1.(-2.2)+3.8 =1.6
简便运算:
2.(-36)-(-25)-(+36)=47
3.30-15-(-15)-(-7)=37
4.(10/3)+(-11/4)+(5/6)+(-7/12)=1/2
5.(-0.5)+(9/2) +(-19/2)+9.75=57/4
1.(-2.2)+3.8 =1.6
简便运算:
2.(-36)-(-25)-(+36)=47
3.30-15-(-15)-(-7)=37
4.(10/3)+(-11/4)+(5/6)+(-7/12)=1/2
5.(-0.5)+(9/2) +(-19/2)+9.75=57/4