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Number Series Worksheet

Logical reasoning lesson 1: Number series · Set 145 · 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? 1, 3, 9, 27, 81, ?
  2. 2.What comes next? 13, 22, 31, 40, 49, ?
  3. 3.What comes next? 0, 3, 8, 15, 24, ?
  4. 4.What comes next? 4, 12, 36, 108, 324, ?
  5. 5.What comes next? 1, 3, 5, 7, 9, ?
  6. 6.What comes next? 9, 16, 25, 36, 49, ?
  7. 7.What comes next? 25, 36, 49, 64, 81, ?
  8. 8.What comes next? 11, 13, 16, 20, 25, ?
  9. 9.What comes next? 12, 15, 19, 24, 30, ?
  10. 10.What comes next? 6, 11, 16, 21, 26, ?
  11. 11.What comes next? 1, 9, 2, 10, 3, 11, ?
  12. 12.What comes next? 4, 9, 16, 25, 36, ?
  13. 13.What comes next? 1, 5, 9, 13, 17, ?
  14. 14.What comes next? 3, 9, 15, 21, 27, ?
  15. 15.What comes next? 1, 6, 4, 9, 7, 12, ?
  16. 16.What comes next? 2, 4, 8, 16, 32, ?
  17. 17.What comes next? 12, 19, 26, 33, 40, ?
  18. 18.What comes next? 4, 8, 16, 32, 64, ?
  19. 19.What comes next? 5, 15, 45, 135, 405, ?
  20. 20.What comes next? 11, 14, 12, 15, 13, 16, ?
  21. 21.What comes next? 3, 9, 4, 10, 5, 11, ?
  22. 22.What comes next? 18, 26, 34, 42, 50, ?
  23. 23.What comes next? 13, 16, 19, 22, 25, ?
  24. 24.What comes next? 12, 15, 18, 21, 24, ?
  25. 25.What comes next? 5, 10, 20, 40, 80, ?
  26. 26.What comes next? 8, 10, 13, 17, 22, ?
  27. 27.What comes next? 8, 15, 24, 35, 48, ?
  28. 28.What comes next? 13, 20, 27, 34, 41, ?
  29. 29.What comes next? 15, 18, 21, 24, 27, ?
  30. 30.What comes next? 2, 6, 18, 54, 162, ?
  31. 31.What comes next? 2, 11, 10, 19, 18, 27, ?
  32. 32.What comes next? 1, 4, 2, 5, 3, 6, ?
  33. 33.What comes next? 1, 10, 19, 28, 37, ?
  34. 34.What comes next? 15, 24, 35, 48, 63, ?
  35. 35.What comes next? 3, 8, 15, 24, 35, ?
  36. 36.What comes next? 19, 22, 21, 24, 23, 26, ?
  37. 37.What comes next? 5, 9, 13, 17, 21, ?
  38. 38.What comes next? 12, 19, 16, 23, 20, 27, ?
  39. 39.What comes next? 14, 18, 22, 26, 30, ?
  40. 40.What comes next? 2, 10, 5, 13, 8, 16, ?

Answer key

  1. 243
  2. 58
  3. 35
  4. 972
  5. 11
  6. 64
  7. 100
  8. 31
  9. 37
  10. 31
  11. 4
  12. 49
  13. 21
  14. 33
  15. 10
  16. 64
  17. 47
  18. 128
  19. 1215
  20. 14
  21. 6
  22. 58
  23. 28
  24. 27
  25. 160
  26. 28
  27. 63
  28. 48
  29. 30
  30. 486
  31. 26
  32. 4
  33. 46
  34. 80
  35. 48
  36. 25
  37. 25
  38. 24
  39. 34
  40. 11

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