The first of three volumes of a mathematics training course for Navy personnel, this document covers a wide range of basic mathematics. The text begins with number systems, signed numbers, fractions, decimals, and percentages and continues into algebra with exponents, polynomials, and linear equations. Early chapters were designed to give insight into the theories behind computational processes. Logarithms, the slide rule, proportion, and functions are also covered. The final chapters discuss complex numbers, quadratic equations, geometric figures, and trigonometry. Related documents are SE 014 116 and SE 014 117. (JM)