8 km+4 dam +190 m = ? dam
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8 km + 4 dam + 190 m = ? dam

800 dam + 4 dam + 19 dam =

804 dam + 19 dam = 823 dam
8 km=80 hm=800 dam
190 m=19 dam
8km+4dam+190m=800 dam+4dam+19 dam=823 dam