1 dm = 10 cm so 4 dm = 40 cm...
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∙ 14y ago200 centimeters=20 decimeters
4
4 dm is greater than 400mm
18.3 dm is longer.
1 km = 10 dm
8
4 dm
Km
200cm = 2m ...
2000 dm is the same as 200 m. 2000 dm is longer than 20 m, not bigger.
Certainly, 70 dm is longer than 6 m by 10 dm.
200cm is equal to 2m