Students majoring in mathematics have systematically studied the basic knowledge of mathematics at the undergraduate stage, and have high mathematical literacy and problem-solving ability. Students majoring in mathematics usually take part in some math competitions or research projects, and these experiences can also improve their math level and problem-solving ability. It is not an unattainable goal to get 90 points in the second test of mathematics for postgraduate entrance examination.
Non-mathematics major candidates have only been exposed to some basic mathematics knowledge at the undergraduate level, and have not conducted systematic and in-depth study and training. Lack of mathematical literacy and problem-solving ability. It takes more effort and time to get a 90% score in the senior high school entrance examination, and it requires systematic study and review of mathematics knowledge, so as to improve one's problem-solving ability through a lot of practice.