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Number Series Worksheet

Logical reasoning lesson 1: Number series · Set 34 · 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? 7, 9, 12, 16, 21, ?
  2. 2.What comes next? 8, 11, 14, 17, 20, ?
  3. 3.What comes next? 3, 9, 27, 81, 243, ?
  4. 4.What comes next? 4, 9, 14, 19, 24, ?
  5. 5.What comes next? 17, 26, 37, 50, 65, ?
  6. 6.What comes next? 19, 26, 33, 40, 47, ?
  7. 7.What comes next? 3, 6, 12, 24, 48, ?
  8. 8.What comes next? 6, 8, 11, 15, 20, ?
  9. 9.What comes next? 8, 10, 13, 17, 22, ?
  10. 10.What comes next? 4, 8, 16, 32, 64, ?
  11. 11.What comes next? 17, 24, 23, 30, 29, 36, ?
  12. 12.What comes next? 12, 14, 17, 21, 26, ?
  13. 13.What comes next? 5, 10, 15, 20, 25, ?
  14. 14.What comes next? 1, 5, 9, 13, 17, ?
  15. 15.What comes next? 10, 16, 22, 28, 34, ?
  16. 16.What comes next? 1, 2, 4, 7, 11, ?
  17. 17.What comes next? 37, 50, 65, 82, 101, ?
  18. 18.What comes next? 5, 15, 45, 135, 405, ?
  19. 19.What comes next? 14, 18, 16, 20, 18, 22, ?
  20. 20.What comes next? 4, 12, 36, 108, 324, ?
  21. 21.What comes next? 13, 17, 22, 28, 35, ?
  22. 22.What comes next? 4, 11, 18, 25, 32, ?
  23. 23.What comes next? 2, 7, 12, 17, 22, ?
  24. 24.What comes next? 15, 22, 29, 36, 43, ?
  25. 25.What comes next? 9, 18, 15, 24, 21, 30, ?
  26. 26.What comes next? 0, 3, 8, 15, 24, ?
  27. 27.What comes next? 18, 21, 24, 27, 30, ?
  28. 28.What comes next? 14, 21, 20, 27, 26, 33, ?
  29. 29.What comes next? 1, 3, 9, 27, 81, ?
  30. 30.What comes next? 16, 25, 36, 49, 64, ?
  31. 31.What comes next? 5, 10, 20, 40, 80, ?
  32. 32.What comes next? 1, 4, 9, 16, 25, ?
  33. 33.What comes next? 7, 8, 10, 13, 17, ?
  34. 34.What comes next? 6, 9, 8, 11, 10, 13, ?
  35. 35.What comes next? 36, 49, 64, 81, 100, ?
  36. 36.What comes next? 2, 5, 10, 17, 26, ?
  37. 37.What comes next? 14, 18, 23, 29, 36, ?
  38. 38.What comes next? 11, 14, 17, 20, 23, ?
  39. 39.What comes next? 3, 8, 15, 24, 35, ?
  40. 40.What comes next? 17, 19, 21, 23, 25, ?

Answer key

  1. 27
  2. 23
  3. 729
  4. 29
  5. 82
  6. 54
  7. 96
  8. 26
  9. 28
  10. 128
  11. 35
  12. 32
  13. 30
  14. 21
  15. 40
  16. 16
  17. 122
  18. 1215
  19. 20
  20. 972
  21. 43
  22. 39
  23. 27
  24. 50
  25. 27
  26. 35
  27. 33
  28. 32
  29. 243
  30. 81
  31. 160
  32. 36
  33. 22
  34. 12
  35. 121
  36. 37
  37. 44
  38. 26
  39. 48
  40. 27

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