Originally Posted by ElizabethN
I must have been remembering that some colleges require all scores.

I still think you should delete them. He will be able to match or beat that math score again (and if he can't, do you really want him in a college that requires a high score?), and he can bring the other two up in the future.
If you look at my post. It is a LINK to the College Board page detailing what particular universities require. It seems some want all the scores, and some only the top scores, while others let you superscore. It is not the College Board that decides this but different university admissions office. And those requirements may quite likely change particularly with the "NEW" SAT being implemented.

http://professionals.collegeboard.com/profdownload/sat-score-use-practices-list.pdf