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Number Series Worksheet

Logical reasoning lesson 1: Number series · Set 320 · 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? 16, 25, 36, 49, 64, ?
  2. 2.What comes next? 1, 6, 3, 8, 5, 10, ?
  3. 3.What comes next? 3, 6, 12, 24, 48, ?
  4. 4.What comes next? 17, 20, 18, 21, 19, 22, ?
  5. 5.What comes next? 19, 27, 20, 28, 21, 29, ?
  6. 6.What comes next? 11, 14, 18, 23, 29, ?
  7. 7.What comes next? 10, 16, 22, 28, 34, ?
  8. 8.What comes next? 10, 12, 14, 16, 18, ?
  9. 9.What comes next? 16, 21, 26, 31, 36, ?
  10. 10.What comes next? 36, 49, 64, 81, 100, ?
  11. 11.What comes next? 5, 14, 23, 32, 41, ?
  12. 12.What comes next? 10, 12, 15, 19, 24, ?
  13. 13.What comes next? 20, 23, 22, 25, 24, 27, ?
  14. 14.What comes next? 6, 7, 9, 12, 16, ?
  15. 15.What comes next? 9, 11, 13, 15, 17, ?
  16. 16.What comes next? 12, 16, 21, 27, 34, ?
  17. 17.What comes next? 6, 14, 13, 21, 20, 28, ?
  18. 18.What comes next? 2, 4, 8, 16, 32, ?
  19. 19.What comes next? 14, 17, 21, 26, 32, ?
  20. 20.What comes next? 10, 13, 16, 19, 22, ?
  21. 21.What comes next? 17, 20, 23, 26, 29, ?
  22. 22.What comes next? 4, 9, 16, 25, 36, ?
  23. 23.What comes next? 11, 15, 20, 26, 33, ?
  24. 24.What comes next? 24, 35, 48, 63, 80, ?
  25. 25.What comes next? 4, 8, 16, 32, 64, ?
  26. 26.What comes next? 2, 6, 10, 14, 18, ?
  27. 27.What comes next? 8, 11, 10, 13, 12, 15, ?
  28. 28.What comes next? 2, 4, 7, 11, 16, ?
  29. 29.What comes next? 12, 16, 20, 24, 28, ?
  30. 30.What comes next? 8, 11, 15, 20, 26, ?
  31. 31.What comes next? 5, 15, 45, 135, 405, ?
  32. 32.What comes next? 2, 7, 12, 17, 22, ?
  33. 33.What comes next? 1, 3, 9, 27, 81, ?
  34. 34.What comes next? 9, 16, 25, 36, 49, ?
  35. 35.What comes next? 37, 50, 65, 82, 101, ?
  36. 36.What comes next? 12, 13, 15, 18, 22, ?
  37. 37.What comes next? 9, 17, 10, 18, 11, 19, ?
  38. 38.What comes next? 15, 18, 22, 27, 33, ?
  39. 39.What comes next? 15, 24, 35, 48, 63, ?
  40. 40.What comes next? 0, 3, 8, 15, 24, ?

Answer key

  1. 81
  2. 7
  3. 96
  4. 20
  5. 22
  6. 36
  7. 40
  8. 20
  9. 41
  10. 121
  11. 50
  12. 30
  13. 26
  14. 21
  15. 19
  16. 42
  17. 27
  18. 64
  19. 39
  20. 25
  21. 32
  22. 49
  23. 41
  24. 99
  25. 128
  26. 22
  27. 14
  28. 22
  29. 32
  30. 33
  31. 1215
  32. 27
  33. 243
  34. 64
  35. 122
  36. 27
  37. 12
  38. 40
  39. 80
  40. 35

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