7th Grade Math

Extra Practice EP31

Extra Practice

Multi-Part Lesson 10-3 (continued)

PARTS B C PAGES 604–610

Find the volume of each composite figure. Round to the nearest tenth

if necessary.

1.

12 ft

5 ft

5 ft

2 ft 2.

3.5 m 3 m

12 m

3. 4 in.

9 in. 12 in.

Find the surface area of each composite figure. Round to the nearest tenth

if necessary.

4.

9.035 m

9 m

3.5 m

3.5 m

0.8 m

9 m

5.

9 ft

2 ft

0.5 ft

2 ft

6 ft

7 ft

6. Find the surface area of the inside, outside,

28 cm

4 cm

6 cm

and end surfaces of the pipe at the right.

Multi-Part Lesson 11-1: Convert Measurements

PARTS A B PAGES 624–630

Complete.

1. 4,000 lb =  T 2. 5 T =  lb 3. 5 lb =  oz


2. 12,000 lb =  T 5. _^1
   4
   lb =  oz 6. 12 pt =  c


3. 3 gal =  pt 8. 24 fl oz =  c 9. 8 pt =  c


4. 10 pt =  qt 11. 2 _^1
   4
   c =  fl oz 12. 6 lb =  oz


5. 10 gal =  qt 14. 4 qt =  fl oz 15. 4 pt =  c

PART C PAGES 631–634

Complete.

1. 400 mm =  cm 2. 4 km =  m 3. 660 cm =  m


2. 0.3 km =  m 5. 30 mm =  cm 6. 84.5 m =  km


3.  m = 54 cm 8. 18 km =  cm 9.  mm = 45 cm


4. 4 kg =  g 11. 632 mg =  g 12. 4,497 g =  kg


5.  mg = 0.51 kg 14. 0.63 kg =  g 15.  kg = 563 g


6. 662 m =  km 17. 5,283 mL =  L 18. 0.24 cm = mm


7. 380 kL =  L 20. 10.8 g =  mg 21. 83,000 mL = L

EP2_EP36_ExtPract_M1_895130.indd EP31 1/6/10 11:46 AM