As long as you review well, it shouldn't be difficult to take the math test. Reference books recommend Li Yongle's review books or Chen Wendeng's review books, which are quite classic math review materials. Li Yongle's book is relatively basic and lists the knowledge points in detail. Chen Wendeng's book has many topics, which are still difficult, and it is suitable for people with good mathematical foundation. As long as one of these two books is thoroughly done, mathematics will certainly be fine. I suggest that you read all three books of advanced mathematics, linear algebra, probability theory and mathematical statistics first, read the knowledge points, look at the examples in the textbook appropriately, and don't do after-school questions. After reading this book, I began to read Li Yongle's book reviews. Try to think about the problems in his book first, but you won't read his explanation again. All the questions should be written by yourself, and the questions that can't be done should be highlighted. Read it once, then read it for the second time, focusing on the problems that you didn't know before, and paying attention to the summary method. The problem-solving methods corresponding to various types of questions must be memorized. Then go on to do the real questions, and be sure to study the real questions thoroughly. Finally, do some sprint questions appropriately.