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Published byLayne Allsop Modified over 2 years ago

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Measurement

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Units of Weight/Mass

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Before we get to the gory details, lets 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/Mass 1 pound = 16 ounces 1 ton = 2,000 pounds

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Basic Equivalences 1 pound = 16 ounces 1 ton = 2,000 pounds How many pounds is 40 ounces? To change a measurement from a larger unit to 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 ounces 1 ton = 2,000 pounds How many tons is 9280 pounds? To change a measurement from a larger unit to 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 ounces 1 ton = 2,000 pounds How many ounces is 3.25 pounds? To change a measurement from a larger unit to 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 ounces 1 ton = 2,000 pounds How many pounds is 3.45 tons? To change a measurement from a larger unit to 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 ounces 1 ton = 2,000 pounds How many ounces is 0.12 tons? To change a measurement from a larger unit to 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? Standard Equivalences – Capacity 1 gallon = 4 quarts 1 quart = 2 pints 1 pint = 2 cups 1 cup = 8 fluid ounces To change a measurement from a larger unit to 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? Standard Equivalences – Capacity 1 gallon = 4 quarts 1 quart = 2 pints 1 pint = 2 cups 1 cup = 8 fluid ounces To change a measurement from a larger unit to 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 dont 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 pints 3 pints x 2 = 6 cups 6 cups x 8 = 48 ounces Standard Equivalences – Capacity 1 gallon = 4 quarts 1 quart = 2 pints 1 pint = 2 cups 1 cup = 8 fluid ounces To change a measurement from a larger unit to 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? We are going from a smaller unit (quarts) to a larger unit (ounces), therefore divide. But we dont 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 – Capacity 1 gallon = 4 quarts 1 quart = 2 pints 1 pint = 2 cups 1 cup = 8 fluid ounces To change a measurement from a larger unit to 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? Standard Equivalences – Capacity 1 gallon = 4 quarts 1 quart = 2 pints 1 pint = 2 cups 1 cup = 8 fluid ounces To change a measurement from a larger unit to a smaller unit– multiply To change a measurement from a smaller unit to a larger unit– divide

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To change a measurement from a larger unit to 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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