Shifengshou has a simple set of calculation rules and is highly systematic. It encompasses Addition, Multiplication, Subtraction and Division. This rapid calculation method is learnt just by one hand.

Mental maths is when you do calculations in your head instead of writing them down. Sometimes, it's just as quick to do calculations in your head as it is to write down every step. You can add and ...

Download the Addition & Subtraction lyric sheet so your class can sing along with the Geordie Pigeon. This Bitesize Primary animation explains additional methods for mental maths.