Skip to content
LessonPrint

Subtraction Within 20 — Crossing Ten is a free printable Grade 1 maths worksheet on subtraction that bridges back over ten, aligned to Common Core standard 1.OA.C.6. It prints 16 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 12 of 25 · the same problems every time you open this link.

Next set

One paper per pupil

12345678910111213141516171819202122232425

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

Subtraction Within 20 — Crossing Ten

1.OA.C.6

NameDate

Work out each answer.

1.12 − 8 =
2.20 − 6 =
3.16 − 9 =
4.11 − 7 =
5.11 − 5 =
6.11 − 4 =
7.16 − 8 =
8.13 − 4 =
9.15 − 9 =
10.12 − 3 =
11.11 − 9 =
12.18 − 9 =
13.16 − 7 =
14.14 − 7 =
15.12 − 4 =
16.15 − 8 =

LessonPrint · 1.OA.C.6 · Set 12 · free to copy for classroom use

Answer key — Subtraction Within 20 — Crossing Ten

Set 12. Prints on its own sheet.

  1. 1.4
  2. 2.14
  3. 3.7
  4. 4.4
  5. 5.6
  6. 6.7
  7. 7.8
  8. 8.9
  9. 9.6
  10. 10.9
  11. 11.2
  12. 12.9
  13. 13.9
  14. 14.7
  15. 15.8
  16. 16.7

Last reviewed 2026-09-05. Aligned to 1.OA.C.6 of the Common Core State Standards for mathematics.