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Number Series Worksheet

Logical reasoning lesson 1: Number series · Set 177 · 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? 9, 13, 18, 24, 31, ?
  2. 2.What comes next? 5, 7, 9, 11, 13, ?
  3. 3.What comes next? 5, 10, 20, 40, 80, ?
  4. 4.What comes next? 5, 10, 17, 26, 37, ?
  5. 5.What comes next? 4, 12, 20, 28, 36, ?
  6. 6.What comes next? 6, 10, 14, 18, 22, ?
  7. 7.What comes next? 13, 19, 16, 22, 19, 25, ?
  8. 8.What comes next? 8, 11, 15, 20, 26, ?
  9. 9.What comes next? 7, 13, 11, 17, 15, 21, ?
  10. 10.What comes next? 2, 10, 8, 16, 14, 22, ?
  11. 11.What comes next? 6, 9, 12, 15, 18, ?
  12. 12.What comes next? 1, 3, 9, 27, 81, ?
  13. 13.What comes next? 3, 12, 21, 30, 39, ?
  14. 14.What comes next? 3, 6, 12, 24, 48, ?
  15. 15.What comes next? 2, 5, 8, 11, 14, ?
  16. 16.What comes next? 19, 28, 24, 33, 29, 38, ?
  17. 17.What comes next? 3, 9, 27, 81, 243, ?
  18. 18.What comes next? 1, 4, 8, 13, 19, ?
  19. 19.What comes next? 2, 11, 20, 29, 38, ?
  20. 20.What comes next? 8, 15, 24, 35, 48, ?
  21. 21.What comes next? 20, 23, 22, 25, 24, 27, ?
  22. 22.What comes next? 4, 9, 16, 25, 36, ?
  23. 23.What comes next? 14, 21, 28, 35, 42, ?
  24. 24.What comes next? 20, 25, 21, 26, 22, 27, ?
  25. 25.What comes next? 4, 12, 36, 108, 324, ?
  26. 26.What comes next? 10, 17, 26, 37, 50, ?
  27. 27.What comes next? 10, 13, 12, 15, 14, 17, ?
  28. 28.What comes next? 2, 5, 9, 14, 20, ?
  29. 29.What comes next? 16, 22, 21, 27, 26, 32, ?
  30. 30.What comes next? 16, 25, 36, 49, 64, ?
  31. 31.What comes next? 14, 18, 23, 29, 36, ?
  32. 32.What comes next? 2, 6, 18, 54, 162, ?
  33. 33.What comes next? 12, 21, 30, 39, 48, ?
  34. 34.What comes next? 9, 11, 14, 18, 23, ?
  35. 35.What comes next? 1, 10, 6, 15, 11, 20, ?
  36. 36.What comes next? 35, 48, 63, 80, 99, ?
  37. 37.What comes next? 26, 37, 50, 65, 82, ?
  38. 38.What comes next? 12, 13, 15, 18, 22, ?
  39. 39.What comes next? 24, 35, 48, 63, 80, ?
  40. 40.What comes next? 2, 4, 8, 16, 32, ?

Answer key

  1. 39
  2. 15
  3. 160
  4. 50
  5. 44
  6. 26
  7. 22
  8. 33
  9. 19
  10. 20
  11. 21
  12. 243
  13. 48
  14. 96
  15. 17
  16. 34
  17. 729
  18. 26
  19. 47
  20. 63
  21. 26
  22. 49
  23. 49
  24. 23
  25. 972
  26. 65
  27. 16
  28. 27
  29. 31
  30. 81
  31. 44
  32. 486
  33. 57
  34. 29
  35. 16
  36. 120
  37. 101
  38. 27
  39. 99
  40. 64

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