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

Number Series Worksheet for Maths Olympiad

Maths Olympiad topic 2: Number patterns: what comes next? · Set 491 · 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? 1, 4, 2, 5, 3, 6, ? (a) 3 (b) 8 (c) 4 (d) 9
  2. 2.What comes next? 1, 3, 9, 27, ? (a) 72 (b) 81 (c) 90 (d) 45
  3. 3.What comes next? 27, 29, 31, 33, 35, ? (a) 39 (b) 37 (c) 36 (d) 38
  4. 4.What comes next? 18, 16, 14, 12, 10, ? (a) 6 (b) 9 (c) 7 (d) 8
  5. 5.What comes next? 9, 11, 14, 18, 23, ? (a) 30 (b) 29 (c) 31 (d) 28
  6. 6.What comes next? 34, 31, 28, 25, 22, ? (a) 16 (b) 19 (c) 18 (d) 20
  7. 7.What comes next? 45, 38, 31, 24, 17, ? (a) 9 (b) 11 (c) 3 (d) 10
  8. 8.What comes next? 6, 12, 24, 48, 96, ? (a) 193 (b) 240 (c) 144 (d) 192
  9. 9.What comes next? 17, 23, 29, 35, 41, ? (a) 47 (b) 46 (c) 53 (d) 48
  10. 10.What comes next? 47, 41, 35, 29, 23, ? (a) 16 (b) 17 (c) 18 (d) 11
  11. 11.What comes next? 3, 7, 6, 10, 9, 13, ? (a) 14 (b) 17 (c) 12 (d) 11
  12. 12.What comes next? 31, 25, 19, 13, 7, ? (a) 2 (b) 4 (c) 1 (d) 3
  13. 13.What comes next? 1, 2, 4, 8, 16, ? (a) 40 (b) 32 (c) 24 (d) 33
  14. 14.What comes next? 15, 18, 22, 27, 33, ? (a) 41 (b) 39 (c) 42 (d) 40
  15. 15.What comes next? 22, 18, 14, 10, 6, ? (a) 1 (b) 3 (c) 4 (d) 2
  16. 16.What comes next? 3, 12, 10, 19, 17, 26, ? (a) 28 (b) 35 (c) 23 (d) 24
  17. 17.What comes next? 65, 58, 51, 44, 37, ? (a) 29 (b) 23 (c) 30 (d) 31
  18. 18.What comes next? 6, 15, 24, 33, 42, ? (a) 52 (b) 50 (c) 51 (d) 60
  19. 19.What comes next? 30, 38, 46, 54, 62, ? (a) 69 (b) 71 (c) 78 (d) 70
  20. 20.What comes next? 19, 20, 22, 25, 29, ? (a) 33 (b) 34 (c) 36 (d) 35
  21. 21.What comes next? 6, 15, 9, 18, 12, 21, ? (a) 27 (b) 15 (c) 30 (d) 14
  22. 22.What comes next? 2, 6, 18, 54, ? (a) 162 (b) 180 (c) 144 (d) 90
  23. 23.What comes next? 19, 17, 15, 13, 11, ? (a) 9 (b) 7 (c) 10 (d) 8
  24. 24.What comes next? 43, 36, 29, 22, 15, ? (a) 8 (b) 9 (c) 1 (d) 7
  25. 25.What comes next? 13, 19, 17, 23, 21, 27, ? (a) 25 (b) 24 (c) 33 (d) 29
  26. 26.What comes next? 13, 11, 9, 7, 5, ? (a) 3 (b) 2 (c) 4 (d) 1
  27. 27.What comes next? 4, 5, 7, 10, 14, ? (a) 18 (b) 21 (c) 19 (d) 20
  28. 28.What comes next? 25, 21, 17, 13, 9, ? (a) 1 (b) 6 (c) 5 (d) 4
  29. 29.What comes next? 7, 8, 10, 13, 17, ? (a) 21 (b) 24 (c) 22 (d) 23
  30. 30.What comes next? 20, 31, 42, 53, 64, ? (a) 74 (b) 76 (c) 75 (d) 86
  31. 31.What comes next? 4, 8, 16, 32, 64, ? (a) 96 (b) 128 (c) 129 (d) 160
  32. 32.What comes next? 45, 39, 33, 27, 21, ? (a) 16 (b) 14 (c) 15 (d) 9
  33. 33.What comes next? 35, 33, 31, 29, 27, ? (a) 26 (b) 24 (c) 25 (d) 23
  34. 34.What comes next? 16, 20, 19, 23, 22, 26, ? (a) 27 (b) 30 (c) 25 (d) 24
  35. 35.What comes next? 5, 10, 9, 14, 13, 18, ? (a) 16 (b) 17 (c) 23 (d) 19
  36. 36.What comes next? 5, 10, 20, 40, 80, ? (a) 160 (b) 200 (c) 161 (d) 120
  37. 37.What comes next? 6, 9, 8, 11, 10, 13, ? (a) 12 (b) 16 (c) 14 (d) 11
  38. 38.What comes next? 3, 4, 6, 9, 13, ? (a) 18 (b) 20 (c) 17 (d) 19
  39. 39.What comes next? 19, 31, 43, 55, 67, ? (a) 78 (b) 80 (c) 91 (d) 79
  40. 40.What comes next? 7, 10, 8, 11, 9, 12, ? (a) 14 (b) 9 (c) 15 (d) 10

Answer key

  1. 4
  2. 81
  3. 37
  4. 8
  5. 29
  6. 19
  7. 10
  8. 192
  9. 47
  10. 17
  11. 12
  12. 1
  13. 32
  14. 40
  15. 2
  16. 24
  17. 30
  18. 51
  19. 70
  20. 34
  21. 15
  22. 162
  23. 9
  24. 8
  25. 25
  26. 3
  27. 19
  28. 5
  29. 22
  30. 75
  31. 128
  32. 15
  33. 25
  34. 25
  35. 17
  36. 160
  37. 12
  38. 18
  39. 79
  40. 10

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