With three levels of difficulty this app to learn how to add and subtract is an educational way for primary school children to like math. From simple addition of a number at the easiest level to more complex operations to make learning to subtract a fun challenge. But if you're a math genius and want more, this math game for kids will make it a challenge by setting a countdown from 5 to 60 seconds. And if 10 moves aren't enough, modify the number to 100. Will you be able to respond before time runs out? In short, an entertaining way for children in infant and primary school to learn and review the addition and subtraction. A mathematical game for the little ones but which can be a challenge even for adults.