1. Solid basic knowledge: The topics of mathematical competitions often require a deep understanding and mastery of mathematical knowledge. Therefore, we must first ensure that our basic knowledge is solid, including algebra, geometry, probability and statistics.

2. Problem-solving skills and methods: The topics of mathematical competitions are often difficult and complicated, and you need to master some problem-solving skills and methods. For example, learn to solve geometric problems with algebra, or solve probability and statistics problems with the idea of combinatorial mathematics.

3. Speed and accuracy of problem solving: There is usually a time limit in math competitions, so it is necessary to improve the speed of problem solving on the premise of ensuring the accuracy of problem solving. This requires a lot of practice to improve the speed and accuracy of solving problems.

4. Ability to analyze problems: The topics of mathematical competitions often require in-depth analysis and understanding of the problems. Therefore, we should cultivate our ability to analyze problems, learn to think about problems from different angles and find ways to solve them.

5. mock exams and review: in the process of preparing for the math competition, mock exams and review should be conducted. Mock exams can help you get familiar with the types and time limits of competitions, find out your own shortcomings and review them in a targeted manner.

In a word, the preparation for the math contest needs to pay attention to the solidity of basic knowledge, the mastery of problem-solving skills and methods, the improvement of the speed and accuracy of problem-solving, the cultivation of the ability to analyze problems, and the importance of mock exams and review. Through continuous efforts and practice, I believe you will get good grades in the math contest.