Henderson's Intellectual and Practical Lightning Calculator

by J A Henderson

First published in 1900, this classic manual to mental arithmetic offers practical techniques for performing quick calculations in one's head. Written by J.A. Henderson, a renowned accountant and teacher of mental arithmetic during the early 20th century, this book is a must-read for those interested in improving their math skills.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of...

• Format: Paperback
• Language: English
• ISBN: 1021470376
• ISBN13: 9781021470379
• Release Date: July 2023
• Publisher: Legare Street Press
• Length: 112 Pages
• Weight: 0.37 lbs.
• Dimensions: 0.2" x 6.1" x 9.2"