Answer
The Willis Tower is taller than 4 football fields.
Work Step by Step
The Willis Tower is 1451 feet tall. You can determine how many football fields this is equivalent to by first converting the height of the tower from feet to yards. You can do this by dividing the height of the tower by 3 the number of feet in each yard.
$1451 \div 3 = 483 R 2$
A football field is 100 yards long. You can determine how many football fields the height of the tower is equivalent to by dividing the height by 100.
$483 \div 100 = 4 R 83$