This clear, friendly SAT Buster book is ideal for helping Year 6 pupils score the best marks possible for Mental Maths questions in the Key Stage 2 Maths SATS. It contains hundreds of questions to help students practise doing calculations in their heads - covering everything from doubling to division, perimeters to percentages and much more. Four realistic Mental Maths practice tests are also included, with free online audio files for each one. CGP SAT Buster Maths books are also available for Number (9781847621580) and Shape, Measures & Data (9781847621597) - answers to all three of these books are printed in a separate Answer Book (9781847627865).