MATHEMATICAL SKILLS - Intermediate Skills: Ability to add, subtract, multiply, and divide in all units of measure, using whole numbers, common fractions, and decimals and to calculate figures and amounts such as discounts, interest, commissions, proportions, percentages, area, circumference, and volume. Within ninety (90) days of hire, BLS Certification with a designation of either BLS Provider or Healthcare Provider from either the American Heart Association or American Red Cross or Military Training Network.