/-4+7-11+123/-(4又1/3-5又1/2-7又1/3-10.5)过程!过程!
/-4+7-11+123/-(4又1/3-5又1/2-7又1/3-10.5)过程!过程!
日期:2021-06-05 06:09:43 人气:1
/-4+7-11+123/-(4又1/3-5又1/2-7又1/3-10.5)
=/3-11+123/-[(4又1/3-7又1/3)-(5又1/2+10.5)]
=/-8+123/-[-3-16]
=115+19
=134
=/3-11+123/-[(4又1/3-7又1/3)-(5又1/2+10.5)]
=/-8+123/-[-3-16]
=115+19
=134