You can sum cells across multiple sheets in Excel. This article presents steps for Adding single-cell values or Adding values in the range of cells.

This tutorial will show you how to create a Formula to Add, Subtract, Multiply or Divide in Microsoft Excel. You can do basic calculations easily!

How to Do the Sum of an Indefinite Series in Excel. The Microsoft Excel program includes a variety of mathematical formulas that you can apply to any cell in a spreadsheet. If your business uses ...

This month’s column shows how to use the remarkably versatile AGGREGATE function in Excel.

Select the cell in your Microsoft Excel document that you would like to use for the sum of squares function and open the "Formulas" tab.

Google Sheets offers many of the same features as Microsoft Excel. The SUMIF function allows you to quickly sum rows that meet certain criteria.