Daboll's Schoolmaster's Assistant: Improved and Enlarged, Being a Plain Practical System of Arithmetic, Adapted to the United States (1818) is a comprehensive textbook on arithmetic written by Nathan Daboll. The book is designed to provide a practical and easy-to-understand approach to arithmetic that is specifically tailored to the needs of American students. The text covers a wide range of topics, including addition, subtraction, multiplication, division, fractions, decimals, and more. It also includes practical applications of arithmetic, such as calculating interest, time, and distance. The book is written in a clear and concise style, with numerous examples and exercises to help students master each concept. Overall, Daboll's Schoolmaster's Assistant is an essential resource for anyone seeking to improve their arithmetic skills, whether for personal or professional reasons.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.