Extra Practice 3.1 Systems of Measurement

Extra Practice 3.2 Converting Measurements

Extra Practice 3.3 Surface Area

Extra Practice 3.4 Volume

Answer Key

3.1 – Systems of Measurement

1)

a. 53.6 cm

b. 43.6 cm

c. 7.6 m

2) 780 cm

3) 240 m

4) 122 ft

5) 33.3 m

6) 104 m

7) 1100 cm

8) 13.5 feet of 2 by 4, 52.5 feet of 2 by

2

9) 12 feet

10) 740 boards

11) No they wouldn’t fit

12) 19 geraniums

13) Barely fit

3.2 – Converting Measurements

1) 760 ft2

2) 2.5 m, so yes it will fit

3) 141.5 cm2

4) 20.3 by 10.2 cm

5) $2227.14

6)

a) $28.56

b) $31.23

c) $121.80

7) Omit

8)

a) 27 boxes

b) $511.65

9) OMIT

3.3 – Surface Area

1) 468 in2

2) 66 ft2

3) 11305 in2

4)

a) 961.3 in2

b) 6.7 ft2

5) 149.3 in2

6) 1.4 ft2

7) 374 ft2

8) 214 in2

9) OMIT

10) $1234.80

11) $1312.85

12) $179.70

3.4 Volume

1)

a) 12960 in3

b) 7.5 ft3

2) 11.25 ft3

3) No

4) 3 bags

5) 7.5 ft3 of hay

6) 4446 in3

7)

a) 14.5 gal

b) $43.36

c) $120.29

8) 2667.5 ft3

9) 6 ft 2 in