Math Gym with keep your mind healthy - exercise your brain once a day and expect great long-term results. Enhances mental arithmetic and alertness. Perfect both for kids and adults. - Touch screen support - Multiple difficulty levels - Beautiful design Categories: 1) Basic: 3 + 8 = ? 2) Comparison: 1 + 3 ? 4 + 10 3) Equation: 16 - x = 7 4) Operation: 4 ? 5 = 20 5) Memory: 10, +5, -2, +21... 6) Custom basic Icons made by Freepik.