Learn To Write Numbers in English
- michael0585
- Feb 2, 2021
- 3 min read
Updated: Mar 15
Introduction - learn to write numbers in English
In this article, I will teach you about the conventional use of numbers in writing, particularly academic writing.
They are common-sense rules really, often for convenience, or ease, as you will see.
These, then, are the rules for using numbers.
Spell out those numbers that can be expressed in one or two words.
Examples:
The journey down the river by canoe took eighteen days.
There are twenty-three children in my class.
The ferry had room for three hundred passengers.
Thousands of people visited the museum that day.
When numbers consist of more than two words, use numerals.
Examples:
More than 350 people attended the party.
(The alternative is to write ‘three hundred and fifty’, so, as I mentioned above, it is easier to write the three-digit number.)
Fractions need to be spelled out.
Example:
Only one-third of the children attended school today.
If a sentence begins with a number, then spell out the number. If the number
consists of more than two words, it should not be placed at the beginning of
the sentence.
Example:
Seven hundred guests were told to evacuate the building.
The number of votes separating the two candidates is 3,284.
Spell out the words million, billion, or trillion, if they appear in a sentence.
Example:
About three million consumers were without electricity as a result of the storm last night.
When writing addresses, times, dates, degrees, percentages, pages, or book divisions, write out the word ‘dollar’ or ‘percent’ but use numerals with prices.
Example:
A yearly subscription to the magazine costs 34 dollars, which is about 20 percent less than the newsstand price.
Several Numbers in a Sentence
When writing two consecutive numbers, the rule is that the shorter number is written out.
Example:
We used two 16-foot poles.
When writing a series of numbers, be consistent. If some numbers require numerals, then use numerals for all of the numbers.
Example:
The guests consumed 300 appetizers, 4 kilograms of cheese, and 130 glasses of wine.
Cheques (US ‘checks’) for payment are rare these days.
However, if you have to write a cheque you have to write the amount both in words and numbers to prevent the numbers being changed to defraud either the payer or the payee.
For example, a ‘1’ could be changed to a ‘4’ or a ‘7’; spelling the number prevents this. A ‘one’ is not a ‘four’ or a ‘seven’.
On the cheque this would be written, along with a date and a signature:
Pay (name) the sum of ….. Three thousand, four hundred and sixty-five dollars and thirty-five cents.
$ 3,465.35
Conclusion
I hope this article has helped you understand the rules of grammar regarding numbers and to learn to write numbers in English.
By following these rules, your writing will be much improved.
As you can see, the way numbers are either spelled out or left as numerals make it easier to write and are more convenient.
How I can help you get better Grammar
What you have learned here is useful if you want to improve your grammar.
The best place to start is with The Structured Grammar System.
Grammar skills work best when they are learned in sequence and with other skills.
That sequence forms The Complete English Mastery System.
Further Reading
Having good grammar should be an essential skill to getting good English. Read this article to learn why having good grammar is very important.
© Apex English Tutoring Feb 2021 - Updated Mar 2026
About Me
Hello and welcome!
My name is Michael Finemore and I am the owner-operator of Apex English Tutoring.
As an experienced English Teacher, I'm passionate about helping people turn their 'poor' English into great English, with easy and effective ways to practice.
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