Math Racer HD - Addition Publisher: Aprendium Genre: Released: 7 Aug, 2012 Size: 9.3 MB Price: FREE! Click here to request a review of this app App Store Info Description Power your race car by answering math equations. Choose the color of your race car and choose the numbers you want to work on. Try and set the fastest time possible as you develop your addition skills. Screenshots Screenshot 1 of 3