Sushi Monster is an addition and multiplication app that requires more thinking than just your basic recall of facts. The player has to figure out which order to choose the numbers to reach a target number (top-left corner of the pictures), and if not done correctly, will not proceed to the next level. Early levels are fairly easy and basic recall of math facts. Later on, however, it includes much more difficult mental math work. The levels are also timed; this affects the student's ability to progress to the next level. Quick thinking, fact accuracy, and problem solving skills are necessary to feed the sushi monster. Your students that need a challenge will love this!