Students put all their addition and subtraction skills together to solve equations.

Miss James needs your detective skills to solve some addition and subtraction problems.

Count back & use the relationship between addition and subtraction to subtract within 20.

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.

Christoph Selter, Susanne Prediger, Marcus Nührenbörger, Stephan Hußmann, Taking away and determining the difference—a longitudinal perspective on two models of subtraction and the inverse relation to ...