My daughter is like this and I see it as a retrieval problem. she has a hard time pulling random facts from long term memory. Her working memory on the WISC was 96th percentile but if you ask her 8X7 she looks blank. She knows the answer but it might take 8 seconds for her to say it. It seems from ADHD in her case. She has a big problem with organization and I think the file cabinets in her brain are about as disorganized as her bedroom. If you don't know where your 8X7 file is it's going to take a while to pull it out.
