At least you will be getting an answer to how he did quite quickly. I'd wait and see how that comes out (I know, easier said than done) and then see what can be done if his scores don't qualify.
Many schools will consider a child for accelerated class placement in the one area where his scores came out high if that is the case. As to whether he needs a gifted id for subject acceleration in math, that too will depend on your district. Here achievement scores are what are used for subject acceleration placement, not ability scores. Given his age, I wonder if they might be more willing to consider that type of placement even if the group screening test doesn't come out quite high enough. You could argue, afterall, that he could be a 3rd grader anyway.
