Grammatically Correct 2/19/08
A weekly grammar tip created by Academic Center Peer Writing Tutors.
University of Houston-Victoria
3007 N. Ben Wilson
Victoria, TX 77901

Using Numbers in Sentences

The Author

Nick Jobe is pursuing a degree in English with secondary teaching certification and has tutored in the Academic Center since January 2007. He is a writer, novelist, and fall 2007 winner of the Golden Ampersand award. He would also like long walks on the beach if he liked going to the beach… or walking.

 


 

Numbers can be confusing things to put into writing. The biggest question is always should I use the figure or write it out? This tip will discuss when to use the numeral or when to spell it out, what to do when two different numbers are adjacent to each other, and how to deal with numbers that relate. The term numbers is used for when the number is spelled out (eight), and numerals is used when the number is given in a figure form (8).

Note: Much controversy exists about the correct usage of numbers in writing. Depending on the format being used (MLA, APA, Chicago), the rules might vary. For instance, Chicago style writes out numbers from one to one hundred. Some styles recommend spelling out numbers over ten unless writing the number involves using more than two words.

Please check your style manual if your instructor or employer requests that you use a specific style.

The following are general guidelines for academic or business use.

Written or Figures

Generally, numbers that are less than 10 are written out, and numerals are used for numbers that are 10 or more.

Ex. Bob was abducted by two Martians.

Ex. I have 99 red balloons.

In most style guides, when numbers are used at the beginning of the sentence, they are spelled out.

Ex. Thirty turtles crossed the desert.

The sentence can also be re-written so that the number comes later in the sentence (to be used as a numeral). This option may be especially useful if having the number at the beginning of the sentence causes an awkward sentence.

Ex. Running from the Martians, 30 turtles crossed the desert.

Adjacent Numbers

When two numbers are used adjacent to each other, one number should be written and one should be put in numerals. Generally, the number with the least number of letters when spelled is written out.

Ex. Sally had one 12-inch Subway sandwich.

The hyphen here is used because 12-inch describes the sandwich.

Relative Numbers

When numbers are relative to each other, they should be written in the same style. If one number is put in numerals, then both numbers should be in numerals and vice-versa.

Ex. Bob had not 10 cups of coffee, but 8.

Ex. Sally didn’t ride her horse for two hours; she rode for three.

 


 

Test Your Knowledge

Determine whether the following numbers should be written out or given in numerals.

  1. Sally sang (2, two) 3-minute songs.

  2. Bob bought not (36, thirty-six) stamps, but 24.

  3. The parade lasted (1, one) hour.

  4. In the (12, twelve) years I worked there, I had never been late.

  5. It was (5, five) PM.



Answers
 

  1. Sally sang two 3-minute songs.
  2. Bob bought not 36 stamps, but 24.
  3. The parade lasted for one hour.
  4. In the 12 years I worked there, I had never been late.
  5. It was 5 PM.

 

Suggested Resources

Related Academic Center Resources

A previous issue of Grammatically Correct discussed Plurals of Letters, Abbreviations and Numbers. It was published on 7/11/06 and written by David Felts. Additionally, our Checklist for Scientific Writing by Candice Chovanec Melzow discusses how to use numbers (and abbreviations, acronyms, and so on) in scientific writing.

Recommended Grammar Website of the Week

This week we recommend the following website: http://www.grammarbook.com/numbers/numbers.asp. This website gives examples of when to use numerals or when to write out the numbers.

 

 

Grammatically Correct is a grammar tip of the week created by Academic Center Peer Writing Tutors at the University of Houston-Victoria in Victoria, Texas.

Comments about this newsletter should be directed to Summer Leibensperger, leibenspergers@uhv.edu.

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