1, features: The characteristics of the Olympic Mathematics are to stimulate young people's mathematical talents, arouse their interest in mathematics, find a reserve army of scientific and technological talents, and promote the exchange and development of mathematics education in various countries; The characteristic of mathematics is to train the breadth, depth and creativity of thinking in an all-round way through strategic games and thinking training in mathematical activities, and to improve learning ability, problem-solving ability and creativity.

2. Difficulty: Olympiad is more difficult than mathematics, and it pays more attention to the difficulty and some fun when thinking. A course suitable for children with mathematical talent, interest in learning mathematics and spare capacity for learning. Mathematics, on the other hand, is a compulsory course for all students, paying more attention to understanding the meaning of the questions, finding problems, analyzing problems and solving problems.