You'd better buy a complete solution of the textbook, which is synchronized with the textbook and can be seen at a glance. Then practice math problems more after class to improve. However, we must do it through our own independent thinking, so that we can make progress. If you are wrong, it depends on what kind of questions you are wrong on, which means that you have not mastered the knowledge firmly and need to practice more.

I tell you, I am only a junior one student. Let's work together!

Wolf, come here! ^_^