1. 2,5km = ............. m = ......... .......cm
2. 1234mm = ...........m = ................. hm = .................km
3. 250m = ............. dm = .................. mm
4. 3,2 m3 = ..................... dm3 = ........................cm3 = ............................cc
5. 4,5 m3 = ........................... l = .............................. ml
6. 123l = ...................... cm3 = ..................... cc = ..................... m3
7. 3kg = ................... g; 4562kg = ............. t1 =............ tÊn.
8. m = 235kg thì P = .............N; m = 560g thì P = ...........N
P = 240N thì m = ......... kg; P = 28N thì m = ............ kg
Chó ý: 1dm3 = 1l ; 1cm3 = 1cc; 1cm3 = 1 ml= 1cc