Understanding Customary Units

Customary Conversions Lesson

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Customary Lengths

• A foot is 12 inches, or about the length from your elbow to to wrist.

• A yard is 3 feet or about the length of your leg.

• A mile is 5,280 feet or about how far you can walk in 15 minutes

Multiple Choice

If 1 mile = 1760 yd,

then 7 miles = ___yd

• 1760 yd

• 7 yd

• 1,000 yd

• 12,320 yd

Multiple Choice

If 1 yard = 3 feet,

then 8 yards = ___ft

• 24 ft

• 3 ft

• 8 ft

• 100 ft

Capacity Units

• Common units include cups, pints, quarts, and gallons

• 1 cup is 8 fluid ounces

Converting Capacity Measures

• What operation is used when converting from a bigger unit to a smaller unit, like gallons to quarts?

  
  

• What operation is used when converting from a smaller unit to a bigger unit like cups to pints?

Multiple Choice

1 pint = 2 cups

10 pints = ____ cups

• 20

• 2

• 4

• 5

Multiple Choice

1 quart = 4 cups

7 quarts= _______ cups

• 10 cups

• 28 cups

• 78 cups

• 32 cups

Converting Units

If you know the number of pounds, multiply by 16 to convert to ounces.

If you know the number of ounces, divide by 16 to convert to pounds.

Multiple Choice

How many ounces are in one pound? 

• 8 ounces 

• 16 ounces 

• 100 ounces 

• 2,000 ounces 

Multiple Choice

Hint: 1 pound = 16 ounces

Mrs. Upton's baby weighs 5 pounds and 4 ounces. How many total ounces does the baby weigh?

• 80 ounces

• 84 ounces

• 4 ounces

• 54 ounces

Multiple Choice

1 pound = 16 ounces

7 pounds=______ ounces

• 21 ounces

• 112 ounces

• 160 ounces

• 112 pounds