Question

The temperature was
10
degrees below
0
when Jennifer woke up. The temperature then dropped another
5
degrees before Jennifer went outside.



Which number line models how to calculate the temperature at the time when Jennifer went outside?



A.
image


B.
image


C.
image


D.
image

Answer 1

Start at -10 (10 degrees below 0) and drop 5 more degrees: -10 − 5 = -15.

So pick the number line that starts at -10 and moves 5 units to the left to -15. (This is choice C.)