mathematics /mæθ(.ə)ˈmæt.ɪks/ noun2 •An abstract representational system studying numbers, shapes, structures, quantitative change and relationships between them.The answer is 'yes', and the mathematics needed is the theory of probability and its applied cousin, statistics. — 2002 •A person's ability to count, calculate, and use different systems of mathematics at differing levels.My mathematics is always improving.