9+99+999+9999+99999 = =
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/28 12:41:51
![9+99+999+9999+99999 = =](/uploads/image/z/120485-29-5.jpg?t=9%2B99%2B999%2B9999%2B99999+%3D+%3D)
9+99+999+9999+99999 = =
9+99+999+9999+99999 = =
9+99+999+9999+99999 = =
9+99+999+9999+99999
=(10-1)+(100-1)+(1000-1)+(10000-1)+(10000-1)
=10+100+1000+10000+100000-5
=111110-5
=111105
等于111105