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

Number Series Worksheet for Maths Olympiad

Maths Olympiad topic 2: Number patterns: what comes next? · Set 667 · 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? 24, 33, 42, 51, 60, ? (a) 78 (b) 68 (c) 70 (d) 69
  2. 2.What comes next? 5, 10, 20, 40, 80, ? (a) 161 (b) 120 (c) 160 (d) 200
  3. 3.What comes next? 5, 14, 11, 20, 17, 26, ? (a) 22 (b) 23 (c) 29 (d) 35
  4. 4.What comes next? 2, 6, 18, 54, ? (a) 144 (b) 180 (c) 162 (d) 90
  5. 5.What comes next? 18, 20, 22, 24, 26, ? (a) 27 (b) 28 (c) 29 (d) 30
  6. 6.What comes next? 24, 34, 44, 54, 64, ? (a) 75 (b) 74 (c) 84 (d) 73
  7. 7.What comes next? 18, 19, 21, 24, 28, ? (a) 32 (b) 34 (c) 35 (d) 33
  8. 8.What comes next? 6, 9, 13, 18, 24, ? (a) 33 (b) 30 (c) 31 (d) 32
  9. 9.What comes next? 27, 34, 41, 48, 55, ? (a) 63 (b) 61 (c) 62 (d) 69
  10. 10.What comes next? 12, 10, 8, 6, 4, ? (a) 4 (b) 2 (c) 3 (d) 1
  11. 11.What comes next? 21, 32, 43, 54, 65, ? (a) 77 (b) 87 (c) 75 (d) 76
  12. 12.What comes next? 16, 21, 19, 24, 22, 27, ? (a) 29 (b) 24 (c) 32 (d) 25
  13. 13.What comes next? 43, 40, 37, 34, 31, ? (a) 29 (b) 25 (c) 27 (d) 28
  14. 14.What comes next? 1, 3, 9, 27, ? (a) 90 (b) 72 (c) 45 (d) 81
  15. 15.What comes next? 3, 15, 27, 39, 51, ? (a) 64 (b) 75 (c) 62 (d) 63
  16. 16.What comes next? 3, 6, 12, 24, 48, ? (a) 96 (b) 120 (c) 72 (d) 97
  17. 17.What comes next? 20, 26, 32, 38, 44, ? (a) 51 (b) 56 (c) 49 (d) 50
  18. 18.What comes next? 20, 24, 21, 25, 22, 26, ? (a) 30 (b) 23 (c) 22 (d) 29
  19. 19.What comes next? 1, 8, 6, 13, 11, 18, ? (a) 15 (b) 20 (c) 16 (d) 25
  20. 20.What comes next? 2, 10, 18, 26, 34, ? (a) 50 (b) 42 (c) 41 (d) 43
  21. 21.What comes next? 12, 13, 15, 18, 22, ? (a) 27 (b) 29 (c) 28 (d) 26
  22. 22.What comes next? 2, 4, 8, 16, 32, ? (a) 80 (b) 65 (c) 64 (d) 48
  23. 23.What comes next? 20, 24, 28, 32, 36, ? (a) 41 (b) 39 (c) 40 (d) 44
  24. 24.What comes next? 8, 9, 11, 14, 18, ? (a) 25 (b) 24 (c) 23 (d) 22
  25. 25.What comes next? 18, 25, 23, 30, 28, 35, ? (a) 37 (b) 42 (c) 32 (d) 33
  26. 26.What comes next? 18, 24, 23, 29, 28, 34, ? (a) 33 (b) 32 (c) 40 (d) 35
  27. 27.What comes next? 32, 27, 22, 17, 12, ? (a) 2 (b) 6 (c) 8 (d) 7
  28. 28.What comes next? 5, 6, 8, 11, 15, ? (a) 19 (b) 20 (c) 21 (d) 22
  29. 29.What comes next? 4, 13, 22, 31, 40, ? (a) 58 (b) 49 (c) 50 (d) 48
  30. 30.What comes next? 10, 22, 34, 46, 58, ? (a) 82 (b) 70 (c) 69 (d) 71
  31. 31.What comes next? 3, 10, 5, 12, 7, 14, ? (a) 8 (b) 9 (c) 19 (d) 21
  32. 32.What comes next? 5, 9, 14, 20, 27, ? (a) 34 (b) 36 (c) 35 (d) 37
  33. 33.What comes next? 27, 33, 39, 45, 51, ? (a) 57 (b) 58 (c) 63 (d) 56
  34. 34.What comes next? 15, 17, 19, 21, 23, ? (a) 26 (b) 25 (c) 24 (d) 27
  35. 35.What comes next? 1, 2, 4, 7, 11, ? (a) 16 (b) 18 (c) 17 (d) 15
  36. 36.What comes next? 1, 8, 3, 10, 5, 12, ? (a) 7 (b) 17 (c) 6 (d) 19
  37. 37.What comes next? 7, 11, 16, 22, 29, ? (a) 39 (b) 38 (c) 37 (d) 36
  38. 38.What comes next? 8, 13, 9, 14, 10, 15, ? (a) 20 (b) 10 (c) 11 (d) 19
  39. 39.What comes next? 10, 12, 15, 19, 24, ? (a) 30 (b) 29 (c) 32 (d) 31
  40. 40.What comes next? 12, 15, 19, 24, 30, ? (a) 39 (b) 38 (c) 37 (d) 36

Answer key

  1. 69
  2. 160
  3. 23
  4. 162
  5. 28
  6. 74
  7. 33
  8. 31
  9. 62
  10. 2
  11. 76
  12. 25
  13. 28
  14. 81
  15. 63
  16. 96
  17. 50
  18. 23
  19. 16
  20. 42
  21. 27
  22. 64
  23. 40
  24. 23
  25. 33
  26. 33
  27. 7
  28. 20
  29. 49
  30. 70
  31. 9
  32. 35
  33. 57
  34. 25
  35. 16
  36. 7
  37. 37
  38. 11
  39. 30
  40. 37

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