# Sum

Updated: 02/01/2021 by Computer Hope

**Sum** may refer to any of the following:

1. In mathematics, a **sum** is the total obtained from adding numbers. For example, the sum of two and two is four.

2. **Sum** is chat slang for *some*.

3. In Microsoft Excel, **sum** is a formula syntax for adding, subtracting, multiplying, dividing, or getting the total numerical content of specific cells. Below are examples of how the sum formula may be used.

*=sum(a1+a10)*— adds cell A1 and A10.*=sum(a1-a10)*— subtracts A1 from A10.*=sum(a1:a10)*— adds all cells in the range between A1 and A10.*=sum(20+30)*— calculates 20+30 to show 50 in the cell.*=sum(a1+30)*— takes the value in the A1 cell and adds 30.*=sum(10*a1)*— multiply the value in the A1 cell and adds 30.*=sum(2/a1)*— divide 2 by the value in the A1.

Tip

When a formula is added to a cell, its results are what show in the cell.