How to Add the Difference Range In Excel. The simplest way to add cells in Microsoft Excel is using the plus operator, such as "=A1+A2," but that method fails when adding different ranges.

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 ...

Launch Excel and create a new spreadsheet. You will use this spreadsheet to enter sample data that demonstrates markup percentage formulas. Type "Cost" in cell A1, "Selling Price" in cell B1 and ...

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.