Subtraction within 20

Practice subtraction from numbers within 20, with non-negative answers.

Ready-to-use practice

12 subtraction within 20 questions

These questions are already present in the page HTML and use the same difficulty rules as the interactive practice tool.

  1. 18 − 1 = ?
  2. 15 − 8 = ?
  3. 18 − 2 = ?
  4. 10 − 1 = ?
  5. 15 − 6 = ?
  6. 13 − 1 = ?
  7. 16 − 7 = ?
  8. 20 − 2 = ?
  9. 5 − 2 = ?
  10. 15 − 11 = ?
  11. 5 − 3 = ?
  12. 19 − 3 = ?
Show sample answers
  1. 18 − 1 = ?17
  2. 15 − 8 = ?7
  3. 18 − 2 = ?16
  4. 10 − 1 = ?9
  5. 15 − 6 = ?9
  6. 13 − 1 = ?12
  7. 16 − 7 = ?9
  8. 20 − 2 = ?18
  9. 5 − 2 = ?3
  10. 15 − 11 = ?4
  11. 5 − 3 = ?2
  12. 19 − 3 = ?16