If you are proficient in mathematics, you should do more questions and answer them when you are finished. Never look at the answer when you do it. If you don't understand anything, you can discuss it with your classmates. I think it's better to discuss with my classmates than to ask the teacher. It will give you a sense of accomplishment and bring you closer to your classmates. Don't take him too seriously in math, as long as you grasp the score in front and scribble a few strokes in the back, you can easily get on 120. Mathematics and everything are just floating clouds, and confidence is the most important thing.