Transcript U.S. Customary System Unit Multipliers

TLW be able to convert
measurements.
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

When we attach words to numbers, we call the combination
a denominate number where the words are the units.

The units of the denominate number, 4 feet are feet.
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The Customary System is used as the basic unit of
measurement in the United States.

The basic units of the Customary System are the inch, foot,
yard, and mile.
12 inches (in.) = 1 foot (ft.)
3 feet (ft.) = 1 yard (yd.)
5280 feet (ft) = 1 mile (mi.)
The basic unit of weight are the ounce, pound, and ton.
16 ounces (oz.) = 1 pound (lb.)
2000 pounds (lbs.) = 1 ton
8 fluid ounces (fl. oz.) = 1 cup ( c)
2 cup ( c) = 1 pint (pt)
2 pint (pt) = 1 quart (qt)
4 quarts (qt) = 1 gallon (gal)
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Unit Multipliers are fractions that have a denominator with
an equal value as its numerator.
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For example, unit multipliers would include:
12 in.
1 ft.
1 yd
3 ft.
5280 ft
1 mi.
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We can use unit multipliers to convert one unit of
measurement to another.
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This will change the unit without changing the value.
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To convert 5 feet to inches, we use the unit multiplier that
has the relationship between feet and inches.
5 ft
1
x
12 in
1 ft
=
60 in
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Use unit multipliers to convert 420 feet to yards
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Use unit multipliers to convert 72 inches to feet
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Convert 360 inches to yards
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We will first convert inches to feet and then the feet to yards.
360 in.
1 ft.
12 in.
x
x
1 yd
3 ft.
= 360 = 10 yd
(12)(3)
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Convert 48 gallons to cups
48 gal
x
4 qts. x 2 pt. x 2 cups = (48)(4)(2)(2)
1 gal 1 qt. 1 pint
1
768 cups
1 inch ≈ 2.5 centimeters
1 centimeter ≈ 0.4 inch
1 yard ≈ 0.9 meter
1 meter ≈ 1.1 yards
1 mile ≈ 1.6 kilometers
1 kilometer ≈ 0.6 mile
1 ounce ≈ 28 grams
1 pound ≈ 0.45 kilogram
1 kilogram ≈ 2.2 pounds
1 ton ≈ 0.9 metric ton
1 metric ton ≈ 1.1 tons
1 quart ≈ 0.95 liter
1 liter ≈ 1.05 quart
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Which is longer: 40 centimeters or 1.5 feet? How much
longer?

A Rottweiler weighs 128 pounds. What is the weight in
kilograms?
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Approximately how many milliliters are equal to 1 fluid
ounce?
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A football player has a mass of 125 kilograms.
Approximately what is the player’s weight in pounds?
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The unit of temperature in the U.S. Customary System is
degrees Fahrenheit.
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The unit of temperature in the metric system is degrees
Celsius.
Water
freezes
Room
temperature
Normal
human body
temp.
Water boils
U.S. Customary
System
Metric
System
32 ºF
0 ºC
72 ºF
22.2 ºC
98.6 ºF
37 ºC
212 ºF
100 ºC
 To
convert from degrees Celsius to degrees
Fahrenheit, use the following formula:
ºF = (9/5 · ºC) + 32
 To
convert from degrees Fahrenheit to degrees
Celsius use:
ºC = 5/9(ºF – 32)