Posted by **cassandra** on Monday, May 2, 2011 at 4:56pm.

7 minus -15 equals? would that be a -8?

- math -
**Ms. Sue**, Monday, May 2, 2011 at 4:58pm
Is it?

7 - (-15)?

or

7 - 15?

- math -
**cassandra**, Monday, May 2, 2011 at 4:59pm
7 - (-15) equals?

- math -
**Ms. Sue**, Monday, May 2, 2011 at 5:08pm
When adding and subtracting negative numbers, the answer is positive when you have two negatives.

Study this site carefully.

http://www.mathsisfun.com/positive-negative-integers.html

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