0.9999×1.3-0.1111×2.7的简便运算?

分类: 作业答案 • 2021-12-20 10:18:24

问题描述：

答

0.9999×1.3-0.1111×2.7
=0.9999×1.3-0.1111×9×0.3
=0.9999×1.3-0.9999×0.3
=0.9999×(1.3-0.3)
=0.9999×1
=0.9999