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. 20 − 6 = ?
  2. 20 − 8 = ?
  3. 19 − 18 = ?
  4. 14 − 2 = ?
  5. 8 − 5 = ?
  6. 19 − 1 = ?
  7. 17 − 7 = ?
  8. 15 − 9 = ?
  9. 11 − 3 = ?
  10. 17 − 12 = ?
  11. 16 − 10 = ?
  12. 20 − 3 = ?
Show sample answers
  1. 20 − 6 = ?14
  2. 20 − 8 = ?12
  3. 19 − 18 = ?1
  4. 14 − 2 = ?12
  5. 8 − 5 = ?3
  6. 19 − 1 = ?18
  7. 17 − 7 = ?10
  8. 15 − 9 = ?6
  9. 11 − 3 = ?8
  10. 17 − 12 = ?5
  11. 16 − 10 = ?6
  12. 20 − 3 = ?17