Metric Measurements

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Metric Measurements
Warm Up
Problem of the Day
Lesson Presentation
Course 2
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Warm Up Find each value. 1. 10 2. 10 3.
100 4. 100
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100
10,000
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2
10,000
1,000,000
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Problem of the Day Which is larger, 100 or 100
? How do you know?
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1004 is larger the power of 100 is greater.
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Learn to identify, convert, and compare metric
units.
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Additional Example 1 Choosing the Appropriate
Metric Unit
Choose the most appropriate metric unit for each
measurement. A. The amount of water a runner
drinks each day
Liters
B. The length of a boat
Meters
C. The mass of a car
Kilograms
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Check it Out Example 1
Choose the most appropriate metric unit for each
measurement. A. The amount of liquid in 10
teardrops B. The mass of a pencil eraser C.
The length of 15 soccer fields
Milliliters
Grams
Kilometers
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Prefixes of metric units
To convert to a smaller unit, you must multiply.
To convert to a larger unit, you must divide.
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Additional Example 2A Converting Metric Units
Convert the measure. 5000 mL to liters
5000 mL (5000 1000) L
Move the decimal point 2 places left 5000.
5 L
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Additional Example 2B Converting Metric Units
Convert the measure. 1,070 g to milligrams
1,070 g (1070 ? 1000) mg
Move the decimal point 3 places right 1,070,000.
1,070,000 mg
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Check It Out Example 2A
Convert the measure. 9800 cm to meters
9800 cm (9800 100) m
Move the decimal point 2 places left 9800.
98 m
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Check It Out Example 2B
Convert the measure. 580 g to milligrams
580 g (580 ? 1000) mg
Move the decimal point 3 places right 58,000.
580,000 mg
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Additional Example 3 Using Unit Conversions
t to Make Comparisons

Elizabeth purchases one
pumpkin that weighs 3 kg and another that weighs
2,150 g. Which pumpkin weighs more?
3 kg (3 ? 1,000) g
Move the decimal point 3 places right 3.000.
3,000 g
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Check It Out Additional Example 3 Scott
purchases a bag of potatoes that weighs 2.5 kg
and another bag that weighs 3,850 g. Which bag
weighs more?
You can convert the mass of Tyeshas bag to grams.
2.5 kg (2.5 x 1,000) g
Move the decimal point 3 places right 2.500.
2,500 g
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Lesson Quiz
Convert each measure. 1. 1,270 g to
kilograms 2. 890 cm to millimeters 3. 750 mL to
liter 4. 122 km to meters 5. 800 mg to grams
1.27 kg
8,900 mm
0.75 L
122,000 m
0.8 g
6. Rosa walks 1.5 km to the library. Meghan walks
2,200 m to the library. Who walks farther?
Meghan walks farther. 2,200 m 2.2 km