1.？ Establish a solid basic knowledge: Mathematics is an accumulative subject, which needs to be established continuously. If you have missed or weak knowledge in previous grades, I suggest you take some time to review and consolidate it.
2.？ Do more exercises: Mathematics needs constant practice to master. Try to do different types of exercises, such as fill-in-the-blank questions, multiple-choice questions and calculation questions, to help you deepen your understanding of concepts and skills.
3.？ Understanding concepts: Concepts in mathematics are very important because they are the basis for further study. If you don't understand a concept, you can ask your teacher or classmates, or look for relevant explanations and examples on the Internet.
4.？ Learn to think: Mathematics requires you to think logically and solve problems. Think as much as possible in your study, such as how to solve problems and how to prove theorems.
5.？ Communicate with teachers and classmates: Communicating with teachers and classmates can help you better understand and master mathematics knowledge. If you have questions or puzzles, you can ask your teachers or classmates, or join a math study group.
6.？ Find learning resources: Besides textbooks and teachers' explanations, there are many other learning resources that can help you learn math well, such as math websites, math software, math tutorials and so on.
In short, learning math well requires effort and time, and constant practice and thinking. If you can keep studying, I believe you will get good grades.