Pupils can quickly get to grips with KS2 mental arithmetic using questions that become progressively more challenging. Fully in line with the new National Curriculum. - Clear explanations and worked examples ensure pupils grasp concepts quickly.- 'How did you do?' checks at the end of each topic allow pupils to self-evaluate their work.- Regular progress tests assess pupils' understanding and give them the chance to recap on their learning.- Answers to every question provided in a pull-out section at the centre of the book.