27-42÷2+(11-5)

Remove parentheses.

27-42÷2+11-5

Rewrite the division as a fraction.

27-422+11-5

Raise 4 to the power of 2.

27-162+11-5

Divide 16 by 2.

27-1⋅8+11-5

Multiply -1 by 8.

27-8+11-5

27-8+11-5

Subtract 8 from 27.

19+11-5

Add 19 and 11.

30-5

Subtract 5 from 30.

25

25

Evaluate 27-(4^2)÷2+(11-5)