Wolfan777, the explanation is simple, tell your mom there is nothing magic about it. The way this works is just a math problem. On the top left corner of each box on top of the little pillars, there is a number. that number is one of the geomitracal progression. Those numbers are 1, 2, 4, 8, 16, 32, 64, 128, 256. These numbers can add up from anything from 1-100 easily. Organized as in this scene, they are able to add up from 1-100. The smart people that invented this cool thing have made it so when you choose all of the boxes with your number, the number in the top left corners of the ones you chose add up to exactly your number. get it?