计算(99999+99999+99999+99999+99999)÷9=_.
问题描述:
计算(99999+99999+99999+99999+99999)÷9=______.
答
(99999+99999+99999+99999+99999)÷9
=99999÷9+99999÷9+99999÷9+99999÷9+99999÷9
=11111+11111+11111+11111+11111
=55555.