Export Documents and Data from iPad
My recommendation would be to check what's taking up your data. To do this:


On your iPad go to Settings
Tap on General
Tap on Storage and iCloud Usage
Under the Storage options tap on Manage Storage
Wait a little while for all the apps to be populated
Once it stops updating, your apps will be listed in order of what's taking up most of the space
Tap on the apps in the list to view more details about what's taking up space


By following the above process you'll get a much better idea of what's taking up space and will be able to take steps to manage that.