Prolonged, extensive or considerable standing/walking; assists with lifting and moving patients, supplies and equipment; considerable reaching, stooping, bending, kneeling and crouching; work more than eight (8) hours but less than twelve (12) hour shifts. 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.