Then, according to the difficulty of the college entrance examination in the past two years, it is divided into three kinds of difficulty: simple, medium and difficult.

Simplicity: the answer can be obtained through simple conclusions or theorems;

Chinese: you can get the answer by basic calculation methods;

Difficulty: close to the difficulty of postgraduate entrance examination;

Simplicity accounts for 30% of the whole paper, medium for 50% and difficulty for 20%.

Therefore, students with poor foundation must supplement the basic knowledge of junior and senior high schools. But that's not all. It is mainly to supplement the algebra part of junior high school and the function part of senior high school, because these are the thresholds for learning advanced numbers. Although it will not be directly examined in the examination paper, learning advanced mathematics requires these basic computing abilities and knowledge.