### Chapter Review

## The Metric System

For the following exercises, determine the base unit of the metric system described: liter, gram, or meter.

1
.

amount of juice in a carton

2
.

weight of a puppy

3
.

height of a wall

For the following exercises, choose the smaller of the two units.

4
.

hectogram or centigram

5
.

decameter or kilometer

6
.

milliliter or deciliter

7
.

Convert 236 cm to meters (m).

8
.

Convert 137.5 mg to grams (g).

9
.

You purchase 15 kg of birdseed. You divide the birdseed into 10 bags. How many grams of birdseed are in each bag?

10
.

A track is 650 m long. If you run 8 laps around the track, how many kilometers did you run?

## Measuring Area

For the following exercises, determine the most reasonable value for each area.

11
.

bedroom floor

12 km

12 m

12 cm

12 mm

12 km

^{2}12 m

^{2}12 cm

^{2}12 mm

^{2}12
.

nature preserve

800 km

800 m

800 cm

800 mm

800 km

^{2}800 m

^{2}800 cm

^{2}800 mm

^{2}13
.

desk surface

0.125 km

0.125 m

0.125 cm

0.125 mm

0.125 km

^{2}0.125 m

^{2}0.125 cm

^{2}0.125 mm

^{2}For the following exercises, convert the given area to the units shown.

14
.

650,000 cm

^{2}= __________ m^{2}15
.

17 m

^{2}= __________ cm^{2}16
.

759 cm

^{2}= __________ mm^{2}17
.

A laptop is 30 cm by 20 cm. A sticker on the laptop cover measures 15 mm by 15 mm. How many square centimeters of the laptop cover is still visible?

18
.

A dining room wall is 2.75 m by 2.25 m. A window on the wall is 0.75 m by 1.5 m. How many square meters is the surface of the wall?

19
.

A floor is 6 m by 4 m. A rug on the floor measures 200 cm by 100 cm. How much of the floor, in m

^{2}, is not covered by the rug?20
.

A ceiling is 4 m by 2.5 m. A skylight in the ceiling measures 75 cm by 80 cm. How much of the ceiling, in m

^{2}, would need to be painted if you decide to change the color of the ceiling?## Measuring Volume

For the following exercises, determine the most reasonable value for each volume.

21
.

aquarium

65,750 km

65,750 m

65,750 cm

65,750 mm

65,750 km

^{3}65,750 m

^{3}65,750 cm

^{3}65,750 mm

^{3}22
.

carton of soup

94,000 L

94 L

940,000 mL

940 mL

94,000 L

94 L

940,000 mL

940 mL

23
.

gift box

6,250 km

6,250 m

6,250 cm

6,250 mm

6,250 km

^{3}6,250 m

^{3}6,250 cm

^{3}6,250 mm

^{3}For the following exercises, convert the given volume to the units shown.

24
.

59,837 mm

^{3}= __________ cm^{3}25
.

12.5 dm

^{3}= __________ mL26
.

368 cm

^{3}= __________ mm^{3}27
.

A box has dimensions of $15\phantom{\rule{thinmathspace}{0ex}}\text{cm}\times 10\phantom{\rule{thinmathspace}{0ex}}\text{cm}\times 25\phantom{\rule{thinmathspace}{0ex}}\text{cm}$. The box currently holds 1,750 cm

^{3}of black beans. How many cubic centimeters of black beans are needed to completely fill the box?28
.

The dimensions of a small storage unit are $3\phantom{\rule{thinmathspace}{0ex}}\text{m}\times 3\text{m}\times 3\phantom{\rule{thinmathspace}{0ex}}\text{m}$. What is the volume of a medium storage area with dimensions twice the size of the small unit?

29
.

How much liquid, in liters, can a container with dimensions of $35\phantom{\rule{thinmathspace}{0ex}}\text{cm}\times 15\phantom{\rule{thinmathspace}{0ex}}\text{cm}\times 20\phantom{\rule{thinmathspace}{0ex}}\text{cm}$ hold?

30
.

A box is 20 cm long and 15 cm wide. The volume of the box is 2,100 cm

^{3}. What is the height of the box?## Measuring Weight

31
.

What is the most reasonable estimate for the weight of a small stack of coins?

120 mg

12 g

1.2 kg

0.12 mt

120 mg

12 g

1.2 kg

0.12 mt

For the following exercises, convert the given weight to the units shown.

32
.

7,900 g = __________ kg

33
.

81 g = __________ mg

34
.

0.12 kg = __________ g

For the following exercises, determine the total weight in the units shown.

35
.

four 450 mg tablets ________ g

36
.

six 45 g candy bars ________ kg

37
.

seven 1.5 g buttons ________ mg

38
.

A box of chocolate weighs 2.75 kg. If you share the candy bar equally with 5 friends, how many grams of chocolate does each person get?

39
.

You purchase 15 tomatoes that weigh 100 grams each. If tomatoes cost $1.18 per kilogram, how much did you pay?

40
.

A value-size package of ground chicken costs $23.00. The package weighs 2.5 kg. What is the cost per gram of the chicken?

## Measuring Temperature

For the following exercises, convert the temperatures to the nearest degree.

41
.

365 °F = __________ °C

42
.

42 °C = __________ °F

43
.

575 °F = __________ °C

44
.

135 °C = __________ °F

45
.

–20 °F = __________ °C

46
.

73 °C = __________ °F

47
.

The temperature of a welder’s torch increases 1,112 ºF every 3 minutes. About how many minutes does it take for the torch to increase 1,200 ºC?

48
.

A substance is heated to 302 ºF. As the substance cools the temperature drops 4 ºC every 3 minutes. How many minutes until the temperature of the water reaches 130 ºC?

49
.

On November 1 the temperature was 40 ºF. On December 1 the temperature was 7 ºC. Which day was cooler?

50
.

The instructions to cook lasagna say to set the oven at 475 ºF. To the nearest degree, what is the temperature in degrees Celsius?