Quick Math Practice - Fast Arithmetic Game For Kids And Adults

We have 4 level, and infinities on each, for each level,on each time you reach 100 score, the range number will be expand, for example : the first time the number random in [-10, 10], after 100 score, the range expand to [-20, 20]... The concept of the game is: you need to pressing corresponding number to kill the monster. you have 10 “Heart”, if one monster collision on ground you loss one “heart…