PencilGo
Sign in

Grade 1 · Math · On Level

Free Subtraction Within 20 worksheet - version 5

Build subtraction fluency with numbers through 20. This printable version includes 14 grade-appropriate questions and a separate answer sheet.

Download free PDF

Subtraction Within 20

Grade 1 · On-level practice · 14 questions · Version PG-K00QLU-IB6W

Free printable
1.8 - 6 =
2.14 - 8 =
3.18 - 0 =
4.17 - 4 =
5.17 - 6 =
6.4 - 1 =
7.6 - 3 =
8.1 - 0 =
9.15 - 4 =
10.16 - 9 =
11.18 - 15 =
12.11 - 4 =
13.4 - 3 =
14.16 - 0 =
Worksheet PDFAnswer keyCustomize

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 5
  1. 8 - 6 =2
  2. 14 - 8 =6
  3. 18 - 0 =18
  4. 17 - 4 =13
  5. 17 - 6 =11
  6. 4 - 1 =3
  7. 6 - 3 =3
  8. 1 - 0 =1
  9. 15 - 4 =11
  10. 16 - 9 =7
  11. 18 - 15 =3
  12. 11 - 4 =7
  13. 4 - 3 =1
  14. 16 - 0 =16

Worked example

16 - 7 = 9. Break 7 into 6 and 1: 16 - 6 - 1 = 9.

Common mistake

Switching the order of the numbers because subtraction is not commutative.

Helpful hint

Count back to 10, then subtract what remains.