1. thirty six point five degrees Celsius
2. thirty-six point five degrees Celsius
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Q1. Which one is right?
Q2. In which case do put a hyphen(-) between numbers?
1 answer
The hyphen is needed in spelling out numbers like "thirty-five" or "twenty-two", etc. Usually, in a sentence, we use the numerals, 36.5, if the number is above ten, although that rule is flexible. We might spell out "eleven" or "twelve" and it would be acceptable. At the beginning of a sentence, we spell out the numbers no matter what they are. "Thirty-six point five degrees Fahrenheit is optimal for refrigerating milk." "Milk keeps best at 36.5 degrees Fahrenheit."