Răspuns:
a)5dam^2=500m^2
16dam^2=1600m^2
8hm^2=80000m^2
32hm^2=320000m^2
7km^2=7000000m^2
31km^2=31000000m^2
b)18m^2=1800dm^2
43m^2=4300dm^2
12dam^2=120000dm^2
213dam^2=2130000dm^2
6hm^2=6000000dm^2
19hm^2=19000000dm^2
5km^2=500000000dm^2
c)7hm^2=700dam^2
28hm^2=2800dam^2
9km^2=90000dam^2
35km^2=350000dam^2
402km^2=4020000dam^2
d)5km^2=500hm^2
14km^2=1400hm^2
192km^2=19200hm^2
7913km^2=791300hm^2
e)4dm^2=400cm^2
15dm^2=1500cm^2
3m^2=30000cm^2
17m^2=170000cm^2
6dam^2=6000000cm^2
7hm^2=700000000cm^2