1.1x1.1x1.1-1.1x1.1-0.

分类: 作业答案 • 2022-01-04 12:45:37

问题描述：

答

1.1x1.1x1.1-1.1x1.1-0.11
=(1.1-1)1.1x1.1-0.11
=0.1x1.1x1.1-0.11
=1x0.11x1.1-0.11
=0.11x(1.1-1)
=0.11x0.1
=0.011