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Efectuati transformarile de ma jos:
3 m=? cm
3 dam=? dm
3 dam=? cm
400 m=? hm
400 dam=? km
400 m=? dm
420 km=? hm=? dm=? km


Răspuns :

3m=300cm
3dam=300dm
3dam=3000cm
400m=4 hm
400dam=4km
400m=4000dm
420km=4200hm=4200000dm