Zombie Master Brain Trainer is a fun zombie killing cools game online. You mission is to defend your base and kill zombies by solving mathematical problems. You have 5 brains left and each time you let a zombie get to your base, you lose one. Each of the zombies is holding a sign with a mathematical operation that you have to resolve. There is a total of 10 levels with addition, multiplication, division, and a survivor gameplay. Use the number keys on your keyboard to type the digits and resolve each of the signs. Zombie Master Brain Trainer will test your mental agility and maths skills. How many zombies can you destroy with the help of mathematics?