Unit Vocabulary
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| Adding integers with the same sign | same signs add and keep the sign
ex. 2- + -4 = -6
2 + 4 = 6
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| Adding integers with different signs | Subtract the integers. Keep the sign of the greatest absolute value
ex. 2 + -4 = -2
-2 + 4 -2
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| Subtracting Integers | Add the opposite or
Keep, change, change
Then follow addition rules
keep 1st #, change (-) to (+), change sign of 2nd #
ex. -4 - 2 = -4 + -2 = -6
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| Distance between two integers | Find the absolute value of the difference (subtract) of the two integers
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| Additive inverse | The opposite of a number
the sum of a number and its additive inverse is 0
ex. 5 + -5 = 0
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| absolute value | The distance a number is from zero on a number line. ALWAYS POSITIVE .The notation is 2 bars.
ex. the absolute value of 5 is 5, the absolute value of -5 is 5
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| Multiplying or dividing integers with different signs | negative
ex. 5 x -2 = -10
ex. -10/2= -5
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| Multiplying or dividing integers with same signs | positive
ex. 5x5=25
-25/-5=5
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