Customary Units of Weight

Name Date Customary Units of Weight How many more ounces than 3 pounds is 52 ounces? To solve the problem, rename the number of pounds as ounces. Then subtract. Multiply the number of pounds by 16 to get the number of ounces. Units of Weight 1 pound (lb) t 16 ounces (oz) Multiply to rename a number of larger units as a number of smaller units. 3 lb u 16 oz/lb t 48 oz Subtract to find the difference in the number of ounces. 52 oz s 48 oz t 4 oz 52 ounces is 4 ounces more than 3 pounds. MORE PRACTICE Rename the measures. 1. 8 lb t 128 208 3. 13 lb t oz 2. 12 lb t oz 192 4. 20 lb 1 oz t oz 321 oz 5. 7 lb 5 oz t 117 oz 6. 11 lb 15 oz t 7. 8 lb 2 oz t 130 oz 8. 4 lb 4 oz t 9. 7 lb 2 oz t 114 oz 10. 11 lb 6 oz t 182 oz 12. 14 lb 9 oz t 233 oz 11. 9 lb 11 oz t 155 oz 191 68 oz oz Write oz or lb for the unit you would use to measure the weight of each item. oz 13. orange 16. chair lb 14. spoon 17. marble oz oz lb 15. suitcase 18. table lb Compare the measures. Use <, >, or U. 1. 5 lb 1 oz U 81 oz 2. 1 lb 5 oz < 22 oz 3. 7 lb 11 oz > 120 oz 4. 8 lb 14 oz < 143 oz Problem Solving 5. Cody has 2 pounds 10 ounces of flour. He uses 1 pound 15 ounces for baking. How many ounces of flour does Cody have left? Explain how you found your answer. 11 ounces; Explanations will vary. Sample explanation: First I multiplied to rename 2 pounds 10 ounces as ounces; (2 lb T 16 oz/lb ) R 10 oz U 32 oz R 10 oz U 42 oz. I then multiplied to rename 1 pound 15 ounces as ounces; (1 lb T 16 oz/lb) R 15 oz U 16 oz R 15 oz U 31 oz. I then subtracted to get 42 oz S 31 oz U 11 oz. 6. Alisa has 3 pounds of cheddar cheese and 2 pounds of provolone cheese. She slices the cheddar cheese into 2-ounce pieces. She slices the provolone cheese into 4-ounce pieces. How many pieces of cheese does Alisa have? Explain how you found your answer. 32 pieces; Explanations will vary. Sample explanation: First I renamed 3 pounds as 48 ounces, and then I divided 48 by 2 to get 24. I renamed 2 pounds as 32 ounces, and then I divided 32 by 4 to get 8. I then found 24 R 8 U 32. Write About It 7. Write an expression to show how to rename p pounds as a number of ounces. Explain how you know the expression is correct. p T 16; Explanations will vary. Sample explanation: I can take any number of pounds and rename as a number of ounces by multiplying the number of pounds by 16.