Question

the Kelvin scale temperature is 270 K what is the corresponding Celsius scale temperature

Answer 1

the celcius scale
will be
-3 degree C

Answer 2

The kelvin scale temperature is 0 kelvin 
the corresponding Celsius temperature is -273° C , it is also called absolute zero , it is a temperature when no heat transfer takes place within particle or object and the molecular motion stops 

hope this helps