Sometimes there is more than one idea and algorithm to solve mathematical problems. If you can't finish the math problem every time in the exam, you can try to change the way of solving the problem, usually look at the practice materials, look at the answer ideas above, and find a method that suits you.
You can also use your spare time to communicate with some students who can answer questions quickly and see how they answer questions. You can also learn their answering methods. You should grasp the classroom and finish your homework with high quality according to the teacher's ideas.
When writing homework, I sometimes repeat the same type of questions. At this time, we should consciously check the speed and accuracy, and we can have a deeper thinking on such problems every time we finish.
Ways to learn mathematics well:
When doing math problems, understand each step and think about why; If this happens frequently, it is necessary to change the calculation methods and habits, such as learning to check the calculation twice to improve the accuracy. The point is thinking.
The deeper you think, the more thoroughly you learn, and you can get high grades with a few questions. But this idea is not out of thin air, but based on the wrong question. Learn from your mistakes and make up for your own shortcomings, and there will be fewer and fewer mistakes next time.