ht each kilogram of a person s weight 20 milligrams of a drug is to be given WE dosage should be given to a person who weighs 200 pounds Use 1 pound 0 45 kg Multiply by 10 for each step to the right X10 km hm dam m dm cm mm Divide by 10 for each step to the left 444 44 mg 4 000 mg 1 800 mg 8888 89 ma 10