Using Mixed Units of Measurement in the U.S. System
Performing arithmetic operations on measurements with mixed units of measures requires care. Be sure to add or subtract like units.
Charlie bought three steaks for a barbecue. Their weights were \(14\) ounces, \(1\) pound \(2\) ounces, and \(1\) pound \(6\) ounces. How many total pounds of steak did he buy?
We will add the weights of the steaks to find the total weight of the steaks.
|Add the ounces. Then add the pounds.|
|Convert 22 ounces to pounds and ounces.|
|Add the pounds.||2 pounds + 1 pound, 6 ounces|
3 pounds, 6 ounces
|Charlie bought 3 pounds 6 ounces of steak.|
Anthony bought four planks of wood that were each \(6\) feet \(4\) inches long. If the four planks are placed end-to-end, what is the total length of the wood?
We will multiply the length of one plank by \(4\) to find the total length.
|Multiply the inches and then the feet.|
|Convert 16 inches to feet.||24 feet + 1 foot 4 inches|
|Add the feet.||25 feet 4 inches|
|Anthony bought 25 feet 4 inches of wood.|