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Changing Units in the Customary System

In this lesson, we explore the comparison of weights between a 1-pound book and a 24-ounce catalog. By analyzing the conversion of pounds to ounces, we learn that 1 pound equals 16 ounces. Therefore, when calculating, a 1 lb book weighs 16 oz x 1 = 16 oz, and converting it reveals it actually weighs 28 oz. This makes the book heavier than the 24 oz catalog, illustrating key concepts in changing units within the customary system.

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Changing Units in the Customary System

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  1. 3 4 Which weighs more — a 1 -lb book or a 24-oz catalog? Think of the relationship between pounds and ounces. 1 lb = 16 oz 16 3 4 3 4 To change 1 lb to ounces, multiply 1 by 16. 4 3 4 7 4 16 1 3 4 Write 1 as an improper fraction. Then multiply. 1 • 16 = • 1 3 4 To 1 lb book weighs 28 oz. It is heavier than the 24-oz catalog. COURSE 2 LESSON 4-8 Changing Units in the Customary System = 28 4-8

  2. 2 3 4 1 4 3 COURSE 2 LESSON 4-8 Changing Units in the Customary System Complete. 1. 56 in. = ft 2. 6 qt = pt 3. 26 fl oz = c 4. 5 lb = oz 1 2 13 1 2 88 4-8

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