Be careful! You can improve your arithmetic skills while playing action war game and you will have a lot of fun! The mathematics level is about middle school and junior high school. Kindergarten / preschool children at all ages, primary school and elementary school students can play 1st levels. Helps to improve memory and brain skills. Recommended by teachers, best for boys, girls and kids. ■21 levels with 4 operations Addition. subtraction, multiplication, division and mixed levels. ■Game center support: You can compare your top best score with others in the world ■Unlock all levels First three levels are free to play, unlock other new levels for more fun.