Downloading a game that is centered around pure arithmetic might not sound like everyone's idea of a great time, especially when the App Store is home to a plethora of sporting, simulation and action games. With that said, they do say that a change is good for the soul, so where is the harm in having some fun directly from the palm of your hand while also feeding your brain the food it needs to stay active? Math QuizUp is a new game for the iPhone, iPad and iPod touch that allows a user to test their arithmetic skillsagainst other gamers in a mathematical face-off.