reinstalling apps

Try first to check if the app(s) is still on the iPad, use the App Library to search the app(s) you are looking for, see -> Use the App Library and Home Screen to organize your iPad apps - Apple Support

• If you have find the app, tap & hold on the app, then drag to the Home screen & drop it.

You have quick access to App Library by tapping the App Library icon in the iPad's Dock.

If the app(s) are no longer on the iPad, download again from the App Store.