You should be able to go to accerories on you computer and call up a calulator. At that point you get an option under view that lets you go to scientific. Once there, you will see ^2 and ^3, the ^ means the power of, so ^2 is squared and ^3 is to the third power. So if you used the number 2^2 you get 4 or 2 times 2, but if you use ^3 you get 8 or 2 times 2 times 2.
Try it.