Table of Contents### Task 15 How to Use AutoSum

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A function is a built-in formula. You give the function the required arguments (variables), and it computes the result. For the `SUM` function, all you have to specify is the range you want to total. The Standard toolbar provides quick access to `SUM` as well as some other commonly used functions such as `AVERAGE` (calculates average of a range), `MIN` (finds the minimum), `MAX` (finds the maximum), and `COUNT` (counts the items in a range). You will learn how to enter other functions in Task 16, "How to Enter Functions."

Complete the Entry

If the flashing border is surrounding all the cells you want to sum, press Enter to complete the formula. If the surrounded cells are wrong, drag to select the cells you want summed (the flashing border surrounds the cells you drag); then press Enter. The result is displayed in the cell.

Create an Average with AutoSum

You can use a drop-down menu of function options available through the AutoSum button to quickly insert functions. To create a function that calculates averages, select the cell in which you want the result to appear and then click the arrow on the AutoSum button. From the drop-down list of options, select Average.