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Missing Middle Letter is a free printable Kindergarten English worksheet on spelling the vowel in a three-letter word, aligned to Common Core standard L.K.2. It prints 8 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 1 of 25 · the same problems every time you open this link.

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All 25 sets ask different questions.

Missing Middle Letter

L.K.2

NameDate

Write the missing letter.

1.A p___g says oink.

Choose: i · e · u

2.We ride the b___s to school.

Choose: u · i · a

3.The c___t says meow.

Choose: a · o · u

4.We dig in the m___d.

Choose: u · a · e

5.The d___g barks.

Choose: o · i · u

6.I put jam on my b___n.

Choose: u · a · i

7.I can count to t___n.

Choose: e · i · a

8.I hit the ball with a b___t.

Choose: a · i · e

LessonPrint · L.K.2 · Set 1 · free to copy for classroom use

Answer key — Missing Middle Letter

Set 1. Prints on its own sheet.

  1. 1.i
  2. 2.u
  3. 3.a
  4. 4.u
  5. 5.o
  6. 6.u
  7. 7.e
  8. 8.a

Questions about Missing Middle Letter

What does the Missing Middle Letter worksheet cover?

It practices spelling the vowel in a three-letter word — 8 questions for Kindergarten, all on Common Core L.K.2: Start sentences with a capital, end them with a period, and spell simple words. The instruction to students is “Write the missing letter”, and the answer key follows on the next sheet.

Which Common Core standard does Missing Middle Letter practice?

CCSS.ELA-LITERACY.L.K.2 — L.K.2, under Language for Kindergarten. The published standard reads: “Demonstrate command of the conventions of standard English capitalization, punctuation, and spelling when writing.” The worksheet assesses that standard rather than a paraphrase of it.

What age or grade is this worksheet for?

Missing Middle Letter is written for Kindergarten, typically ages 5-6. It is one of the sheets on L.K.2, so it suits any student working at that standard — including older students revisiting it and younger ones working ahead.

Does Missing Middle Letter come with an answer key?

Yes. All 8 answers are generated from the same problems as the questions, so the key cannot drift out of step with the sheet. It starts on a fresh sheet of paper, after the questions, so it is not handed out with the class by accident.

How many different versions of Missing Middle Letter can I print?

25 — one per student, and all 25 ask different questions. Set 1 downloads the whole class as a single PDF. Every version is fixed to its own address, so a sheet printed today holds the same problems when you reopen it next week.

Is Missing Middle Letter free to print and photocopy?

Yes. Missing Middle Letter, its answer key and its 25 versions are free to print and photocopy for your own class, with no account, no email capture and no subscription at the download step. Please do not resell them or republish them as your own.

More practice for L.K.2

Start sentences with a capital, end them with a period, and spell simple words.

All Kindergarten worksheets

Last reviewed 2026-09-05. Aligned to L.K.2 of the Common Core State Standards for English Language Arts.