Key to Olney’s Science of Arithmetic offers full, worked solutions to every example and clear rules for solving the problems.
This edition makes the ideas of arithmetic practical and easy to follow, ideal for students and instructors alike.
The text presents step-by-step methods across core topics such as reduction, fractions, decimals, profit and loss, taxes, and simple interest. It emphasizes a practical approach, showing how to apply arithmetic rules to everyday problems and classroom exercises. The material is organized to support learners at multiple levels and to fit classroom use with varied coursework.
- Full solutions to all examples for thorough practice
- Clear rules and explanations for problems and reductions
- Topics include fractions, decimals, proportion, interest, taxes, and more
- Designed for classroom use and self-study, with emphasis on practical application
Ideal for readers seeking a solid, workmanlike reference to arithmetic techniques and problem-solving methods.