Icanology LLC today released MathGirl Addition House, a math game for iOS. Designed just for girls, MathGirl combines cute, fresh graphics and the engagement of gaming with a visual, right-brain approach to numbers. Five-year-olds can tackle the first few levels. Older girls and even adults will be challenged by the higher levels. MathGirl Addition House actually teaches. By learning to see numbers in patterns, players earn stars to buy prizes to build their personal houses.