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Number Series Worksheet

Logical reasoning lesson 1: Number series · Set 172 · 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? 3, 4, 6, 9, 13, ?
  2. 2.What comes next? 5, 10, 15, 20, 25, ?
  3. 3.What comes next? 18, 22, 26, 30, 34, ?
  4. 4.What comes next? 1, 3, 9, 27, 81, ?
  5. 5.What comes next? 2, 6, 18, 54, 162, ?
  6. 6.What comes next? 5, 13, 7, 15, 9, 17, ?
  7. 7.What comes next? 17, 26, 37, 50, 65, ?
  8. 8.What comes next? 2, 4, 8, 16, 32, ?
  9. 9.What comes next? 5, 10, 20, 40, 80, ?
  10. 10.What comes next? 16, 25, 36, 49, 64, ?
  11. 11.What comes next? 9, 12, 10, 13, 11, 14, ?
  12. 12.What comes next? 20, 23, 22, 25, 24, 27, ?
  13. 13.What comes next? 1, 2, 4, 8, 16, ?
  14. 14.What comes next? 18, 26, 34, 42, 50, ?
  15. 15.What comes next? 6, 12, 7, 13, 8, 14, ?
  16. 16.What comes next? 8, 16, 24, 32, 40, ?
  17. 17.What comes next? 35, 48, 63, 80, 99, ?
  18. 18.What comes next? 15, 23, 31, 39, 47, ?
  19. 19.What comes next? 3, 9, 27, 81, 243, ?
  20. 20.What comes next? 14, 17, 21, 26, 32, ?
  21. 21.What comes next? 4, 8, 16, 32, 64, ?
  22. 22.What comes next? 4, 12, 36, 108, 324, ?
  23. 23.What comes next? 6, 10, 7, 11, 8, 12, ?
  24. 24.What comes next? 1, 4, 9, 16, 25, ?
  25. 25.What comes next? 8, 14, 20, 26, 32, ?
  26. 26.What comes next? 9, 16, 25, 36, 49, ?
  27. 27.What comes next? 17, 23, 29, 35, 41, ?
  28. 28.What comes next? 2, 6, 10, 14, 18, ?
  29. 29.What comes next? 4, 9, 16, 25, 36, ?
  30. 30.What comes next? 2, 5, 4, 7, 6, 9, ?
  31. 31.What comes next? 2, 4, 7, 11, 16, ?
  32. 32.What comes next? 2, 5, 10, 17, 26, ?
  33. 33.What comes next? 7, 14, 21, 28, 35, ?
  34. 34.What comes next? 1, 10, 19, 28, 37, ?
  35. 35.What comes next? 36, 49, 64, 81, 100, ?
  36. 36.What comes next? 37, 50, 65, 82, 101, ?
  37. 37.What comes next? 14, 17, 16, 19, 18, 21, ?
  38. 38.What comes next? 10, 17, 26, 37, 50, ?
  39. 39.What comes next? 1, 5, 9, 13, 17, ?
  40. 40.What comes next? 4, 13, 22, 31, 40, ?

Answer key

  1. 18
  2. 30
  3. 38
  4. 243
  5. 486
  6. 11
  7. 82
  8. 64
  9. 160
  10. 81
  11. 12
  12. 26
  13. 32
  14. 58
  15. 9
  16. 48
  17. 120
  18. 55
  19. 729
  20. 39
  21. 128
  22. 972
  23. 9
  24. 36
  25. 38
  26. 64
  27. 47
  28. 22
  29. 49
  30. 8
  31. 22
  32. 37
  33. 42
  34. 46
  35. 121
  36. 122
  37. 20
  38. 65
  39. 21
  40. 49

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