Question

1. Transforma, folosind schema:

32m= mm
720cm= dm
91hm= m
800dam = km
13m = dm
8200dm = dam
8km = m
24hm= cm

2. Perimetrul unui dreptunghi este de 152dm. Daca lungimea are 630cm,afla latimea in mm.

3. Efectuati :

410cm - 90cm= cm = dm
8km + 80hm = km = hm
25000mm + 7500cm - 20dm = m

4. Un motociclist are de parcurs un traseu lung de 375km. In prima zi strabate 9800 dam, a doua zi cu 50hm mai mult , a treia cu 6000m mai mult decat a doua zi , iar a patra zi restul distantei. Afla cati km a parcurs zilnic.

Answer 1

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)