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Turn It Around — Adding to 10 is a free printable Grade 1 maths worksheet on commutativity within ten, shown as a pair, aligned to Common Core standard 1.OA.B.3. 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 2 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.

Turn It Around — Adding to 10

1.OA.B.3

NameDate

Fill in both blanks.

1.7 + 3 = ___ , so 3 + 7 = ___
2.2 + 2 = ___ , so 2 + 2 = ___
3.6 + 2 = ___ , so 2 + 6 = ___
4.2 + 8 = ___ , so 8 + 2 = ___
5.6 + 3 = ___ , so 3 + 6 = ___
6.6 + 7 = ___ , so 7 + 6 = ___
7.5 + 3 = ___ , so 3 + 5 = ___
8.7 + 4 = ___ , so 4 + 7 = ___
9.8 + 2 = ___ , so 2 + 8 = ___
10.6 + 5 = ___ , so 5 + 6 = ___
11.4 + 2 = ___ , so 2 + 4 = ___
12.4 + 3 = ___ , so 3 + 4 = ___

LessonPrint · 1.OA.B.3 · Set 2 · free to copy for classroom use

Answer key — Turn It Around — Adding to 10

Set 2. Prints on its own sheet.

  1. 1.10 and 10
  2. 2.4 and 4
  3. 3.8 and 8
  4. 4.10 and 10
  5. 5.9 and 9
  6. 6.13 and 13
  7. 7.8 and 8
  8. 8.11 and 11
  9. 9.10 and 10
  10. 10.11 and 11
  11. 11.6 and 6
  12. 12.7 and 7

More practice for 1.OA.B.3

Use facts you know to work out ones you do not — like knowing 3+8 because you know 8+3.

Teaching this next? Using Known Facts to Add is the 40-minute plan for it, with the misconceptions to expect.

All Grade 1 worksheets

Last reviewed 2026-09-05. Aligned to 1.OA.B.3 of the Common Core State Standards for mathematics.