Explanation:
To convert a temperature from degree Celsius to Kelvin add 273 to the value in degree Celsius
That's
K = 273 + °C
where
K is the temperature in Kelvin
°C is the temperature in degree Celsius
So we have
960.8° C = 273 + 960.8 = 1233.8 K
2212°C = 273 + 2212 = 2485 K
Hope this helps you