Mathematics has a lot to do with the foundation of grade seven or eight. After graduation, I mainly review questions. It is not difficult to teach new knowledge. As long as you have strong computing skills, it should be no problem. At the same time, you should also pay attention to cultivating logical thinking and accumulating experience in doing problems. Generally speaking, it shouldn't be difficult.

Physics is very simple, just grasp the key points of the textbook, remember the contents of the textbook clearly in your mind, be patient and don't be impatient.

Chemistry should pay attention to memory, but not much attention to ability. The teacher will take you to summarize the knowledge points and how to do the problems.

In short, as long as you study hard, you will learn well, and there is no difficulty or difficulty.