(9+99+999+9999+99999+999999+9999999)×9×99×999×9999×99999÷9000000=?
问题描述:
(9+99+999+9999+99999+999999+9999999)×9×99×999×9999×99999÷9000000=?
答
y
(9+99+999+9999+99999+999999+9999999)×9×99×999×9999×99999÷9000000=?
y