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Add the values in a column or row by using a button. You can use AutoSum to quickly sum a range of numbers in a column or row. Click an empty cell below a column of numbers or to the right of a row of numbers, and then click AutoSum. Excel selects what it determines to be the most likely range of data.
Add up a column or row of cells in Excel. There are a variety of ways to add up the numbers found in two or more cells in Excel. This lesson shows you several methods including the SUM function and the Autosum button. Let's say you have several cells, such as A2, A3 and A4.