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Mixed Facts Within 5 is a free printable Kindergarten maths worksheet on switching operation item by item, with unknowns moved, 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 1 of 25 · the same problems every time you open this link.

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All 25 sets ask different questions.

Mixed Facts Within 5

K.OA.A.5

NameDate

Work out each answer.

1.4 + ___ = 6
2.0 + ___ = 1
3.0 + ___ = 2
4.1 + ___ = 5
5.5 + ___ = 10
6.3 + ___ = 4
7.___ − 5 = 0
8.___ − 3 = 0
9.___ − 1 = 1
10.___ − 1 = 4
11.___ − 2 = 1
12.___ − 1 = 3

LessonPrint · K.OA.A.5 · Set 1 · free to copy for classroom use

Answer key — Mixed Facts Within 5

Set 1. Prints on its own sheet.

  1. 1.2
  2. 2.1
  3. 3.2
  4. 4.4
  5. 5.5
  6. 6.1
  7. 7.5
  8. 8.3
  9. 9.2
  10. 10.5
  11. 11.3
  12. 12.4

Questions about Mixed Facts Within 5

What does the Mixed Facts Within 5 worksheet cover?

It practises switching operation item by item, with unknowns moved — 12 questions for Kindergarten, all on Common Core K.OA.A.5: Add and subtract small numbers quickly, without counting every time. The instruction to pupils is “Work out each answer”, and the answer key follows on the next sheet.

Which Common Core standard does Mixed Facts Within 5 practise?

CCSS.MATH.CONTENT.K.OA.A.5 — K.OA.A.5, in the Operations & Algebraic Thinking domain for Kindergarten. The published standard reads: “Fluently add and subtract within 5.” The worksheet assesses that standard rather than a paraphrase of it.

What age or grade is this worksheet for?

Mixed Facts Within 5 is written for Kindergarten, typically ages 5-6. It is one of the sheets on K.OA.A.5, so it suits any pupil working at that standard — including older pupils revisiting it and younger ones working ahead.

Does Mixed Facts Within 5 come with an answer key?

Yes. All 12 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 Mixed Facts Within 5 can I print?

25 — one per pupil, 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 Mixed Facts Within 5 free to print and photocopy?

Yes. Mixed Facts Within 5, 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 K.OA.A.5

Add and subtract small numbers quickly, without counting every time.

All Kindergarten worksheets

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