Math Glossary: m

Matrix An array of values.
Mean The average of a set of numbers, calculated by dividing the sum by the number of values.
Median The number in a set which has an equal number of values greater-than and less-than itself.
Metric System A system of measurements based on the decimal system, used in most countries and in almost all scientific applications.
Mixed Number A whole number and a fraction, as in one-and-a-half (1 1/2).
Mode The most-frequently occuring number in a set.
Multiplication The mathematical operation equal to repeated addition. Five multiplied by six means 5 sets of six, or 6+6+6+6+6.