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Negative Numbers (Real Numbers)>
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Add and Subtract Negative Numbers 1Add and Subtract Negative Numbers 1
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Question 1 of 4
1. Question
Evaluate`-9-4`- (-13)
Hint
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Same Sign = Find the Sum
Different Sign = Find the Difference
Method OneSince the signs are the same `(- -)` we will find the sum of the two numbers`9+4` `=` `13` Find the Sum `\text(Sum)` `=` `13` Insert the sign of the larger number `(-9)` to the sum`-9-4` `=` `-13` Insert a negative sign since the larger number, `9`, is negative `-13`Method TwoStart at `-9`, then since `4` is negative move left `4` places`-9` `-4` `=` 
`-9-4` `=` `-13` `-13` -
Question 2 of 4
2. Question
Evaluate`-8+11`- (3)
Hint
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Same Sign = Find the SumDifferent Sign = Find the DifferenceMethod OneSince the signs are different `(- +)` we will find the difference of the two numbers`11-8` `=` `3` Find the Difference `\text(Difference)` `=` `3` Insert the sign of the larger number `(+11)` to the difference`-8+11` `=` `3` Insert a positive sign since the larger number, `11`, is positive `3`Method TwoStart at `-8`, then since `11` is positive, move right `4` places`-8` `+11` `=` 
`-8+11` `=` `3` `3` -
Question 3 of 4
3. Question
Evaluate`-5+6`- (1)
Hint
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Correct!
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Same Sign = Find the SumDifferent Sign = Find the DifferenceMethod OneSince the signs are different `(+ -)` we will find the difference of the two numbers`6-5` `=` `1` Find the Difference `\text(Difference)` `=` `1` Insert the sign of the larger number `(+6)` to the difference`-5+6` `=` `1` Insert a positive sign since the larger number, `6`, is positive `1`Method TwoStart at `-5`, then since `6` is positive move right `6` places`-5` `+6` `=` 
`-5+6` `=` `1` `1` -
Question 4 of 4
4. Question
Evaluate`-7-2`- (-9)
Hint
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Well Done!
Incorrect
Same Sign = Find the SumDifferent Sign = Find the DifferenceMethod OneSince the signs are the same `(- -)` we will find the sum of the two numbers`7+2` `=` `9` Find the Sum `\text(Sum)` `=` `9` Insert the sign of the larger number `(-7)` to the sum`-7-2` `=` `-9` Insert a negative sign since the larger number, `7`, is negative `-9`Method TwoStart at `-7`, then since `2` is negative move left `2` places`-7` `-2` `=` 
`-7-2` `=` `-9` `-9`
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