4км 312м -745м=

To subtract the meters from the kilometers, you first need to convert the kilometers to meters and then perform the subtraction.

1 kilometer equals 1,000 meters, so to convert 4 kilometers into meters we perform: 4 kilometers * 1,000 meters/kilometer = 4,000 meters

Now add the additional 312 meters: 4,000 meters + 312 meters = 4,312 meters

Now you can subtract 745 meters from 4,312 meters: 4,312 meters - 745 meters = 3,567 meters

The result is 3,567 meters.

If you want to convert it back to kilometers and meters: There are 1,000 meters in a kilometer.

The number of full kilometers in 3,567 meters is: 3,567 meters / 1,000 = 3 kilometers (since 3,567 divided by 1,000 is 3 with a remainder of 567)

The number of meters remaining is the remainder of that division: 567 meters

So, the final result is 3 kilometers and 567 meters.