This book is for anyone studying Key Stage 3 Mathematics in Secondary School years 7, 8 and 9. The book will help you to overcome any difficulties or gaps in your knowledge. Parents or carers, you may wish to update your maths skills, in order to help your children with their homework. Maths tutors, you may find the exercise questions and answers a useful addition to your teaching. The Topics include: Place Value, Rounding, Estimating, Negative Numbers, Square and Cube Numbers, Indices, Reciprocals, Standard Form, Prime Numbers, Factors, Multiples, Multiplying and Dividing, BIDMAS, Fractions, Decimals and Percentages, Simple Interest, Ratio, Proportion and Bounds.