By using word problems relevant to agricultural occupations, this workbook presents a concept-oriented approach to competency development in seven areas of basic mathematics: (1) the expression of numbers as figures and words; (2) the addition, subtraction, multiplication, and division of whole numbers, fractions, and decimals; (3) ratios and proportions; (4) percents; (5) problem solving; (6) geometry; and (7) graphs and charts. For each competency area, the workbook presents a series of word problems designed to reinforce student learning and to demonstrate the applicability of the mathematical concepts to the agricultural work environment. An answer key is appended. (JP)