iCloud Backup
Below are the steps on how to complete an iCloud backup to be completely safe.
Note: Some apps don't save documents/projects to iCloud and you will lose them if you don't back them up a different way.
1. Go to Settings
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2. Tap on your name in the top left corner, then tap on 'iCloud'
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3. Tap 'iCloud Backup'
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4. Tap 'Back Up Now'
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Your iPad should now be backing up to the iCloud.