← Number patterns: what comes next? lesson New set →

Number Series Worksheet for Maths Olympiad

Maths Olympiad topic 2: Number patterns: what comes next? · Set 393 · 40 questions
TalentJR

How to solve it (Look at the gaps): Look at two numbers side by side and find the jump: 5 → 10 is a jump of +5. Is the jump the same every time? Then add the same jump once more to the last number. Going down? Take away the same jump. Harder patterns: the jump can grow (+2, +3, +4 …) or the numbers can double (2, 4, 8, 16 …).

NameDateTime takenScore ___ / 40
  1. 1.What comes next? 63, 54, 45, 36, 27, ? (a) 18 (b) 17 (c) 19 (d) 9
  2. 2.What comes next? 13, 17, 21, 25, 29, ? (a) 33 (b) 37 (c) 34 (d) 32
  3. 3.What comes next? 11, 13, 16, 20, 25, ? (a) 32 (b) 30 (c) 33 (d) 31
  4. 4.What comes next? 10, 11, 13, 16, 20, ? (a) 27 (b) 24 (c) 26 (d) 25
  5. 5.What comes next? 1, 3, 9, 27, ? (a) 90 (b) 45 (c) 81 (d) 72
  6. 6.What comes next? 24, 28, 32, 36, 40, ? (a) 43 (b) 44 (c) 48 (d) 45
  7. 7.What comes next? 29, 25, 21, 17, 13, ? (a) 8 (b) 5 (c) 10 (d) 9
  8. 8.What comes next? 10, 13, 16, 19, 22, ? (a) 24 (b) 26 (c) 25 (d) 28
  9. 9.What comes next? 8, 11, 15, 20, 26, ? (a) 34 (b) 33 (c) 35 (d) 32
  10. 10.What comes next? 7, 9, 12, 16, 21, ? (a) 28 (b) 29 (c) 27 (d) 26
  11. 11.What comes next? 8, 17, 26, 35, 44, ? (a) 62 (b) 53 (c) 54 (d) 52
  12. 12.What comes next? 3, 6, 12, 24, 48, ? (a) 97 (b) 120 (c) 72 (d) 96
  13. 13.What comes next? 27, 25, 23, 21, 19, ? (a) 16 (b) 18 (c) 15 (d) 17
  14. 14.What comes next? 3, 9, 27, 81, ? (a) 243 (b) 135 (c) 270 (d) 216
  15. 15.What comes next? 3, 8, 13, 18, 23, ? (a) 27 (b) 33 (c) 28 (d) 29
  16. 16.What comes next? 9, 12, 16, 21, 27, ? (a) 34 (b) 36 (c) 35 (d) 33
  17. 17.What comes next? 4, 8, 5, 9, 6, 10, ? (a) 6 (b) 13 (c) 14 (d) 7
  18. 18.What comes next? 19, 17, 15, 13, 11, ? (a) 8 (b) 7 (c) 9 (d) 10
  19. 19.What comes next? 12, 13, 15, 18, 22, ? (a) 28 (b) 29 (c) 26 (d) 27
  20. 20.What comes next? 2, 6, 10, 14, 18, ? (a) 22 (b) 21 (c) 26 (d) 23
  21. 21.What comes next? 19, 25, 23, 29, 27, 33, ? (a) 35 (b) 30 (c) 39 (d) 31
  22. 22.What comes next? 2, 6, 5, 9, 8, 12, ? (a) 13 (b) 16 (c) 11 (d) 10
  23. 23.What comes next? 30, 38, 46, 54, 62, ? (a) 71 (b) 78 (c) 69 (d) 70
  24. 24.What comes next? 17, 25, 24, 32, 31, 39, ? (a) 37 (b) 38 (c) 40 (d) 47
  25. 25.What comes next? 1, 2, 4, 8, 16, ? (a) 40 (b) 32 (c) 33 (d) 24
  26. 26.What comes next? 20, 23, 22, 25, 24, 27, ? (a) 26 (b) 30 (c) 28 (d) 25
  27. 27.What comes next? 48, 39, 30, 21, 12, ? (a) 5 (b) 2 (c) 4 (d) 3
  28. 28.What comes next? 4, 14, 24, 34, 44, ? (a) 64 (b) 55 (c) 54 (d) 53
  29. 29.What comes next? 14, 15, 17, 20, 24, ? (a) 29 (b) 28 (c) 31 (d) 30
  30. 30.What comes next? 46, 38, 30, 22, 14, ? (a) 6 (b) 5 (c) 7 (d) 8
  31. 31.What comes next? 17, 20, 24, 29, 35, ? (a) 41 (b) 42 (c) 44 (d) 43
  32. 32.What comes next? 16, 19, 22, 25, 28, ? (a) 32 (b) 31 (c) 34 (d) 30
  33. 33.What comes next? 27, 33, 39, 45, 51, ? (a) 57 (b) 63 (c) 56 (d) 58
  34. 34.What comes next? 36, 33, 30, 27, 24, ? (a) 22 (b) 18 (c) 20 (d) 21
  35. 35.What comes next? 3, 10, 8, 15, 13, 20, ? (a) 18 (b) 17 (c) 27 (d) 22
  36. 36.What comes next? 50, 41, 32, 23, 14, ? (a) 4 (b) 7 (c) 6 (d) 5
  37. 37.What comes next? 4, 10, 9, 15, 14, 20, ? (a) 26 (b) 21 (c) 18 (d) 19
  38. 38.What comes next? 6, 15, 24, 33, 42, ? (a) 52 (b) 51 (c) 60 (d) 50
  39. 39.What comes next? 50, 46, 42, 38, 34, ? (a) 26 (b) 29 (c) 30 (d) 31
  40. 40.What comes next? 18, 24, 30, 36, 42, ? (a) 54 (b) 49 (c) 47 (d) 48

Answer key

  1. 18
  2. 33
  3. 31
  4. 25
  5. 81
  6. 44
  7. 9
  8. 25
  9. 33
  10. 27
  11. 53
  12. 96
  13. 17
  14. 243
  15. 28
  16. 34
  17. 7
  18. 9
  19. 27
  20. 22
  21. 31
  22. 11
  23. 70
  24. 38
  25. 32
  26. 26
  27. 3
  28. 54
  29. 29
  30. 6
  31. 42
  32. 31
  33. 57
  34. 21
  35. 18
  36. 5
  37. 19
  38. 51
  39. 30
  40. 48

Free maths olympiad lessons, practice and worksheets at talentjr.in/maths-olympiad