(+30)+(-17.5)+(-20)+(+17.5)=?(-1.8)+0.2+(-1.5)+(-0.3)+1.5+0.1=?

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/09 05:54:33
(+30)+(-17.5)+(-20)+(+17.5)=?(-1.8)+0.2+(-1.5)+(-0.3)+1.5+0.1=?

(+30)+(-17.5)+(-20)+(+17.5)=?(-1.8)+0.2+(-1.5)+(-0.3)+1.5+0.1=?
(+30)+(-17.5)+(-20)+(+17.5)=?(-1.8)+0.2+(-1.5)+(-0.3)+1.5+0.1=?

(+30)+(-17.5)+(-20)+(+17.5)=?(-1.8)+0.2+(-1.5)+(-0.3)+1.5+0.1=?
(+30)+(-17.5)+(-20)+(+17.5)
=30-20+17.5-17.5-20
=10
(-1.8)+0.2+(-1.5)+(-0.3)+1.5+0.1
=0.2+0.1-0.3+1.5-1.5-1.8
= -1.8