mixed number: An improper fraction written as a whole number alongside a fraction.

monomial: An expression with only one term.

multiple: A number evenly divisible by a specific factor.

multiplication property of zero; MPZ: A rule stating if the product of two numbers is zero, then one of the numbers must be zero.

multiplicative inverse: Also known as a reciprocal, one of two numbers whose product is one. The reciprocal of a number is that particular number in the denominator of a fraction with a value of one in the numerator.

multiplier: An integer multiplied with both the numerator and denominator of a fraction.