Question

The lowest temperature ever recorded in the state of Oregon was
54°F (in Seneca, on February 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?

Answer 1

The "range" of anything is the difference (distance, of a sort) between the two. Normally, you'd just subtract, but since one of the numbers you are referring to, I think, is a negative (-54 degrees, right?), your problem will look like this:

119 - (-54) = range

What happens when you have two negatives in a subtraction problem?

http://www.aaastudy.com/sub.htm#topic54
Click on <b>Subtraction Equations - 2 Digit Integers</b>. Then let us know what you come up with, and someone here will give you feedback.

=)