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Counting to 20 — Missing Numbers is a free printable Kindergarten maths worksheet on the count sequence within 20, aligned to Common Core standard K.CC.A.1. 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 pupils in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 11 of 25 · the same problems every time you open this link.

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One paper per pupil

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Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Counting to 20 — Missing Numbers

K.CC.A.1

NameDate

Write the missing numbers.

1.3478
2.671011
3.56910
4.2457
5.78912
6.9121314
7.58910
8.10111315

LessonPrint · K.CC.A.1 · Set 11 · free to copy for classroom use

Answer key — Counting to 20 — Missing Numbers

Set 11. Prints on its own sheet.

  1. 1.5, 6
  2. 2.8, 9
  3. 3.7, 8
  4. 4.3, 6
  5. 5.10, 11
  6. 6.10, 11
  7. 7.6, 7
  8. 8.12, 14

Last reviewed 2026-09-05. Aligned to K.CC.A.1 of the Common Core State Standards for mathematics.