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7 Cards in this Set
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Positive Numbers

add the same as arithemitc numbers. The answer is positive.

Negative Numbers

Add absolute numbers, the answer is negative.

A positive and a negative number

Subtract the smaller absolute value from the larger. Then:
A) if the positive number has the greater absolute value, theanswer is positive B) If the negative number has the greater absolute value, the answer is negative C) if the numbers have the same absolute value, the answer is 0. 
One number is Zero

the sum is the other number

Identity Property of Zero

for any real number a, a+0=a

Opposites

the opposites or the additive inverse of a number "a" is written as "a" opposites are are the same distance from 0 on the number line on different side of 0

Opposite of the Opposite

the opposite of the opposite of a number is the number
I.e. (a) = a 