Math/mæθ/ Definition 1 of 2Pro Tip 1/3Academic Subject Use 'math' when talking about the subject studied in schools, like history or science. She's majoring in math at university. Pro Tip 2/3Practical Problems Reference 'math' when discussing solving practical or theoretical problems, not just calculations. Designing a bridge requires complex math. Pro Tip 3/3Math Homework Use 'math homework' for assignments related to math topics or calculations. I can't join you tonight; I have a lot of math homework.