The academic field dealing with numbers, shapes, and structures; mathematics (broader than arithmetic).
彼は大学で数学を専攻している。
He is majoring in mathematics at university.
この問題は高校数学の範囲に入る。
This problem falls within the scope of high school mathematics.
数学的な考え方は日常生活でも役に立つ。
Mathematical thinking is useful in everyday life, too.