Introducing a concise guide to all the Application of Number techniques required by Level 2 and 3 students in any subject. This book covers all the essential knowledge and techniques required to pass the Application of Number tests by showing students how maths can be applied in the real world. Maths is explained in a real-life context, using everyday examples that bring the subject alive. Unlike traditional maths books it focuses on the application of mathematical theory to the world around us. Starting with basic principles the text works through to apply mathematics to relevant examples and applications that bring the subject into a clear and understandable context for students and teachers alike. Explanation is followed by exercises, turning knowledge into learning. The book's emphasis is on learning and practising techniques, rather than portfolio-building. Use it for revision and external test preparation, making use of the practical definitions, clear explanations and numerous of practice opportunities provided.