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Number Series Worksheet

Logical reasoning lesson 1: Number series · Set 3 · 40 questions
TalentJR

How to think it through (Find the jump): Write the jump between each pair of neighbours (+3, +3, +3 … or × 2, × 2 …). If the jumps are not equal, look at the jumps themselves: do they grow by 1, take turns, or are the numbers squares (1, 4, 9, 16 …)? Use the same rule once more to get the next number.

NameDateTime takenScore ___ / 40
  1. 1.What comes next? 16, 22, 20, 26, 24, 30, ?
  2. 2.What comes next? 5, 15, 45, 135, 405, ?
  3. 3.What comes next? 12, 15, 19, 24, 30, ?
  4. 4.What comes next? 6, 7, 9, 12, 16, ?
  5. 5.What comes next? 1, 2, 4, 8, 16, ?
  6. 6.What comes next? 3, 5, 8, 12, 17, ?
  7. 7.What comes next? 13, 15, 18, 22, 27, ?
  8. 8.What comes next? 4, 9, 16, 25, 36, ?
  9. 9.What comes next? 14, 18, 15, 19, 16, 20, ?
  10. 10.What comes next? 36, 49, 64, 81, 100, ?
  11. 11.What comes next? 4, 8, 16, 32, 64, ?
  12. 12.What comes next? 5, 9, 8, 12, 11, 15, ?
  13. 13.What comes next? 14, 18, 22, 26, 30, ?
  14. 14.What comes next? 1, 3, 9, 27, 81, ?
  15. 15.What comes next? 11, 15, 12, 16, 13, 17, ?
  16. 16.What comes next? 1, 3, 6, 10, 15, ?
  17. 17.What comes next? 20, 25, 23, 28, 26, 31, ?
  18. 18.What comes next? 18, 21, 24, 27, 30, ?
  19. 19.What comes next? 3, 4, 6, 9, 13, ?
  20. 20.What comes next? 10, 13, 17, 22, 28, ?
  21. 21.What comes next? 3, 10, 17, 24, 31, ?
  22. 22.What comes next? 4, 10, 16, 22, 28, ?
  23. 23.What comes next? 5, 6, 8, 11, 15, ?
  24. 24.What comes next? 14, 16, 18, 20, 22, ?
  25. 25.What comes next? 37, 50, 65, 82, 101, ?
  26. 26.What comes next? 18, 23, 28, 33, 38, ?
  27. 27.What comes next? 3, 9, 27, 81, 243, ?
  28. 28.What comes next? 5, 10, 20, 40, 80, ?
  29. 29.What comes next? 9, 13, 18, 24, 31, ?
  30. 30.What comes next? 17, 25, 33, 41, 49, ?
  31. 31.What comes next? 13, 22, 31, 40, 49, ?
  32. 32.What comes next? 0, 3, 8, 15, 24, ?
  33. 33.What comes next? 4, 6, 8, 10, 12, ?
  34. 34.What comes next? 35, 48, 63, 80, 99, ?
  35. 35.What comes next? 1, 8, 15, 22, 29, ?
  36. 36.What comes next? 6, 10, 15, 21, 28, ?
  37. 37.What comes next? 4, 11, 6, 13, 8, 15, ?
  38. 38.What comes next? 2, 6, 18, 54, 162, ?
  39. 39.What comes next? 4, 12, 20, 28, 36, ?
  40. 40.What comes next? 7, 15, 11, 19, 15, 23, ?

Answer key

  1. 28
  2. 1215
  3. 37
  4. 21
  5. 32
  6. 23
  7. 33
  8. 49
  9. 17
  10. 121
  11. 128
  12. 14
  13. 34
  14. 243
  15. 14
  16. 21
  17. 29
  18. 33
  19. 18
  20. 35
  21. 38
  22. 34
  23. 20
  24. 24
  25. 122
  26. 43
  27. 729
  28. 160
  29. 39
  30. 57
  31. 58
  32. 35
  33. 14
  34. 120
  35. 36
  36. 36
  37. 10
  38. 486
  39. 44
  40. 19

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