Because math learning needs practice, you need to practice and consolidate your knowledge every day. If you don't study mathematics for a period of time, the formulas and theorems in mathematics will gradually fade away, and the idea of solving problems will gradually be forgotten. Simply put, if you don't practice for a while, your hands will be born. It's easy to learn math well. You just need to listen to the teacher in class and do exercises after class, but the exercises don't need to be too difficult. You don't have to do this. It is important to be familiar with the knowledge and exercises in the textbook. Mathematics is really not difficult. You can learn well as long as you work hard.