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Math · K–2 · Free, no account needed

Missing Numbers

Look at the numbers on both sides of the gap. Count by ones, or by twos in challenge mode, and type the missing number.

Your practice set

Numbers 1-20 | standard | 12 questions

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Download an A4 PDF, or use your browser to print on A4 or Letter paper. Your worksheet contains the current 12 questions with blank answer spaces.

Missing Numbers

Numbers 1-20 | standard | 12 questions

Name _________________________   Date _______________

  1. 12, _____ , 14, 15, 16
  2. 8, 9, 10, _____ , 12
  3. 15, _____ , 17, 18, 19
  4. 5, _____ , 7, 8, 9
  5. 16, 17, 18, 19, _____
  6. 12, 13, 14, _____ , 16
  7. 2, 3, 4, 5, _____
  8. 6, 7, _____ , 9, 10
  9. 5, 6, 7, _____ , 9
  10. _____ , 5, 6, 7, 8
  11. 8, 9, _____ , 11, 12
  12. _____ , 14, 15, 16, 17

Missing Numbers · Answer key

  1. 13
  2. 11
  3. 16
  4. 6
  5. 20
  6. 15
  7. 6
  8. 8
  9. 8
  10. 4
  11. 10
  12. 13