When I was a kid, I remember getting out a stack of my mom's recipe cards and making my very own set of math flash cards. I'd like to think they helped me learn my times tables, but nonetheless, it was useful practicing in the Summer months because I'd be ahead of the game when school started.
Whether you've got children, young cousins, or brothers and sisters that are in the throws of learning arithmetic, this Math Flash Cards iPhone app is a great way to test them on all the basics. And because it stores times and scores for each exercise, there's some extra incentive to want to do better! This app only costs 99 cents.