9+99+999+9999+99999+999999+9999999+99999999=?
来源：学生作业帮助网 编辑：六六作业网 时间：2024/12/19 04:44:15
9+99+999+9999+99999+999999+9999999+99999999=?9+99+999+9999+99999+999999+9999999+99999999=?9+99+999+9
9+99+999+9999+99999+999999+9999999+99999999=?
9+99+999+9999+99999+999999+9999999+99999999=?
9+99+999+9999+99999+999999+9999999+99999999=?
=99999999 +9 100000008*8=800000016