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Integers are any positive or negative whole numbers. The set of Integers: . . . -5, -4, -3, -2, -1, 0, 2, 3, 4, 5, . . . In order to work with these numbers, you must understand the following rules: Two negatives beside one another are changed to a positive sign, so you really add: 
A negative and positive beside each other are changed to a negative sign, so you subtract: 
An even number of negatives in the problem result in a positive answer when multiplying or dividing:  
An odd number of negatives in the problem result in a negative answer when multiplying or dividing:  
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