Launch Excel or open an existing table with numbers to add.; Type the calculation into the cell you want to place the result, for eg =15+25+4+10+5,; Press the Enter key to see the result. 2] How ...

How to use AutoSum in Excel. AutoSum works best when you have a column or row of numbers you want to add up. 1. Click the empty cell underneath the column of numbers that you want to add up.

Excel considers dates and times as numbers in cells, making calculation difficult. Excel processes 6 AM as "0.25," because it is one quarter of the way through the day. If you need to add a number ...