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12 Hm minus 3200 cm plus 730 dam=..... m
1.300 m plus 12.000 m minus 800dam egal cu.....km
13000 mm minus 79 Hm minus 480dm egal cu.......dam
31 kilometri plus 45 H M minus 700 m egal cu.........dam


Răspuns :

12 hm =1200 m
3200cm =32 m
730 dam =73 m
1200-32+73 =1168+73=1241
1300 m =13 km
1200m =12km
800 dam =8km
13+12-8=17
13000 mm=13000000
79 hm=790
480dm =dam
13-790
13000000-790-4800=
31km =3100
45hm=450
700 m =70
3100+450-70=3550-70=3480