DS7 is very mathy as well. He pretty much refuses to write anything down. I took him in for an AT eval because of his dyspraxia and the guy tried to get him to use Modmath. We typed in 200/3 as a long division problem and DS immediately wrote 66 R. 2 on the top without showing any work or putting any thought into it. Kind of defeats the purpose of the app! I'm not sure how accurate his WISC scores are since they were done over a year ago after a traumatic brain injury, but it was his PRI that was very high in the 140's and WMI was average. Doesn't make a lot of sense. I think in his case he may have mild attention deficit disorder or the brain injury affected his working memory.