作业帮99999/2+9999/2+999/2+99/2+9/2=
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/05 07:36:15
99999/2+9999/2+999/2+99/2+9/2=
99999/2+9999/2+999/2+99/2+9/2=
99999/2+9999/2+999/2+99/2+9/2=
99999/2+9999/2+999/2+99/2+9/2
=（100000-1）/2+(10000-1)/2+(1000-1)/2+(100-1)/2+(10-1)/2
=50000-1/2+5000-1/2-+500-1/2+50-1/2+5-1/2
=55555-5/2
=55552.5
100000/2+10000/2+1000/2+100/2+10/2-5/2=55552.5
55552.5
99999/2+9999/2+999/2+99/2+9/2=55552.5