This educational text introduces the octimal notation and shows how to express numbers, handle whole and fractional units, and perform common operations. It guides readers from the basics of digits and radix through place value, naming of periods, and the mechanics of addition, subtraction, multiplication, and division in an eight-based system. Clear rules and plenty of worked examples help learners apply the method to real problems, including money, measures, and time.

You’ll discover how to read and write numbers in octimal form, convert between units, and use the point to separate superior from inferior denominations. The book also covers compound numbers, reduction, and practical topics like currency tables, measurement systems, and the cube root process, with step-by-step instructions and drill problems.

Learn the foundations of octimal notation and its place-value logic.
Practice basic arithmetic and learn to manage superior and inferior units.
Explore more advanced topics like ratios, proportions, cube roots, and reductions.
Work with real-world applications in money, weight, capacity, length, and time.

Ideal for readers seeking a historical approach to numeric systems or a self-contained guide to base-8 arithmetic, with structured lessons and plenty of exercises.

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