Writing worksheet · Capitalization and punctuation

Hyphens in Number Words

Eight numbers to write in words with a hyphen, plus forty, the one that has no hyphen and no u.

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Grade level
Grades 3–5
Time
About 20 minutes
Answer key
Yes, page 2 of the PDF
Kids practice
Capitalization, End punctuation, Commas and apostrophes, Editing for conventions

What kids do

“Number words from twenty-one to ninety-nine get a hyphen between the tens and the ones. Write each number in words.”

Printed on the sheet:

  1. 36 → thirty-six · Watch out: 40 is forty, with no hyphen and no u.

Teacher tip

Point out that the hyphen only shows up in numbers from twenty-one to ninety-nine.

How to use it

  • Use a colored pencil for every fix so the edits stand out.
  • Post an anchor chart of the rule where kids can see it while they work.
  • Read the directions aloud so the sheet is about writing, not decoding the directions.

Watch for

Kids who fix the sheet but not their own writing. Connect the rule to the next writing task.

Talk about it

  • How does the punctuation change the way you read it?
  • Where else do writers use this skill?

Take it further

Have kids edit one paragraph of their own writing for this rule only.

US Letter, prints well in black and white. Free for home and classroom use: print as many copies as you need.

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