There are different methods for addition and subtraction. You may have used column addition and subtraction before but sometimes you can solve additions and subtractions using a mental method.

It's much easier to add 10 to 25, then add the 4. Let’s take a look at subtraction now. Subtraction is where we know the whole and only one of the parts. So this question 12 – 5 ...

Now that you've learned to do basic math in Excel, your calculations will never slow you down again. With addition, ...