You can practice multiplication tables anywhere, and in this game that happens to be underwater! You steer an otter in a swimming competition against other players. Each time you will see equations that have a part missing. While swimming you will encounter a row with four numbers, of which one is the right answer to the equation you need to solve. Swim through this and you’ll gain extra speed so that you can overtake your opponents. The more equations you get right, the faster you will get to the finish line.