Your iPad may end up with a lot of apps hanging around running in the background of your iPad, which can eat up some memory and battery life.
So how do you close programs that are running in the background? Simply double tap the Home button on the iPad which will present a list of apps running in the background. Swipe up with your finger on the app page until it moves up and disappears.
It is also a good idea to reboot your iPad once in a while to give it a fresh start. View this article to learn how to reboot your iPad: How to Reboot Your iPad