Excerpt from Complete Intellectual Arithmetic: Adapted to Classes in Grammar Schools and Academies Mental Arithmetic is but another name for Arithmetical Analysis, which is the master-key to the treasury of Mathe maties. It unlocks the portals and bids the tyro enter and participate freely in the riches of this matchless science. By the aid of Analysis, the business man performs his multifarious calculations with readiness and accuracy, though the rules of the book have long since faded from his memory; by the application of its principles the scholar threads the intricate mazes of Astronomical Science. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.