65 to 70. According to the relevant data of Shaanxi Senior High School Mathematics League, the second prize of 202 1 was 65 to 70. The national high school mathematics competition is a higher-level mathematics competition in China, and its status is much higher than that held by the provinces themselves. About 400 students from all over the country who have achieved excellent results in this competition are eligible to participate in the China Mathematical Olympics (CMO) sponsored by the Chinese Mathematical Society.