The college has a story of their own that gives a little more detail: he was there 3 years, and got 5 degrees: all associate of arts, in history, social sciences, social behavior and self-development, arts and human expression, and science and mathematics.
I assume part of the trick here is that there's substantial overlap in the requirements for each degree: all of those but history are actually interdisciplinary studies degrees, each with a different "emphasis."
Not to put down a 9-to-12-year-old taking community college classes, obviously that's impressive in its own right. It's just that there's probably a little bit of a gimmick involved.