You can performs some basic calculations in Word's 2007 tables like adding and averaging the numbers listed in the cells within the table. So if I have five cells in column one and cell number six is blank, I'll click in that blank cell and insert a functions to add up all the numbers showing in the five cells above. To insert the function or formula click on Layout Tab, in Data group and click Formula button. Here you can not only select the SUM function to add up the five cells, but also set the format to show the total in currency, with or without decimals and more. After inserting your calculation, be sure to right click it to update, that is if the numbers in the five cells above have changed.

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