With a very "delicious" graphic environment and a "game" type interface, it is the ideal application to motivate children to master the two most basic and important operations in mathematics: Addition and Subtraction The application keeps your best performances to motivate you to do more and better Level 1 - Numbers between 1 to 9 (20 exercises in 2 steps) Level 2 - Numbers between 1 to 50 (30 exercises in 3 steps) Level 3 - Numbers between 30 to 99 (30 exercises in 3 steps) Level 4 - Numbers between 100 to 999 (30 exercises in 3 steps)
