Yes, it does. You may perform basic mathematical operations in most input boxes, including addition (+), subtraction (-), multiplication (*), and division (/). You may also use parenthesis (  ) as part of your operations.

The screenshot below shows math-on-the-fly turned on for the highlighted input, Floor area. When you click outside of the input box, the result of the math operations is displayed, in this example, 2000 square feet.