Is the comma before "and" required?

In school writing, yes; it's called the serial comma, and every correct answer on these sheets includes it. Some newspapers drop it, which is a style choice students may notice in the wild. We teach the version that prevents misreadings.

How does this skill show up in real writing?

Everywhere lists live: science observations, book reports, thank you notes. A student who punctuates a series cleanly writes sentences readers glide through. It's also among the most commonly tested conventions on state writing assessments.

3rd grade commas in a series

3rd grade commas in a series worksheets

Third graders handle series inside richer sentences, where list items are phrases rather than single words: spring melts snow, wakes bears, and fills rivers. Reading each sentence aloud and hearing where the pauses fall becomes the reliable check.

Free printable PDF worksheet.

Each print is a different sheet with its own answer key. You don't need to sign up.

The kind of sentences you'll fix

Add the missing commas to each sentence.

The relay team passed paced and pushed.
Fixed: The relay team passed, paced, and pushed.
The tide pool held crabs snails and starfish.
We ordered noodles dumplings and tea.

Every print pulls a new set of sentences at this level, so a make-up test or a second sibling gets a different mix.

What's on a 3rd grade sheet

3rd grade sheets draw from 60 sentences, 8 to a page. All 60 are on 2nd grade sheets too, along with 60 more. 2nd grade sheets print 7 to a page.

A few of the sentences, as the answer key corrects them:

Otters float, dive, and juggle stones.
The aquarium has rays, eels, and seahorses.
Spring melts snow, wakes bears, and fills rivers.

Fix it. Add the missing commas to each sentence. 8 sentences to fix per page.
Choose the sentence. Circle the letter of the sentence with the commas in the right places. 7 questions per page.

Every version prints on US Letter or A4, with its answer key on the last page.

How to teach this

These sheets use the serial comma (the one right before and) because it's the style schools teach. If your child asks why a book at home skips it, that's a real style difference, not an error; writers just have to pick one style and stay consistent.

Watch for: Two things joined by and need no comma at all: ham and eggs. The comma comes before and, never after it: mittens, and boots (not mittens and, boots).

Common questions about 3rd grade commas in a series

Is the comma before "and" required?: In school writing, yes; it's called the serial comma, and every correct answer on these sheets includes it. Some newspapers drop it, which is a style choice students may notice in the wild. We teach the version that prevents misreadings.
How does this skill show up in real writing?: Everywhere lists live: science observations, book reports, thank you notes. A student who punctuates a series cleanly writes sentences readers glide through. It's also among the most commonly tested conventions on state writing assessments.

3rd grade commas in a series worksheets

The kind of sentences you'll fix

What's on a 3rd grade sheet

How to teach this

Common questions about 3rd grade commas in a series

Related worksheets

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