How to reset my iPad.

Welcome to Apple Support Community!

To reset your iPad to factory settings do these steps below

1. Back up your device.
2. Sign out of iCloud and the iTunes & App Store.

• If you're using iOS 10.3 or later, tap Settings > [your name]. Scroll down and tap Sign Out. Enter your Apple ID password and tap Turn Off.
• If you're using iOS 10.2 or earlier, tap Settings > iCloud > Sign Out. Tap Sign Out again, then tap Delete from My [device] and enter your Apple ID password. Then go to Settings > iTunes & App Store > Apple ID > Sign Out.

3.Go back to Settings and tap General > Transfer or Reset [device] > Erase All Content and Settings. 

You also could use a Mac or PC to restore the device to factory settings https://support.apple.com/en-us/HT201252

Hope this helps ;)

Go to Settings > General > Reset > Erase All Content and Settings