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Exprima in metri rezultatul urmatoarelor operatii: 0,09 km+28 dm= m
450 mm+20 dm= m
1mm+1cm+1dm+1m+1km= m


Răspuns :

0.09 km+28 dm= 90 m + 2.8m= 92.8m
450mm+20dm= 0.45m+2m= 2.45m
1mm+1cm+1dm+1m+1km= 0.001+0.01+0.1+1+1000= 1001.111m