174.68+274.68+524.68+724.68+924.68

分类: 作业答案 • 2022-07-05 15:38:20

问题描述：

答

174.68+274.68+524.68+724.68+924.68=124.68+324.68+524.68+724.68+924.68
=524.68*5=524.68*10/2=2623.4