The Schoolmaster's Assistant, Being a Compendium of Arithmetic both Practical and Theoretical was an early and popular English arithmetic textbook, written by Thomas Dilworth and first published in England in 1743. An American edition was published in 1769; by 1786 it had reached 23 editions, and through 1800 it was the most popular mathematics text in America.[1]
Although different editions of the book varied in content according to the whims of their publishers, most editions of the book reached from the introductory topics to the advanced in five sections:[2]