Mathematics texbook with exposition, examples and exercises, covering the requirements of the Core Skills Unit Application of Number for General National Vocational Qualifications (GNVQ) up to Levels 3 and 4 (Advanced). A section at the back of the book gives about 12 Assignments in each of five vocational areas: Art and Design, Business, Health and Social Care, Leisure and Tourism, Manufacturing. A heavily edited and extended version of Modular Mathematics for GCSE by the same authors.