Mental Math! The classic with over a million downloads returns in a brand new version. Boost your gray matter now! Here's a quick check: What's 7 × (4 + 9)? Needed more than five seconds? This can be better! With Mental Math you can playfully improve your mental calculation skills through various exercises. Image puzzles are an incentive to carry on practicing.
Kids Math Grids ($5.99) for 4 - 9 year old kids to practice the basic math skills of Addition, Subtraction, Multiplication and Division and help them improve their mental calculation accuracy and speed. The questions are presented in a grid format (5X5 to 10X10 cells) with unlimited number of combinations and multiple levels. Each grid can be printed if needed.