Comprehensive and easy to use, the revised and updated 5th edition covers every practical math problem that automotive technicians will face on the job. The easy-to-read chapters feature step-by-step instructions, diagrams, charts, and examples to make the problem-solving process a snap. The presentation builds from the basics of whole-number operations to cover percentages, linear measurement, ratios, and the use of more advanced formulas. With a special section on graphs, scale reading of test meters, and invoices found in the workplace, this text is tailor-made for students in any automotive course of study!