除法简便运算练习题58146/5845-58

分类: 作业答案 • 2021-12-31 11:05:24

问题描述：

除法简便运算练习题58*146/58*45-58

答

=58*146/58*45-58*58*45/58*45=（58*146-58*58*45）/58*45=58（146-58*45）/58*45
=（146-58*45）/45=146/58-45=-42.482758620689

除法简便运算练习题58*146/58*45-58