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Celeste International School

Grade 2 · Worksheet

More addition & subtraction

Complements

Name: ______________________________Date: ______________Score: ______ / 20
  1. 1.

    What is the complement of 35 to make 100?

    1. A55
    2. B65
    3. C75
  2. 2.

    35 + ? = 100. What is the missing number?

  3. 3.

    53 + ? = 100. What is the missing number?

  4. 4.

    77 + ? = 100. What is the missing number?

  5. 5.

    81 + ? = 100. What is the missing number?

  6. 6.

    8 + ? = 100. What is the missing number?

  7. 7.

    Which pair are complements of 100 (they add to 100)?

    1. A30 + 60
    2. B40 + 70
    3. C30 + 70
  8. 8.

    350 + ? = 1000. What is the missing number?

  9. 9.

    530 + ? = 1000. What is the missing number?

  10. 10.

    770 + ? = 1000. What is the missing number?

  11. 11.

    810 + ? = 1000. What is the missing number?

  12. 12.

    80 + ? = 1000. What is the missing number?

  13. 13.

    880 + ? = 1000. What is the missing number?

  14. 14.

    470 + ? = 1000. What is the missing number?

  15. 15.

    Which pair are complements of 1000?

    1. A500 + 500
    2. B500 + 400
    3. C600 + 500
  16. 16.

    340 + ? = 570. What is the missing number?

  17. 17.

    750 + ? = 900. What is the missing number?

  18. 18.

    560 + ? = 850. What is the missing number?

  19. 19.

    370 + ? = 720. What is the missing number?

  20. 20.

    670 + ? = 810. What is the missing number?

Celeste International School

Answer key

More addition & subtraction — Complements

  1. 1.B. 65
  2. 2.65
  3. 3.47
  4. 4.23
  5. 5.19
  6. 6.92
  7. 7.C. 30 + 70
  8. 8.650
  9. 9.470
  10. 10.230
  11. 11.190
  12. 12.920
  13. 13.120
  14. 14.530
  15. 15.A. 500 + 500
  16. 16.230
  17. 17.150
  18. 18.290
  19. 19.350
  20. 20.140