1.2 subtracting how are adding integers and subtracting
TRANSCRIPT
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How are adding integers and subtracting integers related?
1.2
SUBTRACTING INTEGERS
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3 - 2 Both Positive
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3 - 2 Both Positive
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3 + (- 2) Compared to Adding
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3 + (- 2) Compared to Adding
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a number is the same as
the of that number
In Words…
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HOW TO SUBTRACT INTEGERS USING A
NUMBER LINE:
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-4 - 1
Using a Number Line
-4
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-4 - 1
Using a Number Line
-4 -1
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To an integer, change the sign
sign and make the integer
General Rule
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ADDITIVE INVERSE PROPERTY:
+ =
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-4 + 4 - 9
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-4 + 4 - 9
-4
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-4 + 4 - 9
-4 4
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-4 + 4 - 9
-4 4
-9