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Number Series Worksheet

Logical reasoning lesson 1: Number series · Set 301 · 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? 6, 10, 14, 18, 22, ?
  2. 2.What comes next? 13, 15, 18, 22, 27, ?
  3. 3.What comes next? 10, 17, 26, 37, 50, ?
  4. 4.What comes next? 12, 13, 15, 18, 22, ?
  5. 5.What comes next? 4, 9, 7, 12, 10, 15, ?
  6. 6.What comes next? 5, 10, 17, 26, 37, ?
  7. 7.What comes next? 9, 16, 25, 36, 49, ?
  8. 8.What comes next? 2, 4, 8, 16, 32, ?
  9. 9.What comes next? 2, 6, 18, 54, 162, ?
  10. 10.What comes next? 1, 2, 4, 7, 11, ?
  11. 11.What comes next? 25, 36, 49, 64, 81, ?
  12. 12.What comes next? 24, 35, 48, 63, 80, ?
  13. 13.What comes next? 14, 18, 17, 21, 20, 24, ?
  14. 14.What comes next? 5, 15, 45, 135, 405, ?
  15. 15.What comes next? 17, 21, 25, 29, 33, ?
  16. 16.What comes next? 15, 23, 31, 39, 47, ?
  17. 17.What comes next? 3, 6, 12, 24, 48, ?
  18. 18.What comes next? 11, 14, 17, 20, 23, ?
  19. 19.What comes next? 14, 23, 32, 41, 50, ?
  20. 20.What comes next? 3, 9, 5, 11, 7, 13, ?
  21. 21.What comes next? 5, 9, 13, 17, 21, ?
  22. 22.What comes next? 2, 11, 10, 19, 18, 27, ?
  23. 23.What comes next? 7, 8, 10, 13, 17, ?
  24. 24.What comes next? 8, 15, 24, 35, 48, ?
  25. 25.What comes next? 9, 15, 21, 27, 33, ?
  26. 26.What comes next? 19, 26, 21, 28, 23, 30, ?
  27. 27.What comes next? 3, 9, 27, 81, 243, ?
  28. 28.What comes next? 4, 8, 16, 32, 64, ?
  29. 29.What comes next? 1, 2, 4, 8, 16, ?
  30. 30.What comes next? 18, 24, 30, 36, 42, ?
  31. 31.What comes next? 1, 3, 9, 27, 81, ?
  32. 32.What comes next? 7, 12, 9, 14, 11, 16, ?
  33. 33.What comes next? 3, 7, 11, 15, 19, ?
  34. 34.What comes next? 2, 6, 11, 17, 24, ?
  35. 35.What comes next? 4, 9, 6, 11, 8, 13, ?
  36. 36.What comes next? 36, 49, 64, 81, 100, ?
  37. 37.What comes next? 26, 37, 50, 65, 82, ?
  38. 38.What comes next? 5, 10, 20, 40, 80, ?
  39. 39.What comes next? 4, 9, 16, 25, 36, ?
  40. 40.What comes next? 6, 7, 9, 12, 16, ?

Answer key

  1. 26
  2. 33
  3. 65
  4. 27
  5. 13
  6. 50
  7. 64
  8. 64
  9. 486
  10. 16
  11. 100
  12. 99
  13. 23
  14. 1215
  15. 37
  16. 55
  17. 96
  18. 26
  19. 59
  20. 9
  21. 25
  22. 26
  23. 22
  24. 63
  25. 39
  26. 25
  27. 729
  28. 128
  29. 32
  30. 48
  31. 243
  32. 13
  33. 23
  34. 32
  35. 10
  36. 121
  37. 101
  38. 160
  39. 49
  40. 21

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