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

Number Series Worksheet for Maths Olympiad

Maths Olympiad topic 2: Number patterns: what comes next? · Set 968 · 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? 4, 8, 16, 32, 64, ? (a) 128 (b) 129 (c) 96 (d) 160
  2. 2.What comes next? 5, 6, 8, 11, 15, ? (a) 19 (b) 22 (c) 20 (d) 21
  3. 3.What comes next? 6, 11, 8, 13, 10, 15, ? (a) 11 (b) 12 (c) 18 (d) 20
  4. 4.What comes next? 2, 6, 18, 54, ? (a) 162 (b) 90 (c) 144 (d) 180
  5. 5.What comes next? 1, 3, 9, 27, ? (a) 45 (b) 81 (c) 90 (d) 72
  6. 6.What comes next? 9, 13, 18, 24, 31, ? (a) 38 (b) 40 (c) 41 (d) 39
  7. 7.What comes next? 30, 27, 24, 21, 18, ? (a) 16 (b) 14 (c) 12 (d) 15
  8. 8.What comes next? 20, 30, 40, 50, 60, ? (a) 70 (b) 69 (c) 80 (d) 71
  9. 9.What comes next? 5, 10, 20, 40, 80, ? (a) 160 (b) 200 (c) 161 (d) 120
  10. 10.What comes next? 17, 15, 13, 11, 9, ? (a) 7 (b) 5 (c) 6 (d) 8
  11. 11.What comes next? 6, 12, 24, 48, 96, ? (a) 144 (b) 240 (c) 193 (d) 192
  12. 12.What comes next? 15, 20, 18, 23, 21, 26, ? (a) 24 (b) 23 (c) 28 (d) 31
  13. 13.What comes next? 33, 28, 23, 18, 13, ? (a) 3 (b) 8 (c) 7 (d) 9
  14. 14.What comes next? 18, 22, 27, 33, 40, ? (a) 50 (b) 48 (c) 49 (d) 47
  15. 15.What comes next? 18, 22, 26, 30, 34, ? (a) 38 (b) 37 (c) 39 (d) 42
  16. 16.What comes next? 51, 46, 41, 36, 31, ? (a) 21 (b) 26 (c) 25 (d) 27
  17. 17.What comes next? 17, 28, 39, 50, 61, ? (a) 73 (b) 83 (c) 72 (d) 71
  18. 18.What comes next? 1, 5, 4, 8, 7, 11, ? (a) 15 (b) 12 (c) 9 (d) 10
  19. 19.What comes next? 12, 13, 15, 18, 22, ? (a) 26 (b) 29 (c) 27 (d) 28
  20. 20.What comes next? 14, 20, 16, 22, 18, 24, ? (a) 19 (b) 28 (c) 30 (d) 20
  21. 21.What comes next? 3, 6, 10, 15, 21, ? (a) 27 (b) 28 (c) 30 (d) 29
  22. 22.What comes next? 24, 29, 34, 39, 44, ? (a) 49 (b) 54 (c) 50 (d) 48
  23. 23.What comes next? 3, 4, 6, 9, 13, ? (a) 17 (b) 18 (c) 20 (d) 19
  24. 24.What comes next? 37, 31, 25, 19, 13, ? (a) 8 (b) 6 (c) 7 (d) 1
  25. 25.What comes next? 63, 55, 47, 39, 31, ? (a) 22 (b) 24 (c) 15 (d) 23
  26. 26.What comes next? 5, 11, 9, 15, 13, 19, ? (a) 17 (b) 21 (c) 25 (d) 16
  27. 27.What comes next? 13, 21, 14, 22, 15, 23, ? (a) 16 (b) 31 (c) 30 (d) 15
  28. 28.What comes next? 18, 22, 19, 23, 20, 24, ? (a) 21 (b) 28 (c) 27 (d) 20
  29. 29.What comes next? 23, 30, 37, 44, 51, ? (a) 65 (b) 59 (c) 57 (d) 58
  30. 30.What comes next? 29, 36, 43, 50, 57, ? (a) 65 (b) 71 (c) 64 (d) 63
  31. 31.What comes next? 2, 12, 22, 32, 42, ? (a) 62 (b) 51 (c) 52 (d) 53
  32. 32.What comes next? 2, 4, 8, 16, 32, ? (a) 80 (b) 64 (c) 65 (d) 48
  33. 33.What comes next? 12, 15, 14, 17, 16, 19, ? (a) 17 (b) 20 (c) 22 (d) 18
  34. 34.What comes next? 34, 28, 22, 16, 10, ? (a) 5 (b) 6 (c) 4 (d) 3
  35. 35.What comes next? 70, 61, 52, 43, 34, ? (a) 16 (b) 24 (c) 25 (d) 26
  36. 36.What comes next? 2, 5, 9, 14, 20, ? (a) 29 (b) 26 (c) 27 (d) 28
  37. 37.What comes next? 8, 12, 17, 23, 30, ? (a) 40 (b) 38 (c) 37 (d) 39
  38. 38.What comes next? 4, 8, 13, 19, 26, ? (a) 36 (b) 35 (c) 34 (d) 33
  39. 39.What comes next? 13, 15, 18, 22, 27, ? (a) 33 (b) 34 (c) 35 (d) 32
  40. 40.What comes next? 56, 50, 44, 38, 32, ? (a) 25 (b) 26 (c) 20 (d) 27

Answer key

  1. 128
  2. 20
  3. 12
  4. 162
  5. 81
  6. 39
  7. 15
  8. 70
  9. 160
  10. 7
  11. 192
  12. 24
  13. 8
  14. 48
  15. 38
  16. 26
  17. 72
  18. 10
  19. 27
  20. 20
  21. 28
  22. 49
  23. 18
  24. 7
  25. 23
  26. 17
  27. 16
  28. 21
  29. 58
  30. 64
  31. 52
  32. 64
  33. 18
  34. 4
  35. 25
  36. 27
  37. 38
  38. 34
  39. 33
  40. 26

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