Unit 10 Contents

14. Luis's mother wanted the living room carpet cleaned after the party. The carpet was 21 feet by 11 feet.
1. What was the area of the carpet?
2. A professional charged $.32 per square foot to clean carpets. About how much would the family spend to have the living room carpet cleaned professionally?
15. Luis has large recycling bins in his garage. of the bins were for recycling cans. He filled of the can bins. What fraction of all of the bins in the garage did he fill?
16. Luis's father wants to repaint the living room. He has 3 cans with gallon in each can.
1. How much paint does he have altogether?
2. One gallon of paint covers 400 square feet. Does Luis's father have enough paint to cover both a 9- by 11-foot wall and a 21- by 9-foot wall? How do you know?
17. There was of a roll of painter's tape, and Luis's father used about of it. He needed about of a roll more to finish the job. Did he need to buy more tape or did he have enough to finish the job? How do you know?
18. By 5:00, of the house had been cleaned. After dinner, the family cleaned of the amount they had left to clean. How much of the whole house did they clean after dinner?

Check-In: Questions 19–21

For Questions 19–21, show or tell how you solved each problem. Include number sentences and labels.

19. When Luis's family began to clean up after the party, they had of a roll of paper towels. When they were done, there was only of that amount left on the roll. How much of the roll was left?
20. Luis's mother used 3 tubes of frosting to decorate part of Luis's cake. Each tube held between to ounces of frosting. About how many ounces of frosting did she use? How do you know?
1. Will the product of be greater than or less than ? Will it be greater than or less than ?
2. Write a story, draw a picture, and solve the problem for .
3. Explain how you know the answer to your story is reasonable.