Vyber správnu jednotku dĺžky. Potom stlač "Kontrola".

7 000 cm = 70 cmdmkmmmm	8 000 m = 8 cmdmkmmmm	6 m = 60 cmdmkmmmm	9 m = 9 000 cmdmkmmmm
3 cm = 30 cmdmkmmmm	600 mm = 6 cmdmkmmmm	5 m = 500 cmdmkmmmm	4 km = 4 000 cmdmkmmmm
3 000 mm = 30 cmdmkmmmm	7 000 cm = 700 cmdmkmmmm	4 km = 4 000 cmdmkmmmm	1 dm 8 mm = 108 cmdmkmmmm
9 000 mm = 9 cmdmkmmmm	8 dm = 80 cmdmkmmmm	400 dm = 4 000 cmdmkmmmm	50 m = 5 000 cmdmkmmmm