Develop the good habit of doing the questions carefully and do a good job of collecting the wrong questions. Judging from the analysis of the results of the annual mathematics postgraduate entrance examination, many students are usually arrogant, and it is too late to regret losing points because of carelessness in the exam. Therefore, students should develop the good habit of doing problems seriously at ordinary times, and suggest that students do a set of wrong questions, so that we can review these wrong questions repeatedly in future review, which not only saves review time, but also improves review quality and efficiency. I think many students will do a lot of questions in the exam. You can refer to Mao 20 17 "Summary of Methods and Skills of Solving Problems in Postgraduate Mathematics". Mathematics one "