Talk about the math skills you would bring to this role as a water treatment operator. How have you applied math in any previous jobs?

"I would come to your plant as a water treatment operator with very solid math skills. During high school, I successfully passed levels through Calculus One and have a great understanding of the calculations needed to quickly convert volumes and calculate area measurements. In my current job, my daily logs include some basic math calculations and utilizing data. My work has always been error-free and I take great pride in that fact."

You can answer this question briefly and if you recall, cite your math grades during your education. If you've taken advanced math courses, discuss this as well. Then be sure to reiterate you know simple math concepts will be a part of the work of a water treatment operator and touch on any math you've had to calculate in any previous roles that you've held.