measurement units of weight/mass before we get to the gory details, lets just talk about the size of...
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Measurement
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Units of Weight/Mass
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Before we get to the gory details, let’s just talk about the size of the units.
What unit would you use to measure the weight of a box of pasta?
pounds or ounces
What unit would you use to measure the weight of a car?
What unit would you use to measure the weight of a letter?
tons
ounces
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Basic Equivalences – Weight/Mass1 pound = 16 ounces1 ton = 2,000 pounds
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Basic Equivalences 1 pound = 16 ounces1 ton = 2,000 pounds
How many pounds is 40 ounces?
We are going from a smaller measure (ounces) to a larger measure (pounds)
so we have to divide.
pounds
To change a measurement from a larger unitto a smaller unit– multiply
To change a measurement from a smaller unit to a larger unit– divide
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Basic Equivalences 1 pound = 16 ounces1 ton = 2,000 pounds
How many tons is 9280 pounds?
To change a measurement from a larger unitto a smaller unit– multiply
To change a measurement from a smaller unit to a larger unit– divide
We are going from a smaller unit (pounds) to a larger unit (tons),
therefore divide.
tons
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Basic Equivalences 1 pound = 16 ounces1 ton = 2,000 pounds
How many ounces is 3.25 pounds?
We are going from a larger unit (pounds)to a smaller unit (ounces)
therefore multiply.
ounces
To change a measurement from a larger unitto a smaller unit– multiply
To change a measurement from a smaller unit to a larger unit– divide
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Basic Equivalences 1 pound = 16 ounces1 ton = 2,000 pounds
How many pounds is 3.45 tons?
We are going from a larger unit (tons)to a smaller unit (pounds)
therefore multiply.
pounds
To change a measurement from a larger unitto a smaller unit– multiply
To change a measurement from a smaller unit to a larger unit– divide
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Basic Equivalences 1 pound = 16 ounces1 ton = 2,000 pounds
How many ounces is 0.12 tons?
We are going from a larger unit (tons) to a smaller unit (ounces), therefore multiply.
But we don’t have a conversion factor for tons to ounces, so first we have to convert the tons to pounds!
pounds ounces
To change a measurement from a larger unitto a smaller unit– multiply
To change a measurement from a smaller unit to a larger unit– divide
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Units of Capacity (liquid)
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Standard Equivalences – Capacity/Volume
1 gallon = 4 quarts
1 quart = 2 pints
1 pint = 2 cups
1 cup = 8 fluid ounces
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What unit would you use to buy nail polish? Fluid ounces
What unit would you use to fill your car with gas?
What unit would you use to measure coffee for a party?
Gallons
Depends on the party.
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How many quarts is 6 pints?
We are going from a smallert unit (pints) to a larger unit (quarts),
therefore divide.
pints
Standard Equivalences – Capacity1 gallon = 4 quarts1 quart = 2 pints1 pint = 2 cups
1 cup = 8 fluid ounces
To change a measurement from a larger unitto a smaller unit– multiply
To change a measurement from a smaller unit to a larger unit– divide
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How many ounces is 7 cups?
We are going from a larger unit (cups) to a smaller unit (ounces),
therefore multiply.
7 x 8 ounces
Standard Equivalences – Capacity1 gallon = 4 quarts1 quart = 2 pints1 pint = 2 cups
1 cup = 8 fluid ounces
To change a measurement from a larger unitto a smaller unit– multiply
To change a measurement from a smaller unit to a larger unit– divide
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How many ounces is 1.5 quarts?
We are going from a larger unit (quarts) to a smaller unit (ounces), therefore multiply.
But we don’t have a conversion factor for quarts to ounces, so first we have to turn quarts into pints, and pints into
cups, and cups into ounces.
1.5 quarts x 2 = 3 pints3 pints x 2 = 6 cups
6 cups x 8 = 48 ounces
Standard Equivalences – Capacity1 gallon = 4 quarts1 quart = 2 pints1 pint = 2 cups
1 cup = 8 fluid ounces
To change a measurement from a larger unitto a smaller unit– multiply
To change a measurement from a smaller unit to a larger unit– divide
![Page 17: Measurement Units of Weight/Mass Before we get to the gory details, lets just talk about the size of the units. What unit would you use to measure the](https://reader036.vdocuments.us/reader036/viewer/2022070306/5519fff9550346ab0c8b4a4d/html5/thumbnails/17.jpg)
How many gallons is 23 cups?
We are going from a smaller unit (quarts) to a larger unit (ounces), therefore divide.
But we don’t have a conversion factor for gallons to ounces,
so first we have to turn quarts into pints, and pints into cups, and cups into ounces.
Standard Equivalences – Capacity1 gallon = 4 quarts1 quart = 2 pints1 pint = 2 cups
1 cup = 8 fluid ounces
To change a measurement from a larger unitto a smaller unit– multiply
To change a measurement from a smaller unit to a larger unit– divide
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How many gallons is 23 cups?
= 11.5 pints
= 5.75 quarts
= 1.4375 gallons
Standard Equivalences – Capacity1 gallon = 4 quarts1 quart = 2 pints1 pint = 2 cups
1 cup = 8 fluid ounces
To change a measurement from a larger unitto a smaller unit– multiply
To change a measurement from a smaller unit to a larger unit– divide
![Page 19: Measurement Units of Weight/Mass Before we get to the gory details, lets just talk about the size of the units. What unit would you use to measure the](https://reader036.vdocuments.us/reader036/viewer/2022070306/5519fff9550346ab0c8b4a4d/html5/thumbnails/19.jpg)
To change a measurement from a larger unitto a smaller unit– multiply
To change a measurement from a smaller unit to a larger unit– divide
If there is no direct conversion factor,You will have to go through intermediate steps
to complete the conversion.
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