Measurement Ounces/Pounds Lesson Topic Index  | Grade 3 Math | Elementary Test Prep | StudyZone
 The customary system is a system of measurement used in the United States to describe how long, how heavy, or how big something is.

 Ounce and pound are units for measuring weight.

 Weight: 16 ounces (oz.) = 1 pound (lb.)

 Conversions The chart above shows the relationships between ounces and pounds. You can use the chart to change a measurement from ounces to pounds or from pounds to ounces. Bob's kitten weighs 3 pounds.  How many ounces is this? To change from a larger unit of length to a smaller unit of length, multiply. 3 lbs. =  ounces Since, 1 lb. = 16 oz. 3 x 16 = 48 So, 3 lbs. = 48 oz. Ben's guinea pig weighs 32 oz.  How many pounds is this? To change from a smaller unit of length to a larger unit of length, divide. 32 oz. = lbs. Since, 16 oz. = 1 lb. 32  ÷  16   =   2 So, 32 oz. = 2 lbs.

 Remember: The customary system can describe an object's length,  weight , or volume.

Click on the scale for practice.

 Topic Index | Grade 3 Math | Elementary Test Prep | StudyZone Created by Carol Carroll Updated by Pat Delia Copyright © 2001-06 Oswego City School District