Rapid Calculations – A. H. Russell (1930s)

S$49.00

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Rapid Calculations – A. H. Russell (1930s)

S$49.00

Title: Rapid Calculations

Author: A. H. Russell, Sir E. John Russell (foreword)

Publisher: The Gregg Publishing Company. No date, research reveals it to be circa 1930.

Condition: Hardcover, no dust jacket. Very good. Covers bright, but with a slight stain. Slight foxing to endpapers and edges. Text clean, binding tight. 276pp., app 7″x 4.5″.

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SKU: rapid-calculations Categories: ,

A textbook on how to quickly make mental or paper calculations, written in an age prior to the digital calculator. Written by a Head Master, this book gives shortcuts on how to perform even complex calculations, such as working the addition and subtraction of recurring decimals, calculating compound interest, and cubing very large numbers. Practice exercises included.