1)
4 dam si 13 m=40 m si 13 m=53 m;
300dm si 200 cm=30 m si 2 m=32 m;
2hm si 2 dam=200 m si 20 m=220 m;
120 dm si 3000 m=1 200 m si 3 000 m=4 200 m;
20 km si 7 m=20 000 m si 7 m=20 007 m;
20 dm si 500 cm=2 m si 5 m=7 m;
8 km si 3 dam=8 000 m si 30 m=8 030 m.
2)
200m=20 dam;
130 dm=13 m;
500 dm=5 dam;
36hm=36 000 dm;
13 dam=13 000 cm;
8 hm=8 000 dm;
12 000 m=12 mm;
7 200 cm=72 m;
9 000 dm=900 m=90 dam=9 hm
570 hm=57 km;
4 300 hm=430 km;
7 000 dam=70 km.