Mathboard Duel
This app is a timed math practice against the computer or another person. It does not include the ability to solve problems on the chalkboard, like chalkboard math or chalkboard fractions. If you're looking for a timed mental math practice, this is fine. If you're looking for something you can work on the chalkboard, you will want to pass. Maybe in the future, they will make an update to include that. Hope so...