Explicație pas cu pas:
1. 250cmp+75000mmp+25dmp=250*10^-4+75*10^-4+0,25= 0,025+0,0075+0,025=0,0575
2. 100l+100dmc+10000cmc= 200dmc+10000cmc=0,2mc+0,01mc=0.21mc
3.2h15'+50'= 3600*2+15*60+50*60= 60(120+15+50)= 60*185=11100secunde
4. 1t+5kg+1500g= 1000kg+5kg+1,5kg=1006,5kg
