Question

Sara used a number line to add. She started counting at 10, and then she counted until she was over the number –4 on the number line. If Sara is modeling addition, what number did she have to add to 10?
Explain and show your reasoning.

Answer 1

Answer:

-14

Step-by-step explanation:

Answer 2

She added a -14 because if you have 10 and you add a -14, you will get -4