9999* 111+3333* 666
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/26 09:13:01
9999* 111+3333* 666
jiansuan
jiansuan
![9999* 111+3333* 666](/uploads/image/z/19301412-12-2.jpg?t=9999%2A+111%2B3333%2A+666)
原式=9*1111*111+18*1111*111
=27*1111*111
=3*9999*111
=3*(10000-1)*111
=333*(10000-1)
=3330000-333
=3329667
=27*1111*111
=3*9999*111
=3*(10000-1)*111
=333*(10000-1)
=3330000-333
=3329667