The first compulsory course of mathematics is mainly to learn various functions and master the images and properties of various functions skillfully. This kind of knowledge needs to do more problems to find various solutions. Compulsory four is mainly a lot of formulas, memorizing formulas and practicing, which requires flexible use of formulas. The required five math books are difficult and account for a large proportion in the exam. It is very important to master all kinds of problem-solving methods and thinking methods. In addition, doing more questions can make practice perfect. Finally, I wish you progress in your study.