Each level has boxes with numbers in them. There is a target number listed at the top. Move numbers from one box to another, so that the sum of the numbers in each box matches the level`s target number. Swap numbers by clicking one number in one box and then another number in the other box. number matching game,logic game,educational game,arcade game,math skills,number skills,problem solving,critical thinking,spatial reasoning,number recognition,brain training,puzzle game,educational app,number puzzle,logic puzzle,arcade,skill,logical,educational