While this is intended to be an accurate reflection of the current job, management reserves the right to modify essential functions of the job, or to require that other or different tasks be performed when circumstances change (i.e. emergencies, changes in personnel, workload, rush jobs or technical developments. Mathematical Skills: Ability to add, subtract, multiply, and divide in all units of measure, using whole numbers, common fractions, and decimals Reasoning Ability: Ability to apply common sense understanding to carry out instructions furnished in written, oral, or diagram form.