Cobb's Explanatory Arithmetic, Number 1 is a book written by Lyman Cobb and originally published in 1832. The book is a comprehensive guide to arithmetic, providing explanations and examples of basic mathematical operations such as addition, subtraction, multiplication, and division. It also covers more advanced topics such as fractions, decimals, percentages, and the metric system.The book is designed as a textbook for students and teachers, with...