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3dam egal?cm
420 km egal ?hm egal?dm egal ? M
400dam egal ? Dm
400m egal ? Dm
400 m egal ? Hm


Răspuns :

3dam=3000cm 420km=4200hm=4200000dm=420000m 400dam=40000dm 400m=4000dm 400m=4hm