I'm guessing I have a reason to brag? Just found out today my DS2.7 can add ... not only 2+1 or 3+1 but I saw him do math problems where he had e.g. 10+7 and was to choose the right answer from 14 and 17 ... he did about 10 of these with ease and after that I just stopped watching. It started to freak me out! lol ... I don't think that's a "normal" skill for a 2.5 year old, is it?