This book is a guide to arithmetic, written by Catharine Esther Beecher, an American educator and writer. The book is divided into three parts, and covers topics such as addition, subtraction, multiplication, division, fractions, decimals, and percentage. It is designed to be accessible to students of all ages and abilities, and includes numerous examples and exercises to help reinforce the concepts presented. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.