Xiaodong said: XXX, you are very good at math! Can you teach me how to study math? In that case, I can get excellent grades in math like you!

I said: the way to learn mathematics? In fact, I don't have any good methods! Do more, practice more and think more! Be able to use what you have learned flexibly.

Xiaodong said: Really? But our usual study time is the same!

I said: it's not a matter of time! But you don't care!