2 Madison plans to walk and run a total of 1 mi on a treadmill. She has already walked mi and plans to run the rest of the Modiin wants to know the distance she needs to run

If Madison has already walked mi and plans to run the rest of the 1-mile distance, then she needs to run 1 - mi = 1 - mi = 1 - mi miles.

How many more miles

Madison needs to run 1 - mi = 1 mile more.