I would ask, but not get upset about this yet. My memory is weak on this, but there is some type of algebra-readiness exam that is used in many school districts in the US, including the one I'm in and it's routinely given here to honors students who are accelerated in math prior to placing me in Algebra, regardless of grades etc in Pre-Algebra. There is also a small list that must be checked off here that includes grades, test score, and something else I can't remember.. The key is, chances are your ds will do a-ok on the exam! If he doesn't, he still has his grades, his successful completion of all Pre-algebra coursework, his teacher recommendation etc. If the school does come back and say repeat Pre-algebra, you have plenty of data to successfully advocate with to prevent that from happening.
Best Wishes,
polarbear
