4км-2км 580 м

To subtract 2 km from 4 km and 580 m, we first need to convert all measurements to the same unit.

1 km is equal to 1000 meters.

4 km = 4 * 1000 m = 4000 m

Therefore, the expression becomes 4000 m - 2000 m - 580 m.

Now we can perform the subtraction:

4000 m - 2000 m - 580 m = 2000 m - 580 m = 1420 m

So, 4 km - 2 km 580 m = 1420 m.