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Originally Posted by Scrapper1
Unless my education was extremely lacking, 14 = 14.0 and 15 = 15.0. So stating 14 is equivalent to stating 14.0. No?
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No.
Google "significant digits" (you should have learned this in HS science class btw...). But the short answer is 14.0 states we care about tenths (seconds, meters, whatever) because we are able to know the value of the tenths. 14 states we are not able to know the value of the tenths so we go out of our way to ignore them.
So the way the rules under discussion are worded we are not to consider 10ths at all.