A fresh approach to arithmetic for students and teachers.
This updated schoolbook presents Osman Call’s decimal methods and new rules for computing interest, duodecimals, and efficient multiplication and division. The edition aims to be clear, practical, and useful in classrooms.
This volume shares the author’s drive to make arithmetic more accessible, with an editor’s notes and added material to guide learners. It blends original ideas with referenced methods from notable authorities, while emphasizing workable rules that stay true to the underlying math.
What you’ll experience
- Step-by-step decimal methods paired with traditional calculations to build confidence.
- Illustrative examples spanning money, interest, and everyday numbers.
- Practice problems that reinforce accurate, efficient computation.
- Editorial context about the book’s purpose and how to use it in study and teaching.
Ideal for readers seeking a historical, practical guide to 19th‑century arithmetic and its classroom applications.