How to add up a sum total with Google Spreadsheet

To add up the sum total in Google spreadsheet you should create an empty cell below the list of items you wish to add up in the column.

ie,

A1 = 33
A2 = 23
A3 = 11
A4 = (Empty cell where you type this:

=sum(A1:A3)

then press enter,
A4 will now show you the sum total of cells A1 – A3 which should equal
A4 = 67

More here on Google Spreadsheet