Which measurement is greatest? 6 kilometers, 60 meters, 600 centimeters, 6000 millimeters

Convert all of them to meters.

1 km = 1000 meters

6 * 1000 = 6000

6 km = 6000 m

1 cm = 0.01 m

600 * 0.01 = 6

600 cm = 6 m

1 mm = 0.001 m

6000 * 0.001 = 6 m

So we have:

6000 m, 60 m, 6 m, and 6 m.

So 6 kilometers is the greatest.