It was 13°C yesterday but the temperature change the -18.6 overnight. What is the temperature now?

To find the current temperature, we need to subtract the temperature change from yesterday's temperature.

Current temperature = Yesterday's temperature - Temperature change

Current temperature = 13°C - (-18.6°C)

To subtract a negative number, we change the sign and add.

Current temperature = 13°C + 18.6°C

Current temperature = 31.6°C

Therefore, the current temperature is 31.6°C.

To find the current temperature after the overnight change, we need to subtract the temperature change from the temperature yesterday.

The temperature change overnight is -18.6°C, and the temperature yesterday was 13°C.

To find the current temperature, we subtract the temperature change from the temperature yesterday:

13°C - 18.6°C = -5.6°C

Therefore, the current temperature is -5.6°C.