There are some differences between the Olympic Mathematics Competition and general mathematics (usually referring to mathematics courses in school education). The following are the main differences between them:

1. Objectives and contents: Olympiad mathematics focuses on improving students' mathematical thinking ability, problem-solving ability and creativity, while general mathematics focuses on teaching basic mathematical concepts, methods and skills. The topic of Olympic Mathematics is usually more challenging, requiring students to use advanced mathematical knowledge and skills to solve practical problems.

2. Examination form: The Olympic Mathematics Competition is usually conducted in the form of written examination, including multiple-choice questions, fill-in-the-blank questions and solutions. The topic is difficult, and the speed and accuracy of solving problems for students are also high. General mathematics courses pay more attention to classroom explanations, exercises and homework to help students master basic mathematics knowledge and skills.

3. Learning purpose: The main purpose of Olympic Mathematics is to cultivate students' interest in mathematics, stimulate their curiosity and exploration spirit, and exercise their ability to solve problems under pressure. General mathematics aims to help students build a solid mathematical foundation and lay a foundation for their future study and career.

4. Teaching methods: The teaching of Olympic Mathematics often pays more attention to heuristic and inquiry teaching methods, and encourages students to think independently, find problems and solve them. General mathematics curriculum relies more on traditional teaching methods, that is, teachers impart knowledge in class and students consolidate what they have learned through practice.

Although Olympic mathematics is different from ordinary mathematics, they are both important ways to cultivate students' basic mathematical literacy. Students can improve their math ability by taking part in Olympic math activities or taking general math courses, and lay a foundation for their future study and life.