In CNC machining, you will use trigonometry in numerous tasks and processes. Trigonometry and other math applications will help you to determine tool location, coordinate values, and solve complex equations.
Discuss any math-related coursework that you have, and be sure to highlight your greatest mathematical strengths. Perhaps you have post-secondary education on math-related topics. Maybe you excelled in advanced math when you were in high school. Whatever your background may consist of, show the interviewer that you have the math skills required to succeed in this CNC Operator role.