9+99+99+9999+9999=()
9+99+999+9999+9999+99999=?
9+99+999+9999+99999 = =
9+99+999+9999+99999=?
9+99+999+9999+N个9=?
9999/99=
9999999+999999+99999+9999+999+99+9=
9+99+999+9999+99999+999999+9999999+99999999=?
简算:9999+999+99+9=______.
9*99*999*9999*99999*999999=?3Q
9+99+999+9999+99999+999999=______.
9+99+999+9999+99999+999999+9999999+99999999=( )