Q: How do I switch Apple ID on my I pad?

Go to settings > itunes and App Store> Apple ID and sign in with the Apple ID that you want to use. 

Yw!  Go to settings>icloud> sign out > delete account.  I hope that helps!

Here you go...

1. Sign out of iCloud, the iTunes Store, App Store, FaceTime, Find My Friends, Find My iPhone, and iMessage on each device that uses your current Apple ID for these services.
2. Go to My Apple ID (appleid.apple.com).
3. Select “Manage your Apple ID” and sign in. Forgot your password?
4. Select Edit next to “Apple ID and Primary Email Address.”
5. Enter the email address to use as your Apple ID, then select Save Changes. Apple will send a verification email to that address.
6. Open the email from Apple, then click Verify Now in the email. Didn't receive the email?
7. When the My Apple ID page opens, sign in with your renamed Apple ID.
8. When you see a message that verification is complete, you can begin using your renamed Apple ID. You should also update the features and services that you use with Apple ID.