This app is different because it's not just fact recall. Students must use higher order thinking skills, number decomposition, and fact families to solve the fact. They are given the sum (whole) and it's up to them to come up with the addends (parts). I also like that there is not just one right answer. Students will discover different ways to make the same number. They will also learn how to use more than two numbers because the more numbers they use, the faster they will win the round!
This app is excellent "drill for skill" practice! *Redemption codes provided by Urbn;Pockets, but opinions are my own.