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a fost răspuns

100 hm+300 hm =......km
37 dam+210 m =.......m
200 cm+400 cm =.....m
240 hm +1 100 dam =.....km

Răspuns :

AndreeaNC

100hm+300hm= 10km+30km=40 km
37 dam+210 m =..370m+210m=580m
200 cm+400 cm =2m+4m=6.m
240 hm +1 100 dam =..24km+11km=35km
100hm+300hm=400hm=(400:10)km=40km
37dam+210m=(37×10)m+210m=370m+210m=580m
200cm+400cm=600cm=(600:100)m=6m
240hm+1100dam=(240:10)km+(1100:100)km=24km+11km=35km