When it say change it of temperature do you have to subtract?

When adjusting for temperature changes in calculations or experiments, whether to subtract or add depends on the context. If you're comparing two temperatures and you need to find the difference, you subtract the lower temperature from the higher one. However, if you're adjusting a value based on a temperature change, the operation will depend on whether the temperature is increasing or decreasing. Always consider the specific scenario to determine the correct operation.