The Iditarod sled dog race is over 1,150 miles across Alaska. Two winning times were:
9 days, 11 hours, 46 minutes, and 48 seconds a second winning race finishes in
9 days, 5 hours, 8 minutes and 41 seconds.
What is the difference in the two winning race times?
Explain how you could find the difference in times between any two races if given the days, hours, minutes, and seconds.
Describe another situation in which finding the difference involves subtracting like units.
(5x-9)-(2x-7)
(6x-10)-(2x-8)
(3x-2)- (5x-4)
(4x-4)-(-2x+2)
(6x+5)-(3x+1)
(-4x-7)- (-5x-2)