1/2+(-2/3)+4/5+(-1/2)+(-1/3) (-5.9)-(-6.1) 28-(-74) (-3.8)-(+7)_其他解答

1/2+(-2/3)+4/5+(-1/2)+(-1/3) (-5.9)-(-6.1) 28-(-74) (-3.8)-(+7)

人气：477 ℃　时间：2019-08-22 18:00:05

解答

1/2+(-2/3)+4/5+(-1/2)+(-1/3)=-1/5
(-5.9)-(-6.1)=0.2
28-(-74)=102
(-3.8)-(+7)=-10.8