6,25 kl + 5,4 + 4500 dl =. liter

6,25 kl + 5,4 hl + 4.500 dl
= ( 6,25 x 1000 ) + ( 5,4 x 100 ) + ( 4.500 : 10 )
= 6.250 liter + 540 liter + 450 liter
= 7.240 liter

Maaf ya kalau salah.

6.25 kl = 6250 l
5.4 hl = 5400 l
4500 dl = 450 l
_______________+
12100 l