This took me 2 hours to make. Enjoy! P.S. This calculator has the Vista theme and it is very simple. Instructions: v1.0: You click on Num 1 and enter the first number then you click on Num 2 and enter the second number. Then, you pick an operator (+*-/). v1.1: You can now type with the numbers on your keyboard. the decmal point does not work because Scratch has limited keyboard support v1.2: I added the square root function. Sorry for a very late update. v1.3: I added the clear button. v1.4: The modulus (%) button works now. Tweaked the history list. History clears when you click the CE button.