How long is the Grand Canyon?
275 feet 275 inches 275 yards 275 miles
Select the best estimate.
Measurements are written with both a number and a unit. The unit comes after the number. The unit shows what the number means.
When you are using customary units, length may be written with units of inches, feet, yards, or miles.
There are 12 inches in 1 foot, and 3 feet in 1 yard. There are 5,280 feet in 1 mile.
A football is about 1 foot long. A football field is 100 yards long.
The best estimate for the length of the Grand Canyon is 275 miles.
275 inches, 275 feet, and 275 yards are all too short.