简便计算3.53×0.25+3.47

分类: 作业答案 • 2022-01-25 13:17:21

问题描述：

简便计算3.53×0.25+3.47

答

3.53×0.25+3.47
=（4-0.47）/4+3.47
=4/4-0.47/4+3.47
=1-0.1175+3.47
4.47-0.1175
=4.3525