Very normal people. I always liked math when I was at school. I don't think it's different from others, but I seem to have liked it since the fourth grade of primary school, but I failed math before grade. But after I suddenly like it, I am much better than ordinary students. I don't understand why I like it. Because I don't like to listen to the teacher's lectures, I secretly learned junior high school mathematics in the fifth and sixth grades, and finished it in primary school. When I was in junior high school, I secretly taught myself high school mathematics. I'm not a math major, but I still like it. Although I don't need my children to go to school for many years, I can still remember by flipping through books. Children from primary school to college entrance examination, we all compete to do math problems together. In fact, it is really hard to figure out what people like.