The key to math review is to establish a knowledge network in your mind and understand your own learning situation, so you should read the transparent concept and the usual wrong questions twice. This is the old routine. Personally, I pay more attention to the method of summarizing questions with moderate difficulty. I'd better write it down It is useful to cram for the exam. Pay attention to what you should write on a piece of paper, make a small summary to remind yourself that it should be about one month before the exam starts, and finally you have to return it. In short, the right I can do should not be low.