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**What are Customary Units**

Units of measurement used only in USA and a small country in central Africa Not based on units of 10 as the Metric System

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**Customary Units of Volume**

Teaspoon Tablespoon Fluid ounce Cup Pint Quart Gallon

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Mr. Gallon

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**Measuring spoons Fluid once = fl. Oz. Tablespoon = T or Tbs**

teaspoon = tsp 1 fluid ounce = 2 T 1 T = 2 tsp Measuring spoons can be used to measure liquid or solids Example: 2 tsp of vanilla 1 tsp of salt How many teaspoons in a fluid ounce? 2 x 2 = 4 tsp in 1 fl oz

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**Measuring cup 1 cup or c = 8 fl oz 2 cups = 16 fl oz**

16 ounces = 1 pint 2 cups = 1 pint

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**Blue milk carton: One pint of milk: One quart of milk: 1 cup**

8 ounces or oz The kind you drink in school One pint of milk: 2 cups 16 fluid ounces or oz One quart of milk: 2 pints 4 cups 32 fluid ounces or oz

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**Gallon of milk equals? 4 quarts 8 pints 16 cups 128 fluid ounces**

Solve these volume/capacity problems

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1 liter = 34 US fluid ounces 2 liter soda: 2 x 34 = 68 fluid ounces

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**Customary Units of length**

From smallest to greatest length the measurements are: Inches Feet Yards Miles Solve these length problems 10

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**Customary Units of length**

Yard Standard in is the? ……………… How many inches in one yard? How many feet in a yard? How many inches in a foot? How many feet in one mile? How many yards in a mile? 36 inches 3 feet 12 inches 5280 feet 1760 yards

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**Customary Units of Weight**

pound or lb. Standard unit is the……………… One pound is ? 2000 pounds = ? Solve these problems 16 ounces or oz. 1 Ton

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**Temperature Metric Customary Boiling Point Boiling Point**

Fahrenheit Celsius Freezing Point Freezing Point 32 Fahrenheit Celsius o o o o

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**Comparing Metric and Customary Units**

1 pound = .45 kg or 450 gm 1 yard = .90 m or 90 cm 1 cup = 250 ml 1 pint = 500 ml 1 quart = 1 L 1 gallon = 4 L

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**Time 1 minute = 60 seconds 60 minutes = 1 hour 24 hours = 1 day**

365 days = 1 year

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**What is Light year? It is the distance light travels in one year**

So how far is that? Light travels: 186,000 mi/sec 300,000 km/sec

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**What is Light year? In 1minute: 300,000 x 60 = 18,000,000 km**

In 1 hour: 18,000,000 x 60 = 1,080,000,000 km 1.08 x 10 km In 1 day: 1,080,000,000 x 24 = 25,920,000,000 km 2.592 x 10 km In 1 year: 25,920,000,000 x 365 = 9,460,800,000,000 km 9.46 x 10 km 9 quadrillion, 460 billion, 800 trillion km 7 9 10 12

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