RE: Formulas
Hello Christine
Thank you for your question, and welcome to the forum.
To use the AutoSum button:
1. Select the cell where you'd like to create a total (i.e. add numbers you have entered into a column or across a row).
2. Click on the AutoSum button (on the Home ribbon, in the Editing group of buttons). Excel will put a formula into the cell you have selected - check to make sure it has selected the cells containing the numbers you want to add together. If Excel has highlighted the wrong cells, you can use the white cross cursor to select the cells you want to have added together - this should change the formula.
3. Press Enter to populate the cell with the formula.
I hope this helps.
Amanda