1) 5000m= 500dam= 50hm= 5km
100dl =10l =1dal
60mg =6cg
2) 8m+2m=10 m=1 dam
890 hl+340 hl=1230hl= 123kl
200hg-300g=200hg-3hg= 193hg
200 ani+30 decenii+....secole=200 ani +300 ani+..secole=500 ani+...secole=5 secole+5secole=1 mileniu
3)1200dam=120km
520hm=52 km
27+120+52=199 km
