answer:Well, my uncle was about that old when he decided to get out of the restaurant business and do something a little more mechanical. He spent a few years as a building superintendent before going into plumbing and heating. As for whether you can learn math at this point, I don’t think age has anything to do with that. Some people are naturally not great with numbers, so if you can’t learn it now then I don’t think you could’ve learned it 20 years ago either, and that’s okay. Give it a try.