When you perform calculations in a table, you reference table cells as A1, A2, B1, B2, and so on, with the letter representing a column and the number representing a row. Cell references in Microsoft Word, unlike those in Microsoft Excel, are always absolute references and are not shown with dollar signs. For example, referring to a cell as A1 in Word is the same as referring to a cell as $A$1 in Excel.
Reference individual cells
To reference cells in formulas, use a comma to separate references to individual cells and a colon to separate the first and last cells in a designated range, as shown in the following examples.
Reference an entire row or column
You can reference an entire row or column in a calculation in the following ways:
Reference cells in another table
To reference cells in another table, or to reference a cell from outside a table, identify the table with a bookmark. For example, the field { =average(Table2 b:b) } averages column B in the table marked by the bookmark Table2.