I need help checking my algebra. ?

Question

Would the answer to number three and four be 27 and 15??? on this page link?

http://schools.connectionsacademy.com/content/media/102877-6142006-40716-PM-2015726540.pdf

Answer 1

3. [-5+8]-9

27

4. -3[6+(-11)]

15

You are right.

Answer 2

3. I-5+8I -9

-5+8 =3

3-9=-6

I believe it is a subtraction symbol not multiplying by a negative

and if it was then your answer would have to be -27

#4 would be negative 15, you are only taking the absolute value of what is inside the brackets