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Number Series Worksheet

Logical reasoning lesson 1: Number series · Set 6 · 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? 37, 50, 65, 82, 101, ?
  2. 2.What comes next? 15, 17, 20, 24, 29, ?
  3. 3.What comes next? 8, 17, 15, 24, 22, 31, ?
  4. 4.What comes next? 19, 26, 33, 40, 47, ?
  5. 5.What comes next? 15, 19, 17, 21, 19, 23, ?
  6. 6.What comes next? 17, 21, 20, 24, 23, 27, ?
  7. 7.What comes next? 12, 18, 24, 30, 36, ?
  8. 8.What comes next? 1, 2, 4, 8, 16, ?
  9. 9.What comes next? 12, 19, 26, 33, 40, ?
  10. 10.What comes next? 17, 20, 18, 21, 19, 22, ?
  11. 11.What comes next? 2, 6, 4, 8, 6, 10, ?
  12. 12.What comes next? 1, 3, 6, 10, 15, ?
  13. 13.What comes next? 2, 3, 5, 8, 12, ?
  14. 14.What comes next? 26, 37, 50, 65, 82, ?
  15. 15.What comes next? 5, 15, 45, 135, 405, ?
  16. 16.What comes next? 9, 15, 10, 16, 11, 17, ?
  17. 17.What comes next? 4, 6, 8, 10, 12, ?
  18. 18.What comes next? 1, 3, 9, 27, 81, ?
  19. 19.What comes next? 10, 11, 13, 16, 20, ?
  20. 20.What comes next? 5, 11, 7, 13, 9, 15, ?
  21. 21.What comes next? 7, 9, 11, 13, 15, ?
  22. 22.What comes next? 3, 8, 5, 10, 7, 12, ?
  23. 23.What comes next? 13, 15, 17, 19, 21, ?
  24. 24.What comes next? 9, 11, 14, 18, 23, ?
  25. 25.What comes next? 4, 8, 16, 32, 64, ?
  26. 26.What comes next? 11, 14, 18, 23, 29, ?
  27. 27.What comes next? 0, 3, 8, 15, 24, ?
  28. 28.What comes next? 15, 19, 24, 30, 37, ?
  29. 29.What comes next? 5, 10, 20, 40, 80, ?
  30. 30.What comes next? 8, 9, 11, 14, 18, ?
  31. 31.What comes next? 5, 9, 6, 10, 7, 11, ?
  32. 32.What comes next? 2, 4, 8, 16, 32, ?
  33. 33.What comes next? 14, 21, 19, 26, 24, 31, ?
  34. 34.What comes next? 4, 12, 36, 108, 324, ?
  35. 35.What comes next? 17, 24, 31, 38, 45, ?
  36. 36.What comes next? 20, 27, 34, 41, 48, ?
  37. 37.What comes next? 2, 6, 18, 54, 162, ?
  38. 38.What comes next? 3, 6, 12, 24, 48, ?
  39. 39.What comes next? 17, 26, 37, 50, 65, ?
  40. 40.What comes next? 4, 9, 6, 11, 8, 13, ?

Answer key

  1. 122
  2. 35
  3. 29
  4. 54
  5. 21
  6. 26
  7. 42
  8. 32
  9. 47
  10. 20
  11. 8
  12. 21
  13. 17
  14. 101
  15. 1215
  16. 12
  17. 14
  18. 243
  19. 25
  20. 11
  21. 17
  22. 9
  23. 23
  24. 29
  25. 128
  26. 36
  27. 35
  28. 45
  29. 160
  30. 23
  31. 8
  32. 64
  33. 29
  34. 972
  35. 52
  36. 55
  37. 486
  38. 96
  39. 82
  40. 10

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