The X-ray mathematical apparatus was completely stagnant, and its inventor was bored. Go into the X-Ray math addition game and get it working. Tiles with question marks drawn on them will appear on the left side. Move them in the direction of the gray arrow under the x-rays. There you will see the addition example shown. Solve it, and then place the tile in the cell on the right that matches the correct answer. If it is incorrect, the card will not snap into place. Show how strong you are in arithmetic, and if not, training will not hurt you.