To study in Japan, you don't need to take a math test, but you only need to take a language certificate at most. For example, if you go to Japan to study in the third and second grades and take a unified examination for foreign students in Japan, you must take a math test! If you don't want to take the exam, you can go to the university to take other subjects. If you don't take the exam, you can be promoted to another undergraduate course. That's it.