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the high temperature for a day in January was 7 degrees Fehrenheit. The low temperature that day was -5 degrees Fehrenheit. What is the difference in temperatures?

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 Aug 24, 2016
 #1
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-7  -6  -5  -4  -3  -2  -1   0   1   2   3   4   5  6  7

            1   2   3   4    5   6   7   8   9  10 11 12 13

13 degrees difference

 Aug 24, 2016
 #2
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7- (-5)  =  12 degrees difference

 

 

7     6     5     4     3     2     1     0    -1    -2    -3    -4    -5

   1  +  1 + 1  +  1 + 1  + 1  + 1  + 1  + 1  + 1  + 1  +  1       =   12

 Aug 25, 2016

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