Previously we learned how to define and call functions that would execute some code, and then we learned how to define and call functions where we could send one or more input values to the function, to be used when the function's code was executed (for example, a createRectangle function where the input values were the dimensions of the rectangle).

Sometimes we want to create a function that will do a calculation for us and then send back the result. We call this "returning a value." The code block to create this type of function is (note the extra "return" part):

As with the other function code block, you can also click on the blue setting wheel (gear icon) to add input values. 

The example below shows how it works.