What is the answer to this

Question

At 7 P.M. the temperature was 5°F. At midnight the temperature was -7°F. What was the change in temperature?

Answer 1

So we take the higher temperature and subtract the lower temperature. That gives us the following:

5 - (-7)

When we subtract a negative, that gives us a positive:

5 + 7

Add those together, and you have your final answer.