If you have a list of values all in one column, you can use AutoSum (in the Formulas ribbon) to quickly obtain the sum.

You can use AutoSum with a horizontal list of values too!

AutoSum is a powerful formula, however you need to make sure of one thing when using it...

Only use AutoSum if the cell containing the sum is **directly** **in line** with the cells you're summing.

If you attempt to AutoSum a list of values in a cell not in line with your values, AutoSum will not recognize what numbers you're trying to sum and won't work.