MAT 0018 - Developmental Mathematics I MAT 0018 - Developmental Mathematics I The major topics in the course are operations with signed numbers, fractions, decimals, ratios and proportions, percents, and geometric figures. The prealgebra topics will include properties of signed numbers, simplifying polynomials, and equation solving. Students must earn a grade of C or higher in order to advance to the next higher mathematics course which is MAT 0028. Semester Hours: 3 credit hours Semester all, Spring, Summer Fees: Lab fee Course Designations: Developmental Education