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

Number Series Worksheet for Maths Olympiad

Maths Olympiad topic 2: Number patterns: what comes next? · Set 127 · 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? 7, 9, 11, 13, 15, ? (a) 18 (b) 19 (c) 17 (d) 16
  2. 2.What comes next? 13, 20, 27, 34, 41, ? (a) 49 (b) 47 (c) 55 (d) 48
  3. 3.What comes next? 18, 20, 23, 27, 32, ? (a) 38 (b) 40 (c) 37 (d) 39
  4. 4.What comes next? 54, 47, 40, 33, 26, ? (a) 20 (b) 18 (c) 12 (d) 19
  5. 5.What comes next? 50, 42, 34, 26, 18, ? (a) 11 (b) 10 (c) 9 (d) 2
  6. 6.What comes next? 5, 10, 20, 40, 80, ? (a) 161 (b) 120 (c) 160 (d) 200
  7. 7.What comes next? 2, 6, 4, 8, 6, 10, ? (a) 12 (b) 8 (c) 7 (d) 14
  8. 8.What comes next? 7, 10, 14, 19, 25, ? (a) 31 (b) 34 (c) 32 (d) 33
  9. 9.What comes next? 14, 18, 23, 29, 36, ? (a) 43 (b) 44 (c) 45 (d) 46
  10. 10.What comes next? 22, 27, 32, 37, 42, ? (a) 47 (b) 46 (c) 52 (d) 48
  11. 11.What comes next? 51, 45, 39, 33, 27, ? (a) 20 (b) 22 (c) 15 (d) 21
  12. 12.What comes next? 50, 41, 32, 23, 14, ? (a) 4 (b) 6 (c) 5 (d) 7
  13. 13.What comes next? 7, 16, 14, 23, 21, 30, ? (a) 39 (b) 32 (c) 27 (d) 28
  14. 14.What comes next? 1, 3, 9, 27, ? (a) 81 (b) 90 (c) 45 (d) 72
  15. 15.What comes next? 11, 14, 12, 15, 13, 16, ? (a) 14 (b) 19 (c) 18 (d) 13
  16. 16.What comes next? 43, 39, 35, 31, 27, ? (a) 22 (b) 23 (c) 19 (d) 24
  17. 17.What comes next? 16, 19, 23, 28, 34, ? (a) 43 (b) 40 (c) 41 (d) 42
  18. 18.What comes next? 2, 4, 7, 11, 16, ? (a) 21 (b) 22 (c) 24 (d) 23
  19. 19.What comes next? 25, 35, 45, 55, 65, ? (a) 76 (b) 74 (c) 75 (d) 85
  20. 20.What comes next? 35, 30, 25, 20, 15, ? (a) 5 (b) 9 (c) 11 (d) 10
  21. 21.What comes next? 18, 19, 21, 24, 28, ? (a) 34 (b) 32 (c) 33 (d) 35
  22. 22.What comes next? 3, 12, 7, 16, 11, 20, ? (a) 25 (b) 14 (c) 29 (d) 15
  23. 23.What comes next? 10, 14, 18, 22, 26, ? (a) 34 (b) 29 (c) 31 (d) 30
  24. 24.What comes next? 6, 11, 9, 14, 12, 17, ? (a) 22 (b) 15 (c) 19 (d) 14
  25. 25.What comes next? 52, 45, 38, 31, 24, ? (a) 17 (b) 16 (c) 18 (d) 10
  26. 26.What comes next? 28, 39, 50, 61, 72, ? (a) 94 (b) 84 (c) 83 (d) 82
  27. 27.What comes next? 12, 21, 17, 26, 22, 31, ? (a) 40 (b) 26 (c) 27 (d) 35
  28. 28.What comes next? 2, 4, 8, 16, 32, ? (a) 65 (b) 64 (c) 80 (d) 48
  29. 29.What comes next? 20, 23, 26, 29, 32, ? (a) 38 (b) 34 (c) 35 (d) 36
  30. 30.What comes next? 1, 2, 4, 8, 16, ? (a) 24 (b) 40 (c) 32 (d) 33
  31. 31.What comes next? 20, 23, 27, 32, 38, ? (a) 44 (b) 46 (c) 47 (d) 45
  32. 32.What comes next? 40, 33, 26, 19, 12, ? (a) 7 (b) 5 (c) 6 (d) 4
  33. 33.What comes next? 3, 12, 21, 30, 39, ? (a) 47 (b) 57 (c) 48 (d) 49
  34. 34.What comes next? 9, 13, 18, 24, 31, ? (a) 38 (b) 40 (c) 41 (d) 39
  35. 35.What comes next? 17, 18, 20, 23, 27, ? (a) 31 (b) 34 (c) 33 (d) 32
  36. 36.What comes next? 32, 26, 20, 14, 8, ? (a) 3 (b) 1 (c) 2 (d) 4
  37. 37.What comes next? 17, 21, 25, 29, 33, ? (a) 41 (b) 37 (c) 36 (d) 38
  38. 38.What comes next? 12, 10, 8, 6, 4, ? (a) 3 (b) 4 (c) 2 (d) 1
  39. 39.What comes next? 51, 43, 35, 27, 19, ? (a) 12 (b) 10 (c) 3 (d) 11
  40. 40.What comes next? 5, 10, 9, 14, 13, 18, ? (a) 19 (b) 17 (c) 16 (d) 23

Answer key

  1. 17
  2. 48
  3. 38
  4. 19
  5. 10
  6. 160
  7. 8
  8. 32
  9. 44
  10. 47
  11. 21
  12. 5
  13. 28
  14. 81
  15. 14
  16. 23
  17. 41
  18. 22
  19. 75
  20. 10
  21. 33
  22. 15
  23. 30
  24. 15
  25. 17
  26. 83
  27. 27
  28. 64
  29. 35
  30. 32
  31. 45
  32. 5
  33. 48
  34. 39
  35. 32
  36. 2
  37. 37
  38. 2
  39. 11
  40. 17

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