Math defender is an arithmetic math game with a quite new challenge. In this game you need to defend your gems from the bird monsters. Each bird monster has a code number on it. You have to fire the feather on the bird monster using your cannon. For doing it you must first solve the question appearing on the cannon. Now look up for the bird which is showing the answer of the question. Now click on the bird monster. The cannon will shoot a magical feather to make it return back. Each level shows you different type of question and different type of challenge. Win all 9 levels to win the game. Clicking on wrong bird will take a life. If you loose all the gems in a level or loose all the life, it will be game loose.