How long is a long-distance running race?
13 yards 13 inches 13 feet 13 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 a long-distance running race is 13 miles.
13 inches, 13 feet, and 13 yards are all too short.