这个是987654
因为987654×9-6=8888880.
解:可设此为x
由已知可得:x×9-6=8888880
x×9=8888886
x=987654
(8888880+6)÷9
=8888886÷9
=987654
所以 987654x9-6=8888880
987654乘以9减6等于8888880
解:
(888888+6)÷9
=8888886÷9
=987654
什么乘以9减6等于8888880
(8888880+6)/9
=8888886/9
=987654