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Calculati:
175dm+9825dm=...hm
963cm+9037cm=...dam
144hm-86hm=28000...
1001dam=999dam=20...
208...-108...=10km
17...+182...=199000cm
48...-30...=18mm


Răspuns :

175dm+9825dm=10hm
963cm+9037cm=1000dam
144hm-86hm=28000dm
1001dam+999dam=20km
208hm-108hm=10km
17dam+182dam=199000cm
48mm-30mm=18mm