简便运算:(27.1-27.1*0.8)/0.2

来源:学生作业学帮网 编辑:学帮网 时间:2024/07/01 01:47:02

简便运算:(27.1-27.1*0.8)/0.2

(27.1-27.1*0.8)/0.2
=27.1*(1-0.8)/0.2
=27.1*0.2/0.2
=27.1

(27.1-27.1*0.8)/0.2
=27.1(1-0.8)/0.2
=27.1*0.2/0.2
=27.1*1
27.1

2.71