288.15K, 298.15K and 308.15K are the correct representation.

Thanks Sanjay Roy Sir, your valuable replay to me

288.15K, 298.15K and 308.15K this is correct.

298.15 K = 25 ºC

298 K = 24.85 ºC

International Temperature Scale of 1990 (ITS-90)

t(90)/°C = T(90)/K - 273.15

0º C = 273.15 K (Kelvin Temperature)

https://www.bipm.org/en/committees/cc/cct/publications-cc.html#kelvin-and-temperature-scales

thank you Pravin Hudge Sir

Thank you José Carlos Cobos Sir

Two types of displays can be correct, each of them represents the temperature measurement uncertainty.

I agree with Hosseinali Zarei , but I imagine if my quartz thermometer has a precision of +/- 0.001 °C, what's I will do?

In research, we must add 273.15 to °C, even if the uncertainty is large or precision of the thermometer is more than 0.15 by degree, ....

In teaching, we can do approximation, and add only 273, because the students prefer simple numerical applications in exercises, .....

298.15, 303.15, 313 15 K is correct.

0 C is equal to 273 15 K

It is absolutely right. Thank you sir.

Thank you sir.