Write two expressions to represent the following situation. Then, find the answer. When Nathan went to bed, the outside temperature was 28°F. When he woke up the next morning, the temperature had decreased to -13°F. By how many degrees did the temperature change during the overnight hours?
28°F and it decreased to -13°F. The word decreased is just meaning minus so... 28 - -13 and the two negatives cancel each other out making it a plus so 28+13= 41.
