This was a great app! It helped a lot with Summer mathematics, kinda getting back into the swing of things. The only problem I have with it is the timer. It gives you only 10 seconds to answer as many problems as possible, and some people cant handle that. For me, it definitely helped make it more fun! It was the race against the clock that made it enjoyable for me, and my high score is 13! For each question you get right, it adds two seconds to the timer, so try to get they right quickly! All in all, it was definitely worth downloading. I mean c’mon, it was free! It even downloaded in less then 15 seconds, unlike other apps that feel like they take forever. Great App!