If you dream of mathematics, then such dream indicates the decision which will have to be done, while thinking logically. The dream also suggests you to forget the emotions while making that particular decision. If you are unable to solve the mathematical issue in your dream, then it means you are having the chaos in your life and do not know what to do to figure out the lurking problem. The dream could also indicate the necessity to start acting now.
Dream dictionary: Mathematics dream meanings
If we are studying math in a dream that announces future meeting with someone of great knowledge.