Compared with the perfect score of 150, in recent years, the national line of mathematics for postgraduate entrance examination is generally concentrated between 50 and 70, and even the basic line of re-examination for Peking University and Tsinghua, the top universities in China, is only 90. The score of the basic knowledge of mathematics for postgraduate entrance examination is about 80 points. According to Bian Xiao's teaching experience, 90 points in the postgraduate entrance examination is a proficiency level, and you don't need to master too many skills or have perfect mathematical ideas.