Learn mental arithmetic through 59 lessons on addition, subtraction, multiplication, division, squaring, and verification. Practice with timed training sessions and compete with friends via Game Center. Track progress and improve calculation speed.
Practice with interactive exercises and drills. Solve addition, subtraction, multiplication, and division problems. Track progress over time. Set daily challenges to improve mental arithmetic.
Learn facts through customizable . Choose operations like addition, subtraction, multiplication, or division. Set number ranges from 9 to 99. Practice problems without keyboard input. Track progress and adjust difficulty levels.