算方法
(0.37+0.29+2)*(0.37+0.29+0.17)-(2+0.37+0.29+0.17)*(0.37+0.29)的简算方法

(0.37+0.29+2)*(0.37+0.29+0.17)-(2+0.37+0.29+0.17)*(0.37+0.29)的简算方法
原式=(0.37+0.29+2)*(0.37+0.29)+(0.37+0.29+2)*0.17-[(2+0.37+0.29)*(0.37+0.29)+0.17* (0.37+0.29)]
=(0.37+0.29+2)*0.17-0.17*(0.37+0.29)
=0.17*2
=0.34