I took the 396 math exam this year. As for what textbook to use, I use this Mathematical Classics published by the machinery industry, which is very popular on Amazon. com. It has a lot of problems, which is a little beyond the scope of testing. If you want to buy this book, do the simple part, and you don't have to read the difficult part. Of course, doing this book is mainly to mention it. You have to read the math textbook, that is, the students who took the number three exam. It depends on the scope of your exam. After reading it, do the exercises at the back of the book properly. The exercises must be targeted. How do you know this is targeted? Amazon has a joint exam, simulating real questions, and studying the real questions that have been tested, so you will know the scope and mode of the questions. Don't blindly learn 396 math like those who count to three. Mathematics pays attention to the foundation, and the problem-setting mode remains basically the same every year.