First, 16 oz. would be the equivalent of 1 lb. so what you would do is multiply 8 by 2 to get a pound and keep doing that until you get 10 lbs. So if you were to count with your fingers, you could tell that one pound would be 2 fingers, and that 5 pounds would be 10 fingers. And if you were to have 4 hands, 10 pounds would be 20 fingers so your answer would be 20!
Hope this helps
