Since you want to learn mathematics, it is better to choose a normal class, because mathematics is a basic subject, and the basic subjects in normal schools are generally strong. Beijing Normal University and East China Normal University are also 985. I feel that mathematics is better than Central South University and Jilin University. The estimated score is at one level.
Mathematics, as an important subject in basic disciplines, is the foundation of all sciences. Throughout human history, every major historical progress of mankind has the important support of mathematical knowledge.
These two universities are both powerful double-class universities now, and the admission scores are relatively close. Let me give you two ideas. First, if you pay attention to the results of subject evaluation, then choose Jilin University. Second, if the conditions are close, choose the city that you want to stay in and enjoy the scenery in the north, choose Jida, and choose Zhongnan if you want to study and live in the south.