Let's talk about how to read a book thoroughly ~, not that you have finished reading it, but that you have read it thoroughly! When you finish a topic, you should think about the ideas and test sites of the topic. If possible, you can also recall the related topics, or you can change the topic yourself and make it a more difficult topic. If you exercise regularly, your idea will be better. (-This is probably my biggest experience. I think I got good grades in math because I am different from most people. When you come across some representative difficult topics, or novel topics, as well as representative topics that you are prone to make mistakes, you'd better extract them from your own set of topics, so that you can flip through them and consolidate them when you have time. If you are really gifted in mathematics, you don't have to read it at ordinary times, but you can find some good questions and double them on the eve of the most important exam, such as the college entrance examination. In general, of course, you will suffer a little ~)