27.9+3.6×2.5÷0.48=简便方法

分类: 作业答案 • 2022-03-05 14:07:05

问题描述：

答

27.9+3.6×2.5÷0.48
=27.9+0.4×3×3×2.5÷0.16÷3
=27.9+0.4×2.5×3÷0.16
=27.9+3÷0.16
=27.9+300÷16
=27.9+18.75
=46.65