On a regular calculator, you just leave it it will off itself.
On a scientific calculator, press shift AC.
the power key turns on and off
To take off on an incline without switching off, ensure that your vehicle is in the correct gear for the slope. Gradually release the clutch while simultaneously pressing the accelerator to build up enough power to overcome gravity. Use the handbrake to hold the vehicle in place until you have sufficient throttle to prevent rolling backward. Smooth coordination of the clutch and accelerator is key to a successful launch on an incline.
599.25 - without the aid of a calculator !
6.43 without the aid of a calculator !
115.30 - without the aid of a calculator !
Take the steering wheel cover and pull the switch up.... most likely your stuck.
Hot Swap
9 dollars (without the aid of a calculator !)
Try switching off and removing the battery. Then re-insert the battery and switch on.
Straight off the top of my head - without any help from a calculator.... 10 dollars !
The previous answer was unfortunately misleading--there IS a key that serves the same purpose as the carrot key: "[yx]" key (directly below the "[off]" key), function exactly like carrot.
I don't think that's possible without the key.