True, perhaps this would be better called an exercise generator. However, when studying this in school, the teachers always called them problems, hence why the title was chosen. The project is developed towards students K-12 and possibly undergrads whose curriculum is aimed to get them comfortable with solving these computations without aid of a calculator, or at least without programs that solve it for them. This is not supposed to be the primary means of teaching, but rather a tool that teachers can use to provide infinite exercises for their students to practice on, with the benefit of students not being able to copy answers directly out of a textbook without understanding how it works.