In the ordinary office, I often encounter the need to sum in Word, and the use of Excel friends know that in the Excel Common toolbar has a (auto sum) button is very convenient. In fact, in the Word 2003 table, you can also use the (auto Sum) button, of course, this need to find a way to pull (auto sum) button to go, the method is:
1. On the Tools menu, click Customize.
2. Select the command option, click Table in the Categories box, locate and click Auto Sum in the Commands box, and then use the left mouse button to drag it to the appropriate location in the Common toolbar.
3. Close the Customize dialog box.
Now, with the insertion point in the cell where the sum is placed, click the (Auto Sum) button in the Common toolbar, Word calculates and displays the sum of the values in the cell or left cell above the insertion point. When there is data above and to the left, the top sum takes precedence.