For all versions. There are only a handful of formulas you can use but its enough to get totals counts round numbers etc. Learn how to work with Function in a Words Table.
How to Insert the Sum Formula in a Word Table Step 1.
Now go to the first row last column and choose Table Tools Layout Formula. To add the formula in the Word table do the following. Word has many different features that allow you to do this and even create a more customized look to your table. If the cell you selected is at the bottom of a column.