Lol I cannot believe that you think that a accuracy of 64th of an inch measurement was the standard around 950 BC.
I expect a claim that the Bible is totally accurate to be debunked by the fact that the Bible in many instances is not accurate !
I expect a worker in brass touted as "filled with wisdom, and understanding, and cunning to work all works in brass" (1 Kings 7:14) to be able to report measurements to an accuracy of
at least the length of his thumb (about a tenth of a cubit). So a bowl with a diameter of 10.0 cubits should have been reported by Hiram out of Tyre as having a circumference of 31.4 cubits. When and how that would be recorded is unknown.
No rational person would expect all of the Bible to be totally accurate though given its providence. The
Books of Kings for example is based on several lost texts and was heavily edited. Add in the many transcriptions and translations and the possibility of a scribe somewhere, sometime copying a number like "31.4" as "30" is good. Read
Hebrew numerals to see that 31 would be written as 2 glyphs for 30 and 1. But it does not say how fractions would be written.