(-64)+17+(-23)+68=?怎么写
问题描述:
(-64)+17+(-23)+68=?怎么写
一步步写出来 详细步骤、不太懂
答
(-64)+17+(-23)+68 =(-64)+17+(-4)+(-19)+68 =(-68)+68+17+(-19) =0+17+(-19) =-2
(-64)+17+(-23)+68=?怎么写
一步步写出来 详细步骤、不太懂
(-64)+17+(-23)+68 =(-64)+17+(-4)+(-19)+68 =(-68)+68+17+(-19) =0+17+(-19) =-2