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 puzzle, math game, educational game, arcade game, HTML5 puzzle, mobile game, number matching, logic puzzle, addition game, school game, problem solving, number balancing, target number, interactive puzzle, kids game, fun learning, strategic thinking