This document defines exponents and explains their properties and rules. It states that an exponent tells how many times a base number is multiplied by itself. It then provides examples of calculating exponents, including the rules that when multiplying exponents with the same base you add the exponents, and when dividing you subtract the exponents. It also covers raising exponents to another power by multiplying the exponents, and that anything to the zero power equals one. Negative exponents represent the reciprocal of a number.