More than 80 points. According to official website, who inquired about the National College Mathematics Ability Challenge, the National College Mathematics Ability Challenge can improve the thinking ability, with a score above 70 and a probability of 10%, and a score above 80 can win prizes, namely the first prize, the second prize and the third prize. The National Mathematics Ability Challenge in Colleges and Universities aims to promote mathematics culture, stimulate and cultivate young college students' interest in learning mathematics, popularize basic mathematics science, and strengthen and improve young people's innovative thinking ability. It aims to provide a platform for young college students who like mathematics to show their talents and wisdom through unique and innovative competition modes and concepts.