1, learn skilled answering methods, such as graphic method, formula method, substitution method and so on! 2, practice more, practice more questions and get used to it, and naturally you can improve your speed. For example, the first answer to the same math problem takes 5 minutes, the second answer takes 3 minutes, and the third answer takes 1 minute. (You can test it yourself if you don't believe it) 3. Carefully examine the questions (it is recommended to read an application question at least twice and carefully) and think carefully. This not only improves the speed but also improves the accuracy. 4. Open your mind and enlarge your thinking space. You have seen this kind of problem before, but you can't remember it. You can enlarge your thinking space, think broadly, deliberate and think repeatedly with the questions you usually practice more. Questions that can be done in half an hour can be done in 15 minutes. There are also some fill-in-the-blank questions, which have several answers themselves. If you don't enlarge your thinking space, you won't get full marks when you finally study them. But don't think about anything irrelevant. For example, whose reciprocal is himself, the answers are of course 1 and-1, and sometimes 0 is filled in, but does 0 have a reciprocal?