Don't go to cram school. Let me speak for myself. In fact, there are two kinds of math problems in the high school exam, one is easy, usually 120, and the other is difficult, 30 points, but these 30 points include difficult calculations and ideas. As long as you put your heart into it, you can generally get more than ten points. Basic problems should have a solid foundation, such as concepts and solutions to various basic problems. We must be skilled, careful and not arrogant. For difficult problems, we should use our usual methods to summarize. In any case, as long as you listen carefully in class, take detailed notes, digest immediately, keep up with the teacher's ideas, review after class, finish your homework carefully, and set a set of wrong questions yourself, you can get high marks and do it right away. The key is to concentrate and not be distracted!