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Number Series Worksheet

Logical reasoning lesson 1: Number series · Set 146 · 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? 5, 7, 10, 14, 19, ?
  2. 2.What comes next? 25, 36, 49, 64, 81, ?
  3. 3.What comes next? 20, 22, 24, 26, 28, ?
  4. 4.What comes next? 1, 3, 9, 27, 81, ?
  5. 5.What comes next? 9, 16, 25, 36, 49, ?
  6. 6.What comes next? 9, 16, 23, 30, 37, ?
  7. 7.What comes next? 10, 12, 15, 19, 24, ?
  8. 8.What comes next? 3, 9, 27, 81, 243, ?
  9. 9.What comes next? 13, 14, 16, 19, 23, ?
  10. 10.What comes next? 17, 22, 20, 25, 23, 28, ?
  11. 11.What comes next? 12, 15, 13, 16, 14, 17, ?
  12. 12.What comes next? 2, 7, 3, 8, 4, 9, ?
  13. 13.What comes next? 6, 15, 24, 33, 42, ?
  14. 14.What comes next? 1, 7, 6, 12, 11, 17, ?
  15. 15.What comes next? 10, 12, 14, 16, 18, ?
  16. 16.What comes next? 8, 15, 14, 21, 20, 27, ?
  17. 17.What comes next? 6, 14, 13, 21, 20, 28, ?
  18. 18.What comes next? 35, 48, 63, 80, 99, ?
  19. 19.What comes next? 7, 10, 14, 19, 25, ?
  20. 20.What comes next? 6, 13, 7, 14, 8, 15, ?
  21. 21.What comes next? 9, 10, 12, 15, 19, ?
  22. 22.What comes next? 36, 49, 64, 81, 100, ?
  23. 23.What comes next? 24, 35, 48, 63, 80, ?
  24. 24.What comes next? 11, 18, 25, 32, 39, ?
  25. 25.What comes next? 6, 12, 11, 17, 16, 22, ?
  26. 26.What comes next? 8, 11, 15, 20, 26, ?
  27. 27.What comes next? 4, 6, 8, 10, 12, ?
  28. 28.What comes next? 20, 29, 24, 33, 28, 37, ?
  29. 29.What comes next? 9, 18, 16, 25, 23, 32, ?
  30. 30.What comes next? 6, 9, 12, 15, 18, ?
  31. 31.What comes next? 2, 5, 4, 7, 6, 9, ?
  32. 32.What comes next? 4, 10, 9, 15, 14, 20, ?
  33. 33.What comes next? 18, 23, 22, 27, 26, 31, ?
  34. 34.What comes next? 16, 25, 36, 49, 64, ?
  35. 35.What comes next? 5, 15, 45, 135, 405, ?
  36. 36.What comes next? 3, 6, 5, 8, 7, 10, ?
  37. 37.What comes next? 14, 17, 16, 19, 18, 21, ?
  38. 38.What comes next? 2, 6, 18, 54, 162, ?
  39. 39.What comes next? 1, 5, 10, 16, 23, ?
  40. 40.What comes next? 6, 11, 8, 13, 10, 15, ?

Answer key

  1. 25
  2. 100
  3. 30
  4. 243
  5. 64
  6. 44
  7. 30
  8. 729
  9. 28
  10. 26
  11. 15
  12. 5
  13. 51
  14. 16
  15. 20
  16. 26
  17. 27
  18. 120
  19. 32
  20. 9
  21. 24
  22. 121
  23. 99
  24. 46
  25. 21
  26. 33
  27. 14
  28. 32
  29. 30
  30. 21
  31. 8
  32. 19
  33. 30
  34. 81
  35. 1215
  36. 9
  37. 20
  38. 486
  39. 31
  40. 12

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