OPTIMIZED FOR iOS 10.3 Game to practice multiplication tables and mental math. The game has different levels. The kid has to solve math calculations to get shields. When enough shields are received the next level can be achieved. The kid has to search the multiples of a specific number. (e.g. the number 35 has the multiples of 3 and 5) If the kid gets the correct multiple a shield can be placed. In a second game mode, the kid has to solve mental math problems with plus, minus, division, multiplication. Each correct answer is one protection shield.