Apply basic math functions to solve workplace problems, calculate percentage, rate, ratio, decimal and proportion, create and interpret basic graphs and charts commonly used in manufacturing, calculate rate, ratio, decimal and proportion, calculate rotational velocity equations (RPMs), calculate speeds, feeds, and horsepower requirements for machining. Responsibilities include interviewing, hiring, and training employees; planning, assigning, and directing work; appraising performance; rewarding and disciplining employees; addressing complaints and resolving problems.