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Math Help - Subtracting real numbers

  1. #1
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    Smile Subtracting real numbers

    The lowest temperature ever recorded in the state of Oregon was -54 F (in Seneca, on Friday 10, 1933). The state’s record high temperature occurred in Pendleton on August 10, 1898, when it reached 119 F. What is the historical temperature range in the state of Oregon?

    my answer is

    -54 + 119 = 65 (not sure if that is right)
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  2. #2
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    Quote Originally Posted by Patience View Post
    The lowest temperature ever recorded in the state of Oregon was -54 F (in Seneca, on Friday 10, 1933). The state’s record high temperature occurred in Pendleton on August 10, 1898, when it reached 119 F. What is the historical temperature range in the state of Oregon?

    my answer is

    -54 + 119 = 65 (not sure if that is right)
    To get the range you need to get the absolute value of the DIFFERENCE between the two extreme temperatures:
    |-54 -119| = |-173| = 173
    (or you could find |119 - (-54)| = 173)

    -Dan
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