Answer:
It is 219ºF warmer.
Step-by-step explanation:
How many degrees warmer is 111°F than -108°F?
We find this subtracting 111ºF from -108ºF.
Subtracting by a negative number is the same as adding the number. So:
111 - (-108) = 111 + 108 = 219
It is 219ºF warmer.