Skip to content
LessonPrint

Subtraction Facts Within 20 is a free printable Grade 2 maths worksheet on recall of the matching subtraction facts, aligned to Common Core standard 2.OA.B.2. It prints 24 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.

Next set

One paper per pupil

12345678910111213141516171819202122232425

All 25 sets ask different questions.

Subtraction Facts Within 20

2.OA.B.2

NameDate

Work out each answer.

1.15 − 1 =
2.20 − 1 =
3.9 − 5 =
4.12 − 3 =
5.16 − 6 =
6.10 − 7 =
7.8 − 3 =
8.20 − 3 =
9.19 − 19 =
10.14 − 7 =
11.19 − 7 =
12.11 − 8 =
13.7 − 7 =
14.10 − 2 =
15.8 − 8 =
16.14 − 2 =
17.16 − 14 =
18.15 − 14 =
19.20 − 15 =
20.15 − 13 =
21.19 − 13 =
22.20 − 18 =
23.16 − 9 =
24.17 − 7 =

LessonPrint · 2.OA.B.2 · Set 1 · free to copy for classroom use

Answer key — Subtraction Facts Within 20

Set 1. Prints on its own sheet.

  1. 1.14
  2. 2.19
  3. 3.4
  4. 4.9
  5. 5.10
  6. 6.3
  7. 7.5
  8. 8.17
  9. 9.0
  10. 10.7
  11. 11.12
  12. 12.3
  13. 13.0
  14. 14.8
  15. 15.0
  16. 16.12
  17. 17.2
  18. 18.1
  19. 19.5
  20. 20.2
  21. 21.6
  22. 22.2
  23. 23.7
  24. 24.10

Questions about Subtraction Facts Within 20

What does the Subtraction Facts Within 20 worksheet cover?

It practises recall of the matching subtraction facts — 24 questions for Grade 2, all on Common Core 2.OA.B.2: Know addition and subtraction facts within 20 by heart. The instruction to pupils is “Work out each answer”, and the answer key follows on the next sheet.

Which Common Core standard does Subtraction Facts Within 20 practise?

CCSS.MATH.CONTENT.2.OA.B.2 — 2.OA.B.2, in the Operations & Algebraic Thinking domain for Grade 2. The published standard reads: “Fluently add and subtract within 20 using mental strategies. By end of Grade 2, know from memory all sums of two one-digit numbers.” The worksheet assesses that standard rather than a paraphrase of it.

What age or grade is this worksheet for?

Subtraction Facts Within 20 is written for Grade 2, typically ages 7-8. It is one of the sheets on 2.OA.B.2, so it suits any pupil working at that standard — including older pupils revisiting it and younger ones working ahead.

Does Subtraction Facts Within 20 come with an answer key?

Yes. All 24 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 Subtraction Facts Within 20 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 Subtraction Facts Within 20 free to print and photocopy?

Yes. Subtraction Facts Within 20, 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 2.OA.B.2

Know addition and subtraction facts within 20 by heart.

All Grade 2 worksheets

Last reviewed 2026-09-05. Aligned to 2.OA.B.2 of the Common Core State Standards for mathematics.