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Completati spatiile punctate: 9,8km+4,2dam+30km=...dam?
Va rog frumos sa imi scrieti si rezolvarea!


Răspuns :

980dam+4,2dam+3000dam=3984,2dam
succes!
9,8km+4,2dam+30km=xdam
x dam=9,8*100dam+4,2dam+30*100dam
x dam=980 dam+4,2 dam+3000dam
x dam=3984,2 dam