5000-2-4-6-.-96-98-100等于?
问题描述：
5000-2-4-6-.-96-98-100等于?
急.
答
5000-2-4-6-.-96-98-100
=5000-(2+4+6+.+96+98+100)
=5000-(2+100)x50÷2
=5000-2550
=2450