(-41)+18+(-39)+12,(+0.25)-(-3又8分之1)-(+4分之1)+(-5又8分之3)(-18)-(-12)-(+14)+(-9)-(-3),(-0.5)-(-3又4分之1)+2.75-(+7又2分之1)

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/29 17:19:29
(-41)+18+(-39)+12,(+0.25)-(-3又8分之1)-(+4分之1)+(-5又8分之3)(-18)-(-12)-(+14)+(-9)-(-3),(-0.5)-(-3又4分之1)+2.75-(+7又2分之1)

(-41)+18+(-39)+12,(+0.25)-(-3又8分之1)-(+4分之1)+(-5又8分之3)(-18)-(-12)-(+14)+(-9)-(-3),(-0.5)-(-3又4分之1)+2.75-(+7又2分之1)
(-41)+18+(-39)+12,(+0.25)-(-3又8分之1)-(+4分之1)+(-5又8分之3)
(-18)-(-12)-(+14)+(-9)-(-3),(-0.5)-(-3又4分之1)+2.75-(+7又2分之1)

(-41)+18+(-39)+12,(+0.25)-(-3又8分之1)-(+4分之1)+(-5又8分之3)(-18)-(-12)-(+14)+(-9)-(-3),(-0.5)-(-3又4分之1)+2.75-(+7又2分之1)
(-41)+18+(-39)+12
=(-41+39)+(18+12)
=-80+30
=-50
(+0.25)-(-3又8分之1)-(+4分之1)+(-5又8分之3)
=(0.25-1/4)+(3又1/8-5又3/8)
=0-2又1/2
=-2又1/4
(-18)-(-12)-(+14)+(-9)-(-3)
=-6-16-9+3
=-22-9+3
=-31+3
=-28
(-0.5)-(-3又4分之1)+2.75-(+7又2分之1)
=(-0.5-7又1/2)+(3又1/4+3.75)
=-8+7
=-1