You do remember that you're dealing with an organization that - at the top level - decided that 3.4 (oz) was close enough to 3 (oz) that they couldn't be bothered to update the signs and the PA announcements, right? HQ staff who, at goalie points out regularly, can't add up how many items they found at checkpoints in a given week? Something tells me that math isn't their strong point. ;)
Strong is a relative term in this case. They are just as good at math as they are physics, chemistry, medicine, psychology, psychoanalysis, phrenology, anatomy, English and physical education and quite a few other disciplines. In fact they are so equally prepared in many of these, it would be very difficult to actually determine which one at which they are the best.