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

Number Series Worksheet for Maths Olympiad

Maths Olympiad topic 2: Number patterns: what comes next? · Set 570 · 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? 18, 21, 25, 30, 36, ? (a) 42 (b) 44 (c) 45 (d) 43
  2. 2.What comes next? 3, 10, 17, 24, 31, ? (a) 45 (b) 39 (c) 37 (d) 38
  3. 3.What comes next? 2, 4, 8, 16, 32, ? (a) 64 (b) 80 (c) 65 (d) 48
  4. 4.What comes next? 2, 7, 4, 9, 6, 11, ? (a) 8 (b) 14 (c) 16 (d) 7
  5. 5.What comes next? 3, 6, 12, 24, 48, ? (a) 72 (b) 97 (c) 96 (d) 120
  6. 6.What comes next? 2, 6, 11, 17, 24, ? (a) 31 (b) 32 (c) 33 (d) 34
  7. 7.What comes next? 17, 21, 19, 23, 21, 25, ? (a) 27 (b) 29 (c) 22 (d) 23
  8. 8.What comes next? 28, 26, 24, 22, 20, ? (a) 16 (b) 18 (c) 19 (d) 17
  9. 9.What comes next? 17, 25, 20, 28, 23, 31, ? (a) 36 (b) 39 (c) 26 (d) 25
  10. 10.What comes next? 48, 39, 30, 21, 12, ? (a) 5 (b) 3 (c) 4 (d) 2
  11. 11.What comes next? 7, 11, 16, 22, 29, ? (a) 39 (b) 38 (c) 36 (d) 37
  12. 12.What comes next? 46, 40, 34, 28, 22, ? (a) 10 (b) 16 (c) 15 (d) 17
  13. 13.What comes next? 32, 28, 24, 20, 16, ? (a) 8 (b) 11 (c) 12 (d) 13
  14. 14.What comes next? 12, 10, 8, 6, 4, ? (a) 4 (b) 1 (c) 3 (d) 2
  15. 15.What comes next? 20, 24, 29, 35, 42, ? (a) 51 (b) 49 (c) 52 (d) 50
  16. 16.What comes next? 4, 8, 16, 32, 64, ? (a) 160 (b) 96 (c) 128 (d) 129
  17. 17.What comes next? 14, 20, 19, 25, 24, 30, ? (a) 31 (b) 29 (c) 28 (d) 36
  18. 18.What comes next? 21, 18, 15, 12, 9, ? (a) 3 (b) 5 (c) 6 (d) 7
  19. 19.What comes next? 13, 20, 17, 24, 21, 28, ? (a) 31 (b) 25 (c) 24 (d) 35
  20. 20.What comes next? 4, 6, 9, 13, 18, ? (a) 24 (b) 23 (c) 25 (d) 26
  21. 21.What comes next? 30, 37, 44, 51, 58, ? (a) 66 (b) 64 (c) 65 (d) 72
  22. 22.What comes next? 50, 44, 38, 32, 26, ? (a) 21 (b) 20 (c) 19 (d) 14
  23. 23.What comes next? 12, 14, 17, 21, 26, ? (a) 32 (b) 31 (c) 34 (d) 33
  24. 24.What comes next? 14, 25, 36, 47, 58, ? (a) 68 (b) 69 (c) 80 (d) 70
  25. 25.What comes next? 8, 18, 28, 38, 48, ? (a) 68 (b) 57 (c) 59 (d) 58
  26. 26.What comes next? 34, 29, 24, 19, 14, ? (a) 8 (b) 4 (c) 9 (d) 10
  27. 27.What comes next? 2, 10, 8, 16, 14, 22, ? (a) 24 (b) 19 (c) 30 (d) 20
  28. 28.What comes next? 2, 6, 18, 54, ? (a) 162 (b) 90 (c) 180 (d) 144
  29. 29.What comes next? 11, 17, 23, 29, 35, ? (a) 42 (b) 41 (c) 47 (d) 40
  30. 30.What comes next? 1, 3, 9, 27, ? (a) 81 (b) 72 (c) 90 (d) 45
  31. 31.What comes next? 13, 15, 18, 22, 27, ? (a) 32 (b) 33 (c) 34 (d) 35
  32. 32.What comes next? 60, 52, 44, 36, 28, ? (a) 19 (b) 20 (c) 21 (d) 12
  33. 33.What comes next? 14, 24, 34, 44, 54, ? (a) 74 (b) 65 (c) 63 (d) 64
  34. 34.What comes next? 5, 10, 20, 40, 80, ? (a) 161 (b) 120 (c) 200 (d) 160
  35. 35.What comes next? 7, 11, 8, 12, 9, 13, ? (a) 9 (b) 10 (c) 17 (d) 16
  36. 36.What comes next? 11, 14, 17, 20, 23, ? (a) 26 (b) 27 (c) 25 (d) 29
  37. 37.What comes next? 13, 19, 18, 24, 23, 29, ? (a) 27 (b) 28 (c) 35 (d) 30
  38. 38.What comes next? 6, 8, 11, 15, 20, ? (a) 28 (b) 26 (c) 27 (d) 25
  39. 39.What comes next? 2, 4, 6, 8, 10, ? (a) 12 (b) 13 (c) 11 (d) 14
  40. 40.What comes next? 3, 11, 5, 13, 7, 15, ? (a) 23 (b) 9 (c) 8 (d) 21

Answer key

  1. 43
  2. 38
  3. 64
  4. 8
  5. 96
  6. 32
  7. 23
  8. 18
  9. 26
  10. 3
  11. 37
  12. 16
  13. 12
  14. 2
  15. 50
  16. 128
  17. 29
  18. 6
  19. 25
  20. 24
  21. 65
  22. 20
  23. 32
  24. 69
  25. 58
  26. 9
  27. 20
  28. 162
  29. 41
  30. 81
  31. 33
  32. 20
  33. 64
  34. 160
  35. 10
  36. 26
  37. 28
  38. 26
  39. 12
  40. 9

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