This question has to do with some annoying anomaly when expressing in scientific notation whole numbers that are multiples of powers of 10. For instance, 2000 is usually written in scientific notation as 2x10^3, implying that the original number has 1 significant digit. On the other hand, 2025 would become 2.025x10^3, with 4 significant digits. Now, consider the scenario in which these two results came from a real estate appraiser measuring two rectangular houses, with exterior dimensions 50'x40' and 45'x45' respectively, using the same tape measure. How can we explain this (factually unjustified) disparity in presuming the number of significant digits? Could it be the case that we are generally suspect of trailing zeros, perhaps stemming from some subconscious probability estimation? Is there such thing as a "standards" document governing translation from decimal notation to scientific notation, or are we at the whim of the individual mathematician or scientist's authority we happen to run into? Please help clarify this phenomenon from the scientist's perspective.