Answer:
1. 
2. 
3. 
4. 
Step-by-step explanation:
Given
See attachment
Required
Determine the additive inverse of each
The rule of additive inverse is as follows;
- For any positive number (n), the additive inverse is (-n)
- And for any negative number (-n), the additive inverse is (n)
Using the above, the solution is as follows:

Rule: <em>6 becomes -6 and - (-3) becomes +(-3)</em>
So, the additive inverse is 

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Rule: <em>-6 becomes 6 and -3 becomes 3</em>
So, the additive inverse is 

Rule: <em>6 becomes -6 and -3 becomes 3</em>
So, the additive inverse is 

Rule: -<em>6 becomes 6 and -(-3) becomes +(-3)</em>
So, the additive inverse is 
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