It is not entirely correct for girls to learn math badly, while boys learn math well and badly. This can only vary from person to person. There are many reasons for not being good at math. For example, I am not interested in the subject of mathematics, and I am disgusted with it. I feel bored to death, and I feel big when I see the number. Many times, you will lead to poor math study. Personally, I think that to learn a subject well, we must first establish an interest in learning, just like liking it. Even if we don't like it, we will definitely not go to a deeper understanding, cultivate interest and let ourselves like it slowly. It is never too late.