Jim ran 16 miles in 2 hours while Frank ran 20 miles in 2 hours. How many more miles did Frank run than Jim in an hour?
Jim ran 16 / 2 = <T>divide(16, 2)=8.0 miles for an hour.
Frank ran 20 / 2 = <T>divide(20, 2)=10.0 miles for an hour.
Frank ran 10 - 8 = <T>subtract(10, 8)=2 more miles than Jim in an hour.
