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Grade 1 Missing numbers — Gentle practice

Missing-number equations show the relationship between operations. Start with accessible examples. Give extra time for thinking and use a visual model whenever helpful.

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Grade 1 Missing numbers — Gentle practice

Name: ________________________   Date: ______________

20 questions

Directions: Name the unknown quantity and read both sides of the equation. Write your answer for each problem.

  1. 10 - ______ = 2
  2. ______ + 3 = 11
  3. ______ + 3 = 8
  4. ______ + 4 = 12
  5. 11 - ______ = 10
  6. ______ + 9 = 12
  7. 9 - ______ = 1
  8. 14 - ______ = 9
  9. ______ + 3 = 4
  10. ______ + 8 = 18
  11. ______ + 3 = 13
  12. 2 - ______ = 1
  13. 15 - ______ = 10
  14. ______ + 6 = 14
  15. 17 - ______ = 9
  16. 8 - ______ = 3
  17. ______ + 6 = 16
  18. ______ + 4 = 14
  19. 9 - ______ = 3
  20. ______ + 7 = 10

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Show answer key (for parents and teachers)
  1. 1. 8
  2. 2. 8
  3. 3. 5
  4. 4. 8
  5. 5. 1
  6. 6. 3
  7. 7. 8
  8. 8. 5
  9. 9. 1
  10. 10. 10
  11. 11. 10
  12. 12. 1
  13. 13. 5
  14. 14. 8
  15. 15. 8
  16. 16. 5
  17. 17. 10
  18. 18. 10
  19. 19. 6
  20. 20. 3

How to help with this skill

First graders use drawings, objects, and number lines to understand small numbers and explain their thinking. Focus on accuracy before speed.

  • Name the unknown quantity and read both sides of the equation.
  • Use the inverse operation to find it.
  • Substitute your result back into the original equation.

Try this: Try a balance-scale drawing to make the equality visible.

Choose a different level

Gentle practiceEveryday practiceStretch your thinking

More Grade 1 practice

AdditionSubtractionNumber patternsPlace valueComparing numbers

Supplementary math practice, not a full curriculum. Review answers with your learner.