Question

Diamond used a number line to add. She started counting at 10, and then she counted until she was on the number -4 on the number line. If Diamond is modeling addition, what number did she add to 10? But I need to explain how I got the answer and I need to make up a real world situation using this problem please somebody help me this is due at 12:45

Answer 1

Diamond added the number -14 to 10. A real-world situation could be measuring sea-level elevation.

Step-by-step explanation:

To find the number that Diamond added to 10, we can count in the opposite direction on the number line. Since Diamond started at 10 and counted until she was at -4, we need to find the number that, when added to 10, equals -4.

We can think of this as a subtraction problem. If we start with -4 and subtract 10, we get -14. Therefore, Diamond added the number -14 to 10.

A real-world situation that relates to this problem could be measuring sea-level elevation. If we start at a point 10 meters above sea level and then go down to a point that is 4 meters below sea level, we can say that we added -14 meters to our starting point.