1. 32m = 32000mm
720cm = 72dm
91hm = 9100m
800dam = 8km
13m = 130dm
8200dm = 82dam
8km = 8000m
24hm = 24000cm
2. 630cm = 63 dm
126dm+2*l=152dm
2*l=26dm => l=13dm=1300mm
3. 410cm - 90cm=320cm=32dm
8km+8km=16km=160hm
25m+75m-2m=98m
4. 9800dam=98km (prima zi)
50hm=5km => 98km+5km=103km (a doua zi)
6000m=6km =>103km+6km=109km (a treia zi)
375-98-103-109=65km (a patra zi)