UNIT 5: Units of Measure

Metric System


Most other countries around the world use the Metric System for measuring things. The metric system is based on the number ten.  10 of one thing will make 1 of another, so on and so forth.  Remember to look at the prefixes to help you.


milli = 1/1000th, centi = 1/100th, deci = 1/10th


deca = 10, hecta = 100,  kilo = 100.


King Henry Died Monday Drinking Chocolate Milk.



Length:  Base unit is a meter (m)


10 millimeters (mm) = 1 centimeter (cm)
10 centimeters = 1 decimeter (dm)
10 decimeters = 1 meter (m)
10 meters = 1 decameter (dam)
10 decameters = 1 hectameter (hm)
10 hectameters = 1 kilometer (km)


1,000 millimeters = 1 meter
1,000 meters = 1 kilometer


Liquid Volume: The base unit is the liter (L).
10 milliliters (mL) = 1 centiliter (cL)
10 centiliters = 1 deciliter (dL)
10 deciliters = 1 liter (L)
10 liters = 1 decaliter (daL)
10 decaliters = 1 hectaliter (hL)
10 hectaliters = 1 kiloliters (kL)


1,000 mL = 1 L
1,000 L = 1 kL


Mass (Weight): The base unit is a gram (g).
10 milligrams (mg) = 1 centigram (cg)
10 centigrams = 1 decigram (dg)
10 decigrams = 1 gram (g)
10 grams = 1 decagram (dag)
10 decagrams = 1 hectagram (hg)
10 hectagrams = 1 kilogram (kg)



The Customary System:


In the United States, we use the customary system for measuring.  


Length:


Inches (in), Feet (ft), Yards (yd), and Miles (mi.)


12 inches = 1 foot
3 feet = 1 yard
1,760 yards = 1 mile
5,280 feet = 1 mile


Liquid Volume:


Teaspoons (tsp) ,Tablespoons (T.), Ounces (oz.), Cups (c.), Pints (pt.), Quarts (qt.), Gallons (g.)


3 teaspoons = 1 Tablespoon
16 Tablespoons = 1 cup
8 fluid ounces = 1 cup
2 cups = 1 pint
2 pints = 1 quart
4 quarts = 1 gallon


Mass (Weight):


Ounces (oz), Pounds (lb.), Tons (T)


16 ounces = 1 pound
2,000 pounds = 1 Ton










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