|19.08+(3.2-0.299/0.23)|*0.25
问题描述：
|19.08+(3.2-0.299/0.23)|*0.25
答
[19.08+(3.2-0.299/0.23)]*0.25
=[19.08+(3.2-1.3)]*0.25
=[19.08+1.9]*0.25
=20.98*0.25
=5.245