This app is sure to load it. Who thinks that can calculate the number of plus, minus, multiplication, divide, try it, try it, it is both difficult, it's easy, it's both P1, 2, 3, 4, 5, 6, 6, 1 m 2 .3 m 4 m 5 m 6 can test yourself by the game app is divided into 5 levels of difficulty, the number is divided into primary level, more than 10000 items, but you will test. You can use it to practice arithmetic or mathematics course.

Individual certification There will be no duplication. You will get the fullness of it even if you do not have an Internet connection