Flashcard Ninja is a fun free (today) iOS app for learning addition and subtraction. This highly interactive app has students try to attack the correct number by slashing at them Ninja style w/ a swip of the finger as they learn their basic Math facts 1-20. Best of all, a user can record their own ninja sounds by using the iOS devices built in microphone.
I highly recommend checking out Flashcard Ninja by clicking here!!!
For my Pinterest board on Game Based Learning click here.
For more info check out Edshelf.