(-18.25)- 22/5+(+73/4)+(-4.4) -1.5-(-13/3)+17/6-(-33/4) 我做了几遍,总感觉答案不对,
问题描述:
(-18.25)- 22/5+(+73/4)+(-4.4)
-1.5-(-13/3)+17/6-(-33/4) 我做了几遍,总感觉答案不对,
答
(-18.25)- 22/5+(+73/4)+(-4.4)=-18.25-4.4+18.25-4.4=-8.8
-1.5-(-13/3)+17/6-(-33/4)=-1.5+26/6+17/6+8.25=6.75+43/6
答
(-18.25)- 22/5+(+73/4)+(-4.4)
=-18.25-4.4+18.25-4.4
=-8.8
-1.5-(-13/3)+17/6-(-33/4)
=-1.5+26/6+17/6+8.25
=6.75+43/6
=?
答
(1) (-18.25)- 22/5+(+73/4)+(-4.4) 原式= (-18.25)+(- 22/5)+(+73/4)+(-4.4)=(-18.5)+(-4.4)+(+18.5)+(-4.4)= [(-18.5)+18.5 ] + [ (-4.4)+(-4.4)]=0+(-8.8)=-8.8(2) -1.5-(-13...