This document offers instructional materials for a 60-hour course on basic math operations involving decimals, fractions, and proportions as applied in the workplace. The course, part of a workplace literacy project developed by Mercer County Community College (New Jersey) and its partners, contains the following: course outline; 17 lesson objectives pages, each of which is followed by a series of problems to be solved, an answer key, and a quiz; and two pretests and two posttests. The lessons cover the following topics: basic decimal concepts; addition and multiplication of decimals; subtraction and division of decimals; problem-solving with decimals; factoring into prime numbers; basic fraction concepts; multiplication and division of fractions; addition and subtraction of fractions; addition and subtraction of mixed numbers; problem solving with fractions; ratios and rates; solving proportions; decimal/percent/fraction conversions; solving percent problems; percent word problems and shortcuts; percent increase and decrease; and applications of percents. (CML)