This is a casual game in which there are four operations that are calculations from zero or more input values to an output value, in the start screen. You need to be careful that select correct operation. Gradually, the speed of the game is increased to make you confused. This game is very interesting. Christmas Math Game,math game,calculation game,puzzle game,addition,subtraction,multiplication,division,online game,free online game,Christmas activities,brain training,math skills,holiday games,educational game,number game,Christmas math challenge