In your math book, draw a diagram to represent each of these situations. Then, describe your diagram by filling in the blanks with the appropriate number or word for each part of the question: The first arrow starts a zero and goes to (what number?). The second arrow starts at (what number?) and goes to the (left/right) (what number?) units. Finally, write an addition expression that represents the final temperature. a. The temperature was 80°F and then fell 20°F.
b. The temperature was -13°F and then rose 9°F.
c. The temperature was -5°F and then fell 8°F.