Vocational Algebra Author:George Wentworth This early works on Vocational Algebra is a comprehensive look at the subject. Chapters include; Algebraic Expressions, Equations, Negative Numbers, The Fundamental Operations, Fractions, Proportion and Miscellaneous applications....Many of the earliest books, particularly those dating back to the 1900's and before, are now extremely scarce and ... more »increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.« less