I assume I can use Tex to do this but I can't find anywhere that tells me what the code is. I have found lots of pages that show how to make the really complex equations but nothing that shows how to make the very simple math problems used in an elementary school situation.
I always found that for those types of problems, it was simpler to use a CLOZE type question, with the numbers in a, two row high by one column wide table, and spaces as needed to make things line up. Once you make one question, duplicate it, make changes as needed for a new addition problem, then save it. Same general idea for subtraction, plus you can add another row to "complicate" the problem.
| + 532