Without a calculator, compute the value of each expression below.  

1. $−3+6$ 

   Hint (a):

   Use the Commutative Property of Addition and your understanding of minus signs to make this a subtraction problem.

2. $(−2)(−9)$ 

   Hint (b):

   When you multiply two numbers with the same sign, you will always get a positive result.

3. $−4−9−11$ 

   Hint (c):

   Change the subtraction into an addition

4. $−12−18$ 

   Answer (d):

   $−30$

5. $\frac{3}{4}(−8)$ 

   Hint (e):

   Simplify before multiplying

6. $(−2)(−2)(2)$ 

   Hint (f):

   Multiply from left to right, finding the correct sign for each step before moving on.

7. $7+(−19)$ 

   Answer (g):

   $−12$

8. $−15\div15$ 

   Hint (h):

   Division uses the same rules
   for signs as multiplication.