1)
a)34m+25cm+o,o47km=34m+o,25m+47m=81,25m
b)1h+12min30s+15s=3600s+102s+15s=3717s
c)4[tex]cm^{2}[/tex]=400[tex]mm^{2}[/tex]=0,04[tex]dm^{2}[/tex]
2)Masa-m-canatrul-kilogramul-kg
Timp-t-cronometru-secunda-s
Volum-v-cilindrul gradat-litrul-l
3)
a)A
b)A
c)F
