Odpowiedź:
a) 40mm = 4cm
150mm = 15cm
300mm = 30cm
b)200cm = 2m
1100cm = 11m
8000cm = 80m
c) 70dm = 7m
200dm = 20m
1400dm = 140m
d) 5000m = 5km
21000m = 21km
30000m = 30km
