Math Best - Mental calculation challenge

Why use a calculator for what your brain can do? Math Best allows you to train yourself efficiently. Calculating mentally enhances your thinking skills at school and at work. It creates new neuronal connections and enables you to think faster and better. It's a quick and simple exercice for people of all ages. Features: - choice of operation : addition, substraction, multiplication, division - or a mix Train and challenge yourself. Challenge your friends Suitable for everyone, from kids to elderly people to train their brain