Answer:
-7 , -9 and -10
Explanation:
The main temperature is -5°C.
-5 is a negative number so a colder temperature will be a number that is less than -5
substracting this number from -5 will give us a positive number
- -5-(-7)= 2
- -5-(-9)= 4
- -5-(-10) = 5