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dam^3 -> m^3 = x1000
1) 4,500 m^3

km^3 -> dam^3 = x1,000.000
2) 300,000 dam^3

cm^3 -> dm^3 = ÷1000
3) 0,4 dm^3

mm^3 -> dm^3 = ÷1,000,000
4) 0.0005 dm^3

hm^3 -> km^3 = ÷1000
5)0.0002 km^3