The majority of teachers and parents would agree that students who wish to achieve confidence and success at this level should: Understand all the basic ideas and rules; Practise these rules and ideas by going through graded exercises; Understand why and how they made errors, so that hopefully they are reduced or eliminated in further exercises. This book has been written to fulfill these 3 vital requirements. This book should prove to be an invaluable aid for teachers, because it thoroughly covers the 10 major sub strands which are the basis of the New National Curriculum. In addition, there are carefully graded exercises which will provide confidence and success to the weaker students, while at the same time there are more difficult levels to extend and stimulate students of all ability groups. It will be very beneficial to parents, because it will provide them with a very structured and clear idea of the new syllabus, and what their children should know by the end of Year 5.