Integers

__**Adding Positive and Negative Integers**__
by: Anthony

On this page we are going to talk about adding intergers. We will start buy adding the same intergers first. 1. 2+3=5 2. -2+(-3)=(-5) When you add a positive with a positive or a negative with a negative you use the sign thats already there. For example on problem 1 a positive and a positive means that the answer will be a positive. Also a negative and a negative would equal a negative number.

Also when adding integers you can rewrite it as a subtraction problem. For instance on problem 1 it could be rewritten as 2-(-3)=5 The reason for this is because Its a double negative. As we all know a double negative equals a positve. I will show you a problem from the worksheet which I will change into a subtraction problem. 5+3=8 5-(-3)=8 Once again you see the double negative. Thats all there is to adding integers In the next session brandon will talk about how to subtract intergers.


 * __Positive and Negative Integers__** by: Brandon

Subtracting Negative and Positive Integers
To subtract integers, change the sign on the integer that is to be subtracted. > Example: 14 - (-6) = 14 + 6 = 20 > Example: -14 - (+6) = -14 - 6 = -20 > Example: 14 - (+6) = 14 - 6 = 8 > Example: -14 - (-6) = -14 + 6 = -8
 * If both signs are positive, the answer will be positive.
 * If both signs are negative, the answer will be negative.
 * If the signs are different subtract the smaller absolute value from the larger absolute value. The sign will be the sign of the integer that produced the larger absolute value.

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