Part of the Abacus toolkit, the textbooks provide: — the perfect balance of practice and problem-solving for each area of maths; — pictorial representations to support children's conceptual understanding; — clearly laid out questions with instructions that are easy to follow; — a self-assessment opportunity on every page; — colour to indicate the different maths areas within the programme. Series Editor: Ruth Merttens Authors: Jennie Kerwin and Hilda Mertten.