Section: Mathematical Reasoning

56) 1 kilometer =

1. 10 meters
2. 100 meters
3. 1,000 centimeters
4. 10,000 centimeters
5. 1,000,000 millimeters

1 km = 1,000 m
1 m = 100 cm,
so
1 km = 100,000 cm

1 m = 1,000 mm, so
1 km = 1,000,000 mm.