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.

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.

Numbers game: vision isn't necessary for counting skills Subtract 8 from 52. Did you see the calculation in your head? While a leading theory suggests our visual experiences are linked to our ...