Customary System1 foot = 12 inches1 yard = 3 feet1 mile = 5,280 feet big > small = multiplyRule to Remember -If you are changing from a large unit to a smaller one (Example: feet to inch) you should multiply.If you are changing from a small unit to a larger one (Example: inch to feet) you should divide.big > small = multiplyExamples:yards > feetmiles > yardstons > poundsgallons > quartssmall > big = divide Examples:feet > yardsyards > milespounds > tonsquarts > gallons

Customary System

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

big > small = multiply

Rule to Remember -

If you are changing from a large unit to a smaller one (Example: feet to inch) you should multiply.
If you are changing from a small unit to a larger one (Example: inch to feet) you should divide.

big > small = multiply

Examples:

yards > feet
miles > yards

tons > pounds
gallons > quarts

small > big = divide

Examples:

feet > yards
yards > miles
pounds > tons
quarts > gallons

Quiz