When you usually do the problem, you need a special manuscript. Mathematics is mathematics, physics is physics, and Chinese is Chinese.
When you get the draft paper in the examination room, disconnect first and separate. Fold the draft paper horizontally and vertically, and divide it into four pieces: upper, lower, left and right.
When making a draft, you should write the important calculation steps, outlines and ideas completely, and the process is generally standardized, which is convenient for looking back.