What are the best ways to study for a math or chemistry test. i know flash cards wouldn't work. so plss give me ways to study for those kind of subjects. more than one answer plsss

Aman lives on the twelfth floor of an apartment building. every morning he takes the elevator down to the lobby and leaves the building. in the evening, he gets into the elevator, and, if there is someone else in the elevator -- or if it was raining that day -- he goes back to his floor directly. otherwise, he goes to the tenth floor and walks up two flights of stairs to his apartment.