With all due respect, it is suggested that the basic knowledge of the textbook and the homework required by the teacher should be thoroughly written without additional counseling materials, so that the college entrance examination can be 120.

Judging from your math scores, you must have worked hard in class and homework.

If you want to do extra exercise books, it is very likely that the teacher will not digest the content and homework in class, and he will try his best to do it himself.

Content in class and homework after class are basic. If you don't do well, you will pursue extra exercises, and you will only be empty at both ends. Finally, you will find that the progress has not kept up, and your exercise book can't be written down at all, and you can't buy it back.