(-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,

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/27 17:51:23
(-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,

(-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,
(-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,

(-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,
(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-(-13/3)+17/6-(-33/4)
原式=-3/2+13/3+17/6+33/4
=(-18/12)+52/12+34/12+99/12
=13又11/20

(-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
=?

(-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