59.5, 63.7. Volume A of the National Examination is a national examination paper for the college entrance examination. It is a college entrance examination paper organized by the examination center of the Ministry of Education, which is suitable for most provinces and regions in China, with the aim of ensuring the fairness of talent selection. According to China Examination Network, in 2023, the national average grade A (mathematics) was 59.5, and the difficulty coefficient was 0.39. The national average score of Grade A (number of papers) is 63.7, and the difficulty coefficient is 0.42.