8-3 = 55*354 = 17701770-24 = 17461746/6 = 291291+4035 = 43264326-30 = 42964296/5 = 859.2859.2+25 = 884.2
Therefore, the final result of the expression 8-3-8*354-24:6+4035-30:5+25 is 884.2.
8-3 = 5
5*354 = 1770
1770-24 = 1746
1746/6 = 291
291+4035 = 4326
4326-30 = 4296
4296/5 = 859.2
859.2+25 = 884.2
Therefore, the final result of the expression 8-3-8*354-24:6+4035-30:5+25 is 884.2.