In school education, mathematics is one of the compulsory courses, and there are different mathematics courses with different difficulties and contents at all stages from primary school to university. Mathematics has many branches, including algebra, geometry, probability statistics, calculus and so on. Each branch has its own theory and application. Learning mathematics well is of great help to personal growth and career development, so when learning mathematics, we should pay attention to the foundation, master the methods, do more exercises, and constantly improve our mathematical literacy.