Here's a list of multitouch gestures you can use on your iPad or iPad mini. Be sure that you have multitouch gestures enabled first (go to Settings, then General, then toggle the Multitasking Gestures switch to On).
1. Use a four or five finger pinching motion to close the current app and go back to the home screen.
2. Use a four or five fingered vertical swipe up to open the app bar at the bottom of your iPad's screen.
3. Use a four or five fingered horizontal swipe to move through open apps. Swipe right to left and you'll go back and forth through open apps.
For more, see the original article at the link below.
Master the Multitouch Gestures for iPad | OS X Daily
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