20 ! when you add a negative and a positive the answer is: neg/pos when you add numbers with with the same sign the answer is: neg/pos when you subtract a negative and a positive the answer is: neg/pos when you subtract numbers with the same sign, the answer is: neg/pos

All right,  All you have to remember is a triangle.  In 2 angles of the triangle, add a negative sign.  In the last side, add a positive.  All you have to do now is cover up the 2 sides in your equation, and the uncovered one is your answer.  For example, -1 times -1=???  So you cover up the 2 negative sides, and you are left with a positive.  However, this only works with multiplication and division.  When it comes to subtraction and addition, the answer varies with the number.  Hope this helps.

When you add a negative and positive the answer is positive.
When you add numbers with the same sign it is positive
When you subtract numbers with the same sign it is negative

It’s 8.99 for john hub b