When to Hyphenate Numbers

Why we need hyphens in numbersKnowing when to hyphenate numbers is important because the correct use of the hyphen helps your reader to understand which numbers are part of a given adjective and avoids any ambiguity.

Let’s look at the example on the left.

Is the guy working twenty shifts that are each four hours long, twenty-four shifts that are each an hour long? Or shifts that last twenty-four hours in total?

As you can see, where you place the hyphen in the number can make a significant difference to the meaning of the sentence.

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