Zombies vs Dr. Maths description

Zombies VS Dr. Maths is very good training for mathematics.
Help players improve their math skill:
+addition
-subtraction
xmultiplication
÷division
The world has occupied by Zombies, no one but Dr. Maths can save the world.
Using the power of Math, He will defeat all the invasion of death.
Let's join the Dr. Maths team and help us save our planet.