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Grade 1 · Math · Challenge

Free Subtraction Within 20 worksheet - version 14

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

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Subtraction Within 20

Grade 1 · Stretch challenge · 14 questions · Version PG-BW48HI-EJCW

Free printable
1.13 - 2 =
2.14 - 14 =
3.5 - 5 =
4.9 - 5 =
5.3 - 2 =
6.15 - 11 =
7.9 - 1 =
8.4 - 1 =
9.5 - 4 =
10.6 - 4 =
11.8 - 8 =
12.5 - 0 =
13.14 - 5 =
14.6 - 6 =
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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 14
  1. 13 - 2 =11
  2. 14 - 14 =0
  3. 5 - 5 =0
  4. 9 - 5 =4
  5. 3 - 2 =1
  6. 15 - 11 =4
  7. 9 - 1 =8
  8. 4 - 1 =3
  9. 5 - 4 =1
  10. 6 - 4 =2
  11. 8 - 8 =0
  12. 5 - 0 =5
  13. 14 - 5 =9
  14. 6 - 6 =0

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.