-16-8/2 + 25 + 5 + 1

Using the order of operations, I will solve the expression step by step:

-16 - 8/2 + 25 + 5 + 1
= -16 - 4 + 25 + 5 + 1 (divide 8 by 2)
= -20 + 25 + 5 + 1 (subtract 4 from -16)
= 5 + 5 + 1 (add -20 and 25)
= 10 + 1 (add 5 and 5)
= 11 (add 10 and 1)

Therefore, -16 - 8/2 + 25 + 5 + 1 equals 11.