Written Form of DecimalsDate: 03/21/2001 at 09:19:47 From: ceci stotz Subject: Written form for decimals Hello... What is the CORRECT way to write decimals? Example: 343.25 Is it: three hundred forty-three and twenty-five hundredths - OR- Is it: three hundred forty-three and twenty-five one hundredths? The "one" is the question. Do you add "one" in front of "hundredths"? What about hyphens, where do they go? Example: 46.6 Is it: forty-six and six tenths -OR- is it forty-six and six one tenths? Also for thousandths place? Thank you. Date: 03/21/2001 at 12:00:44 From: Doctor Rob Subject: Re: Written form for decimals Thanks for writing to Ask Dr. Math, Ceci. For 343.25, it is "three hundred forty-three and twenty-five hundredths." For 46.6, it is "forty-six and six tenths." For 82.554, it is "eighty-two and five hundred fifty-four thousandths." For 0.1008, it is "one thousand eight ten-thousandths." The word "and" is used only to designate the location of the decimal point. There are single words for numbers from 1 to 20, 30, 40, 50, 60, 70, 80, and 90. All other numbers from 21 to 99 use a hyphen. You also must use a hyphen when talking about ten-thousandths, hundred-billionths, and similar fractional denominations. Since hundredths and one-hundredths are the same, the shorter form is used. I have always thought it sounds redundant to say "one one-hundredth of an inch," but some people do use this terminology. - Doctor Rob, The Math Forum http://mathforum.org/dr.math/ |
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