A good explanation of mathematics first of all, this person is not very stupid (for example, I am stupid, but my math scores in high school are upstream, and general problems are difficult to solve). Secondly, this person's basic knowledge is very solid, that is to say, the kilometers, theorems and reasoning in the textbook are remembered and understood thoroughly, which shows that the basic skills are better. Finally, this person can use it flexibly. If he is not an IQ superman, he studies hard, thinks often and does many things.

Moreover, everyone has strengths and weaknesses, and it is difficult to be better than others everywhere, so what you need to do is not to discuss which aspect he must be better than you, but to study hard, lay a good foundation and do more exercises. If you always embarrass yourself, your grades will improve.