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Number Series Worksheet

Logical reasoning lesson 1: Number series · Set 118 · 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? 10, 17, 26, 37, 50, ?
  2. 2.What comes next? 20, 23, 26, 29, 32, ?
  3. 3.What comes next? 12, 15, 18, 21, 24, ?
  4. 4.What comes next? 2, 4, 8, 16, 32, ?
  5. 5.What comes next? 5, 10, 20, 40, 80, ?
  6. 6.What comes next? 10, 14, 18, 22, 26, ?
  7. 7.What comes next? 25, 36, 49, 64, 81, ?
  8. 8.What comes next? 12, 13, 15, 18, 22, ?
  9. 9.What comes next? 19, 21, 23, 25, 27, ?
  10. 10.What comes next? 4, 11, 18, 25, 32, ?
  11. 11.What comes next? 1, 2, 4, 7, 11, ?
  12. 12.What comes next? 1, 3, 9, 27, 81, ?
  13. 13.What comes next? 7, 8, 10, 13, 17, ?
  14. 14.What comes next? 12, 17, 13, 18, 14, 19, ?
  15. 15.What comes next? 2, 5, 10, 17, 26, ?
  16. 16.What comes next? 11, 16, 13, 18, 15, 20, ?
  17. 17.What comes next? 1, 4, 9, 16, 25, ?
  18. 18.What comes next? 7, 16, 25, 34, 43, ?
  19. 19.What comes next? 20, 26, 25, 31, 30, 36, ?
  20. 20.What comes next? 12, 19, 26, 33, 40, ?
  21. 21.What comes next? 10, 12, 14, 16, 18, ?
  22. 22.What comes next? 9, 13, 18, 24, 31, ?
  23. 23.What comes next? 3, 5, 8, 12, 17, ?
  24. 24.What comes next? 4, 8, 16, 32, 64, ?
  25. 25.What comes next? 3, 9, 27, 81, 243, ?
  26. 26.What comes next? 35, 48, 63, 80, 99, ?
  27. 27.What comes next? 18, 22, 26, 30, 34, ?
  28. 28.What comes next? 2, 6, 11, 17, 24, ?
  29. 29.What comes next? 16, 21, 26, 31, 36, ?
  30. 30.What comes next? 16, 25, 36, 49, 64, ?
  31. 31.What comes next? 9, 16, 25, 36, 49, ?
  32. 32.What comes next? 37, 50, 65, 82, 101, ?
  33. 33.What comes next? 8, 11, 10, 13, 12, 15, ?
  34. 34.What comes next? 36, 49, 64, 81, 100, ?
  35. 35.What comes next? 14, 20, 19, 25, 24, 30, ?
  36. 36.What comes next? 2, 6, 10, 14, 18, ?
  37. 37.What comes next? 2, 3, 5, 8, 12, ?
  38. 38.What comes next? 4, 7, 11, 16, 22, ?
  39. 39.What comes next? 26, 37, 50, 65, 82, ?
  40. 40.What comes next? 11, 12, 14, 17, 21, ?

Answer key

  1. 65
  2. 35
  3. 27
  4. 64
  5. 160
  6. 30
  7. 100
  8. 27
  9. 29
  10. 39
  11. 16
  12. 243
  13. 22
  14. 15
  15. 37
  16. 17
  17. 36
  18. 52
  19. 35
  20. 47
  21. 20
  22. 39
  23. 23
  24. 128
  25. 729
  26. 120
  27. 38
  28. 32
  29. 41
  30. 81
  31. 64
  32. 122
  33. 14
  34. 121
  35. 29
  36. 22
  37. 17
  38. 29
  39. 101
  40. 26

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