The simplest calculator to use is just a click away, do your calculations quickly and smartly. Don't you feel like performing operations by typing on the keypad? Perform your calculations with the power of your voice alone. Try performing calculations like "15 + 222.2" or "55-1". In case you don't feel comfortable with voice calculator method, you can always use the old caulking machine. The simple calculator application was designed to show a simple layout to allow you to perform calculation