A Table of Products : by the Factors 1 to 9, of All Numbers From 1 to 100,000, by the Aid of Which Multiplication May Be Performed by Inspection
Samuel Linn Laundy
Out of stock
Format: Book (Paperback / softback)
Table Of Quarter-Squares Of All Integer Numbers Up To 100,000, By Which The Product Of Two Factors May Be Found By The Of Addition And Subtraction Alone
Samuel Linn Laundy
Out of stock
Format: Book (Paperback / softback)