In this KS2 Maths article you'll find out how to use mental methods when doing addition and subtraction in your head. We also have KS2 Maths videos, a quiz and lots of examples.

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.

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.