editors (login required)
Contents Tool Factory IT System Autosum
Grade: K-12
Required products: Tool Factory Spreadsheet
Having trouble adding a long string of numbers together? Worried that you're going to make a mistake? Use Tool Factory Spreadsheet's Autosum feature to solve this problem.

Step 1 - Select the cells that you want to add by left clicking, holding, and dragging your mouse across them. Cells in a row or column can be selected.

Step 2 - On the Spreadsheet toolbar click the autosum button.

Step 3 - The sum will now be placed in the cell below the selected cells in a column or to the right of the selected cells in a row.

It's as easy as that!
Downloadable Worksheets
  • Print Instructions on Autosum (DOC)
  • Print Instructions on Autosum (PDF)
    Mac users: To download, ctrl-click on the worksheet and choose "save link to disk"
  • Click images to enlarge