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Grade 5 Missing numbers — Stretch your thinking

Missing-number equations show the relationship between operations. Try the more demanding numbers. Estimate first, then explain your method and verify.

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Grade 5 Missing numbers — Stretch your thinking

Name: ________________________   Date: ______________

20 questions

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

  1. 218,148 - ______ = 168,673
  2. ______ + 99,143 = 156,038
  3. ______ + 83,371 = 100,107
  4. 137,142 - ______ = 35,345
  5. ______ + 65,591 = 84,098
  6. ______ + 74,321 = 182,118
  7. 79,779 - ______ = 79,736
  8. 187,539 - ______ = 68,617
  9. 203,337 - ______ = 134,401
  10. ______ + 105,079 = 125,235
  11. ______ + 162,614 = 283,189
  12. 141,613 - ______ = 61,629
  13. 228,837 - ______ = 123,995
  14. 216,780 - ______ = 168,045
  15. 206,006 - ______ = 121,382
  16. 213,161 - ______ = 132,207
  17. 206,769 - ______ = 133,974
  18. ______ + 13,108 = 84,662
  19. ______ + 34,765 = 85,303
  20. 178,666 - ______ = 162,255

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Show answer key (for parents and teachers)
  1. 1. 49,475
  2. 2. 56,895
  3. 3. 16,736
  4. 4. 101,797
  5. 5. 18,507
  6. 6. 107,797
  7. 7. 43
  8. 8. 118,922
  9. 9. 68,936
  10. 10. 20,156
  11. 11. 120,575
  12. 12. 79,984
  13. 13. 104,842
  14. 14. 48,735
  15. 15. 84,624
  16. 16. 80,954
  17. 17. 72,795
  18. 18. 71,554
  19. 19. 50,538
  20. 20. 16,411

How to help with this skill

Fifth graders strengthen work with whole numbers, fractions, decimals, percentages and mathematical expressions.

  • 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

More Grade 5 practice

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