First of all, note that this is made for students in grade 1, but can be used by all. The object is simply complete the equasion. Don't use your skips alot because your score will decrease by 4. Good luck.
Clint Hamada on YouTube gave me the idea on this and once I had it in my mind, I couldn't stop working. Plz love and look at Clint Hamada's chanel and my other games that I have made.