What are they Testing? (Score 1)

As a math geek raised in a family of math geeks who hangs out with math professors on occasion I have to ask what are they testing. Most high level math professional make mistakes with arithmetic. In fact I've heard many math magicians state that as you get more advanced you get more likely to make mistakes at the simple stuff. Yes you have to pay attention to details in math but primary school level math is really on the level of elementary school reading comprehension.