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Find the sum of a series

Grade 11 math · Fieldbook Learning

Name ______________________ Date __________

Work out each term and add them.

  1. Find the sum of 2k − 1 for k = 1, 2, 3, …, 9.
  2. Find the sum of −3k + 5 for k = 1, 2, 3, …, 9.
  3. Find the sum of 2k − 6 for k = 1, 2, 3, …, 6.
  4. Find the sum of k − 6 for k = 1, 2, 3, …, 6.
  5. Find the sum of −2k − 6 for k = 1, 2, 3, …, 7.
  6. Find the sum of k² + 6 for k = 1, 2, 3, …, 5.
  7. Find the sum of 2k for k = 1, 2, 3, …, 6.
  8. Find the sum of k² + 6 for k = 1, 2, 3, …, 8.
  9. Find the sum of k + 3 for k = 1, 2, 3, …, 5.
  10. Find the sum of k² − 2 for k = 1, 2, 3, …, 5.
  11. Find the sum of −4k − 2 for k = 1, 2, 3, …, 5.
  12. Find the sum of 4k − 6 for k = 1, 2, 3, …, 8.
  13. Find the sum of k² + 4 for k = 1, 2, 3, …, 9.
  14. Find the sum of 3k + 6 for k = 1, 2, 3, …, 7.
  15. Find the sum of k² + 4 for k = 1, 2, 3, …, 4.
  16. Find the sum of k² + 1 for k = 1, 2, 3, …, 4.
  17. Find the sum of k − 4 for k = 1, 2, 3, …, 5.
  18. Find the sum of k² + 2 for k = 1, 2, 3, …, 6.
  19. Find the sum of −2k − 1 for k = 1, 2, 3, …, 7.
  20. Find the sum of k² − 4 for k = 1, 2, 3, …, 4.
More free practice: fieldbooklearning.com/practice/grade-11/sigma-notation-sums/

Play it as a quiz game

14 of these questions as multiple choice, with near-miss wrong answers, ready for Kahoot or Blooket.

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Answer key: Find the sum of a series

  1. 81
  2. -90
  3. 6
  4. -15
  5. -98
  6. 85
  7. 42
  8. 252
  9. 30
  10. 45
  11. -70
  12. 96
  13. 321
  14. 126
  15. 46
  16. 34
  17. -5
  18. 103
  19. -63
  20. 14