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.

Let's explore addition and subtraction This collection contains curriculum-relevant videos, quizzes and games to help Year 6 and P7 Maths students with: mental addition strategies adding and ...

Researchers from 4 projects with a problem-solving approach to teaching and learning multidigit number concepts and operations describe (a) a common framework of conceptual structures children ...

Under the common core, there are many ways to do subtraction—none of which involve borrowing and carrying.

The present paper describes the success, the methods (mental, informal written, standard algorithm) and the strategies of informal written arithmetic to be observed when 300 elementary students worked ...