作业帮15-[1-(-20-4)] (-40)-28-(-19)+(-24) 215-[1-(-20-4)] (-40)-28-(-19)+(-24) 22.54+(-4.4)+(-12.54)+4.4
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/29 21:58:53
![15-[1-(-20-4)] (-40)-28-(-19)+(-24) 215-[1-(-20-4)] (-40)-28-(-19)+(-24) 22.54+(-4.4)+(-12.54)+4.4](/uploads/image/z/2620279-55-9.jpg?t=15-%5B1-%28-20-4%29%5D+%28-40%29-28-%28-19%29%2B%28-24%29+215-%5B1-%28-20-4%29%5D+%28-40%29-28-%28-19%29%2B%28-24%29+22.54%2B%28-4.4%29%2B%28-12.54%29%2B4.4)
15-[1-(-20-4)] (-40)-28-(-19)+(-24) 215-[1-(-20-4)] (-40)-28-(-19)+(-24) 22.54+(-4.4)+(-12.54)+4.4
15-[1-(-20-4)] (-40)-28-(-19)+(-24) 2
15-[1-(-20-4)] (-40)-28-(-19)+(-24) 22.54+(-4.4)+(-12.54)+4.4
15-[1-(-20-4)] (-40)-28-(-19)+(-24) 215-[1-(-20-4)] (-40)-28-(-19)+(-24) 22.54+(-4.4)+(-12.54)+4.4
15-[1-(-20-4)]
=15-[1+24]
=15-25
=-10
(-40)-28-(-19)+(-24)
=-40-28+19-24
= -68+19-24
=-49-24
=-73 22.54+(-4.4)+(-12.54)+4.4
=22.54-4.4-12.54+4.4
=(22.54-12.54)+(-4.4+4.4)
=10
-10、-73、10