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Add Within 5 — Missing Number is a free printable Kindergarten maths worksheet on the unknown moved out of the answer position, aligned to Common Core standard K.OA.A.5. It prints 12 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 5 of 25 · the same problems every time you open this link.

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

Add Within 5 — Missing Number

K.OA.A.5

NameDate

Work out each answer.

1.___ + 0 = 2
2.___ + 2 = 7
3.___ + 2 = 4
4.___ + 0 = 4
5.___ + 4 = 4
6.___ + 4 = 8
7.___ + 3 = 8
8.___ + 1 = 4
9.___ + 1 = 1
10.___ + 5 = 9
11.___ + 3 = 5
12.___ + 0 = 5

LessonPrint · K.OA.A.5 · Set 5 · free to copy for classroom use

Answer key — Add Within 5 — Missing Number

Set 5. Prints on its own sheet.

  1. 1.2
  2. 2.5
  3. 3.2
  4. 4.4
  5. 5.0
  6. 6.4
  7. 7.5
  8. 8.3
  9. 9.0
  10. 10.4
  11. 11.2
  12. 12.5

Last reviewed 2026-09-05. Aligned to K.OA.A.5 of the Common Core State Standards for mathematics.