At lunch, Julie found the temperature outside to be 24°C. If the temperature drops to 13°C at night, what is the total temperature difference in kelvins?
To change to Kelvins you add 273. So 24 in Kelvins is 297K and 13 in kelvins is 286K. For the answer just subtract 286K from 297K. Which is 297-286= 11K. 11K is the answer.
