Whole number skills: Missing numbers

Use the relationship between addition and subtraction to find the missing number.

Ready-to-use practice

12 whole number skills: missing numbers questions

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

  1. 19 − □ = 9
  2. 17 − □ = 15
  3. □ + 1 = 19
  4. □ + 15 = 19
  5. □ − 4 = 16
  6. □ − 11 = 6
  7. □ + 11 = 12
  8. 19 − □ = 3
  9. 7 − □ = 6
  10. □ − 6 = 5
  11. □ + 2 = 3
  12. 4 + □ = 17
Show sample answers
  1. 19 − □ = 910
  2. 17 − □ = 152
  3. □ + 1 = 1918
  4. □ + 15 = 194
  5. □ − 4 = 1620
  6. □ − 11 = 617
  7. □ + 11 = 121
  8. 19 − □ = 316
  9. 7 − □ = 61
  10. □ − 6 = 511
  11. □ + 2 = 31
  12. 4 + □ = 1713