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

Number Series Worksheet for Maths Olympiad

Maths Olympiad topic 2: Number patterns: what comes next? · Set 929 · 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? 35, 29, 23, 17, 11, ? (a) 7 (b) 5 (c) 6 (d) 4
  2. 2.What comes next? 14, 17, 21, 26, 32, ? (a) 40 (b) 39 (c) 41 (d) 38
  3. 3.What comes next? 26, 30, 34, 38, 42, ? (a) 45 (b) 47 (c) 46 (d) 50
  4. 4.What comes next? 5, 10, 20, 40, 80, ? (a) 160 (b) 161 (c) 120 (d) 200
  5. 5.What comes next? 25, 21, 17, 13, 9, ? (a) 5 (b) 6 (c) 4 (d) 1
  6. 6.What comes next? 6, 9, 8, 11, 10, 13, ? (a) 14 (b) 16 (c) 11 (d) 12
  7. 7.What comes next? 29, 41, 53, 65, 77, ? (a) 89 (b) 90 (c) 101 (d) 88
  8. 8.What comes next? 8, 17, 15, 24, 22, 31, ? (a) 28 (b) 29 (c) 40 (d) 33
  9. 9.What comes next? 65, 57, 49, 41, 33, ? (a) 24 (b) 25 (c) 26 (d) 17
  10. 10.What comes next? 9, 15, 14, 20, 19, 25, ? (a) 26 (b) 23 (c) 24 (d) 31
  11. 11.What comes next? 2, 6, 3, 7, 4, 8, ? (a) 4 (b) 11 (c) 12 (d) 5
  12. 12.What comes next? 6, 8, 10, 12, 14, ? (a) 18 (b) 15 (c) 16 (d) 17
  13. 13.What comes next? 3, 5, 8, 12, 17, ? (a) 24 (b) 22 (c) 25 (d) 23
  14. 14.What comes next? 37, 34, 31, 28, 25, ? (a) 22 (b) 21 (c) 19 (d) 23
  15. 15.What comes next? 12, 21, 20, 29, 28, 37, ? (a) 46 (b) 35 (c) 38 (d) 36
  16. 16.What comes next? 2, 6, 18, 54, ? (a) 90 (b) 144 (c) 180 (d) 162
  17. 17.What comes next? 5, 6, 8, 11, 15, ? (a) 21 (b) 19 (c) 22 (d) 20
  18. 18.What comes next? 1, 7, 4, 10, 7, 13, ? (a) 19 (b) 10 (c) 16 (d) 9
  19. 19.What comes next? 50, 43, 36, 29, 22, ? (a) 15 (b) 16 (c) 14 (d) 8
  20. 20.What comes next? 22, 30, 38, 46, 54, ? (a) 61 (b) 63 (c) 62 (d) 70
  21. 21.What comes next? 60, 54, 48, 42, 36, ? (a) 29 (b) 24 (c) 31 (d) 30
  22. 22.What comes next? 24, 20, 16, 12, 8, ? (a) 6 (b) 4 (c) 3 (d) 5
  23. 23.What comes next? 7, 9, 11, 13, 15, ? (a) 18 (b) 19 (c) 17 (d) 16
  24. 24.What comes next? 10, 11, 13, 16, 20, ? (a) 25 (b) 24 (c) 26 (d) 27
  25. 25.What comes next? 8, 14, 20, 26, 32, ? (a) 38 (b) 44 (c) 39 (d) 37
  26. 26.What comes next? 20, 23, 22, 25, 24, 27, ? (a) 30 (b) 28 (c) 25 (d) 26
  27. 27.What comes next? 49, 43, 37, 31, 25, ? (a) 13 (b) 18 (c) 19 (d) 20
  28. 28.What comes next? 41, 34, 27, 20, 13, ? (a) 5 (b) 8 (c) 6 (d) 7
  29. 29.What comes next? 50, 46, 42, 38, 34, ? (a) 29 (b) 26 (c) 31 (d) 30
  30. 30.What comes next? 5, 16, 27, 38, 49, ? (a) 59 (b) 71 (c) 60 (d) 61
  31. 31.What comes next? 1, 3, 9, 27, ? (a) 90 (b) 72 (c) 81 (d) 45
  32. 32.What comes next? 12, 17, 14, 19, 16, 21, ? (a) 24 (b) 17 (c) 18 (d) 26
  33. 33.What comes next? 1, 2, 4, 8, 16, ? (a) 24 (b) 40 (c) 33 (d) 32
  34. 34.What comes next? 3, 5, 7, 9, 11, ? (a) 12 (b) 13 (c) 14 (d) 15
  35. 35.What comes next? 12, 14, 16, 18, 20, ? (a) 21 (b) 24 (c) 22 (d) 23
  36. 36.What comes next? 20, 29, 21, 30, 22, 31, ? (a) 23 (b) 22 (c) 40 (d) 39
  37. 37.What comes next? 19, 17, 15, 13, 11, ? (a) 10 (b) 8 (c) 9 (d) 7
  38. 38.What comes next? 17, 22, 27, 32, 37, ? (a) 42 (b) 41 (c) 43 (d) 47
  39. 39.What comes next? 60, 51, 42, 33, 24, ? (a) 14 (b) 16 (c) 6 (d) 15
  40. 40.What comes next? 35, 33, 31, 29, 27, ? (a) 25 (b) 23 (c) 24 (d) 26

Answer key

  1. 5
  2. 39
  3. 46
  4. 160
  5. 5
  6. 12
  7. 89
  8. 29
  9. 25
  10. 24
  11. 5
  12. 16
  13. 23
  14. 22
  15. 36
  16. 162
  17. 20
  18. 10
  19. 15
  20. 62
  21. 30
  22. 4
  23. 17
  24. 25
  25. 38
  26. 26
  27. 19
  28. 6
  29. 30
  30. 60
  31. 81
  32. 18
  33. 32
  34. 13
  35. 22
  36. 23
  37. 9
  38. 42
  39. 15
  40. 25

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