Reprint of the original, first published in 1841.

Excerpt from Key to Willett's Mental and Practical Arithmetic: Solely Designed for the Use of Teachers In the following pages he ofl'ers a plain and concise Key to a very plain and unpretending work, leaving to his fellow-teachers the task of deciding on its claims to excellence of plan and execution. The. Corresponding page in the Arithmetic is given at the top of each page of the Key and the figures over each example point out the number of the example in the Key. 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.