How do you find the least precision?

Answer 1

Start by measuring accurately, then just remove digits until you have the precision you want.

Answer 2

To find the least precision, look for the smallest increment or smallest degree of accuracy in the measurement tool or system being used. This is usually the smallest unit of measurement that the tool can detect or the smallest change that the system can register. Identifying the least precision helps in understanding the level of detail or accuracy that can be reliably obtained from the measurement.