1. Establish good study habits: keep a certain amount of study time every day, and persistently finish homework and review.

2. Understanding concepts: Mathematics is a concept-based discipline, so it is necessary to ensure a clear understanding of each concept. If you encounter difficulties, you can consult your teachers or classmates.

3. Do more exercises: Mathematics needs a lot of exercises to consolidate knowledge. Doing more exercises can help you get familiar with all kinds of questions and improve your problem-solving ability.

4. Pay attention to basic knowledge: Mathematics is a step-by-step subject, and mastering basic knowledge is very important for subsequent study. Be sure to master the basic knowledge of the fourth grade.

5. Creative thinking: Mathematics is not only rote learning, but also needs to cultivate creative thinking. Try to solve the same problem in different ways and exercise your thinking ability.

6. Use more auxiliary tools: Using auxiliary tools such as calculators and geometry tools can help you better understand and solve problems.

7. Participate in math competitions and activities: Participating in math competitions and activities can improve your math ability and interest, and at the same time, you can exchange learning experiences with other students.

8. Review and summarize in time: Reviewing and summarizing what you have learned regularly will help to consolidate your memory and discover your own shortcomings.

In short, learning fourth-grade mathematics well requires persistence, hard work and correct learning methods. Through the above steps, I believe you will get good results.