This game works executive functions necessary for handling money and mental arithmetic operations arising.
Knowing that mental arithmetic is difficult to implement in children and subtraction is a mechanism prematurely lost in the insane conditions, this game finds its justification here.
Easy level: The patient should align parts and / or notes received to achieve the amount requested.
Average level: A sum is deposited, the patient should sort parts and currencies and calculate the as the amount remitted.
Difficult level: You have to pick and / or put in the trunk for the amount requested.