As a wild guess, I would say that is is a km.
347 km to the nearest 100 km is 300 km. since 300 is close to 347
200 km
28 km
489 KM
0.4 km
68 km
11,000 km
It depends on the units for 20.72. 20.72 metres, rounded to the nearest tenth km is 0.0 km.
12.0 km
12.0 KM
Still 2666
The answer is 13,000km