The air temperature drops from 24 F- 2 F in 15 minutes. What is the change in temperature? Write a number sentence to.

It's either degrees

24 - 2 = 22

or

24 - (-2) = 26 degrees

I don't get it. :(

Study this site.

http://www.mathsisfun.com/positive-negative-integers.html

To find the change in temperature, you subtract the final temperature from the initial temperature. In this case, the initial temperature is 24°F and the final temperature is 2°F.

Change in temperature = Final temperature - Initial temperature
Change in temperature = 2°F - 24°F

Now we can calculate the change in temperature:
Change in temperature = -22°F

So, the change in temperature is -22°F.

As for the number sentence, it would be:
2°F - 24°F = -22°F