Thanks for the responses so far. I think I got too wordy in my original post (I have a terrible tendency to that) and may have made my real question too murky.
DS has been able to add and subtract in his head (including 20 digit numbers) since he was 3.5 or 4ish. So, he's known his facts well for quite some time and when I compared him to his classmates last year (when I worked in his classroom) I could see that he knew them much more quickly than the other kids. So I'd never worried about speed. But, apparently, both his 3rd grade math teacher and his regular 2nd grade teacher wanted him to be able to do the 100 problems in five minutes.
When I learned this, I printed out some 100 problem/5 minutes worksheets at home and had him do one a day. Within 4 days he was able to do them easily. Yesterday, he scored his first 100% on the timed addition test. BUT, the rule is that kids have to get 100% THREE TIMES before they can move to subtraction and then subsequently on to multiplication.
So, since they know that DS is good at math, do you think it is within my rights to ask that he not have to get 100% THREE times (and thus spend 2 more weeks on simple addition) or do you think we just have to play by the rules? Is the teacher going to roll his eyes and think, "There they go again asking for special accomodations!"
