This document provides a summary of a Microsoft Excel 2007 training course on entering formulas. The course contains 3 lessons that teach users how to add, subtract, multiply and divide in Excel by typing formulas into cells. It also teaches how to use cell references in formulas so that results will automatically update when values change. The third lesson explains how to simplify formulas by using predefined functions to add up values, calculate averages, and find the minimum or maximum value in a range.