Interestingly, my DD, who is a whiz with math facts and anything of that sort (state capitals, location of countries...anything straight memorization) and also a fantastic speller, doesn't score as highly on vocabulary as one would expect. I mean, it's not terrible, but considering her other skills, it's a bit of a weakness. Low 90s, percentile wise, when she takes a standardized test; other scores are higher. (shrug) I would say vocabulary is a higher level skill in a lot of ways.
Kids are funky and brains are interesting. Her GT class was all over the place with math fact fluency. Some were like my daughter and others really struggled with it. This is in a class where some children have major math talent.
