You can attempt to get compatible versions of the Apps if there are such versions available.
App Store: Install the latest compatible version of an app
http://support.apple.com/kb/ht5919
You will need to download the incompatible version to a device that can support it or a computer running itunes first using your Apple ID so it gets registered to your account. Once that is done you may be able to get compatible versions of the Apps by going into the Purchased Tab of the App Store on your iPad and tapping on the cloud icon of the App you wish to get. This will prompt you with a warning about the incompatible App, and then ask if you would like to download the compatible version.