This document covers scientific notation and operations with exponents. It defines scientific notation as a number written in the form ab×10n, where 1 ≤ a < 10 and n is an integer. It provides steps for writing numbers in scientific notation by moving the decimal point and tracking the exponent. Rules are given for multiplying and dividing numbers in scientific notation by combining the coefficients and adding or subtracting the exponents. Examples are provided to demonstrate evaluating numerical expressions using these properties.