My nine year old is similar in some ways, especially the advanced vocabulary, sometimes reversing letters and numbers, long attention span (at least for things he is interested in), interest in very unusual things, but he skipped lines instead of words and would lose his place while reading, problems lining numbers up (long division was difficult for him until we just let him have a whole sheet of paper for each problem and he had plenty of room to write) and we use Aleks for math now so it doesn't require that he do very many problems before it lets him move on. But my son's problem is visual motor integration and focusing when his eyes are tired.
When my son was tested at age 7 he could read, at most, one paragraph from a magazine like Newsweek as he did at the optometrist's office, before he would start skipping lines. But even with vision focusing and tracking problems he scored high on visual perceptual, so apparently his eyes were not tired at the time he took this test. If his eyes were tired I don't think he would have been able to do this. The educational psychologist and developmental pediatrician noticed that he seemed to have some vision problems when they tested him, so we took him to a developmental psychologist and we did vision therapy with flipper glasses at home. It helped some but he still doesn't read a lot on his own except on the computer--he likes text based rpg games, mmorpg games, and simulation games and I found that some of these require fairly high level reading ability and comprehension. He prefers reading magazines like Game Informer or Popular Science and National Geographic so the things he does read contain a higher vocabulary level than the books his older gifted friends read so I think this is why his vocabulary level and comprehension are probably higher than theirs even though one of his gifted friends (4 years older) reads all the time. My son often uses this advanced vocabulary in his speech and last year at a Cub Scout event this friend, who was at the event to watch his younger brother and my son compete in the pinewood derby, asked his mother (a teacher) why my son knew so many words and why he seemed so much smarter than the other kids he knew (including gifted kids). I loved it that the special education director was sitting right in front of her when he asked this and I am pretty sure he heard us talking. When we took the results of my son's WIAT to this special ed director he told us that they had never seen a child like my son before and it would be difficult to provide an appropriate education for him at our small town school, so we got nothing from our school. When we complained to the superintendent, he told us we needed to continue homeschooling. When we contacted the state gifted coordinator's office, they told me there is no law in our state requiring an appropriate education for 2E kids, so we have no choice but to homeschool.
I guess I hoped that the special ed director might be interested in how he was learning, and what simple things we did to allow him to learn--like typing and using the computer and doing spelling and tests orally instead of having to write and not requiring that he "color in the lines." I thought he might be interested, just in case they did see another kid like my son. But the sad truth is they don't care. In my state, they are not going to do any more than they have to do, which is one reason we have mediocre schools where we live.
My son has never had an IQ test because in addition to our not being able to afford it, I don't believe the results would be accurate because of his sensory and motor problems. The certified educational psychologist who tested him told us that my son would need to take the test over more than one day because of his issues. He also predicted a score that is in the range of what Davidson requires but we still don't plan to have his IQ tested. He will, however, take the Explore test and I am trying to figure out what accommodations to ask for.
I talked to some of my son's gifted public schooled friends about their "gifted classes" and they don't sound like much to me, just a one hour pull-out. His friend said they ask questions that my son would be really good at answering but they are not allowed to work above grade level in regular classes unless they take a test to skip a grade and score above 90%. Since each school is allowed to come up with their own tests and they don't like kids to be working above grade level and therefore discourage it, nobody passes them. So almost all gifted kids at this school are only doing grade level work and they are not challenged. I think these tests might be even harder for 2E kids to pass.
