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200000 cm patrati egal cu ...........................m patrati
3 dam patrati ..........................................m patrati
150000 mm patrati .....................................m patrati
3,5 hm patrati egal cu.................................m patrati
0,005 km patrati ........................................m patrati
512,3 dm patrati ........................................m patrati


Răspuns :

200000 cm² = 20 m²
3dam² =300 m²
150000 mm² =  0,15 m²
3,5 hm²=35000 m²
0,005 km² =5000 m²
512,3 dm² = 5,123 m²