根据题意可得:
(1)3.25×1000=3250;
所以,3.25L=3250ml;
(2)600÷1000=0.6;
所以,600ml=0.6L;
(3)3.5×1000=3500;
所以,3.5dm3=3500cm3;
(4)36000÷1000=36;
所以,36000cm3=36dm3;
(5)8.04dm3=8.04L;
8.04×1000=8040;
8.04L=8040ml;
所以,8.04dm3=8.04L=8040ml;
(6)785mL=785cm3;
785÷1000=0.785;
785cm3=0.785dm3;
所以,785mL=785cm3=0.785dm3.
故答案为:3250,0.6,3500,36,8.04,8040,785,0.785.