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

Number Series Worksheet for Maths Olympiad

Maths Olympiad topic 2: Number patterns: what comes next? · Set 368 · 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? 22, 24, 26, 28, 30, ? (a) 33 (b) 32 (c) 31 (d) 34
  2. 2.What comes next? 49, 40, 31, 22, 13, ? (a) 3 (b) 4 (c) 6 (d) 5
  3. 3.What comes next? 5, 10, 20, 40, 80, ? (a) 160 (b) 120 (c) 200 (d) 161
  4. 4.What comes next? 17, 27, 37, 47, 57, ? (a) 77 (b) 67 (c) 68 (d) 66
  5. 5.What comes next? 20, 25, 30, 35, 40, ? (a) 46 (b) 44 (c) 45 (d) 50
  6. 6.What comes next? 6, 10, 15, 21, 28, ? (a) 37 (b) 35 (c) 38 (d) 36
  7. 7.What comes next? 1, 3, 9, 27, ? (a) 45 (b) 90 (c) 81 (d) 72
  8. 8.What comes next? 11, 17, 16, 22, 21, 27, ? (a) 28 (b) 25 (c) 33 (d) 26
  9. 9.What comes next? 12, 14, 17, 21, 26, ? (a) 34 (b) 32 (c) 33 (d) 31
  10. 10.What comes next? 50, 46, 42, 38, 34, ? (a) 26 (b) 29 (c) 30 (d) 31
  11. 11.What comes next? 2, 6, 18, 54, ? (a) 144 (b) 180 (c) 90 (d) 162
  12. 12.What comes next? 60, 53, 46, 39, 32, ? (a) 18 (b) 26 (c) 25 (d) 24
  13. 13.What comes next? 32, 27, 22, 17, 12, ? (a) 2 (b) 6 (c) 8 (d) 7
  14. 14.What comes next? 38, 36, 34, 32, 30, ? (a) 26 (b) 29 (c) 28 (d) 27
  15. 15.What comes next? 23, 34, 45, 56, 67, ? (a) 77 (b) 78 (c) 89 (d) 79
  16. 16.What comes next? 17, 20, 24, 29, 35, ? (a) 41 (b) 43 (c) 42 (d) 44
  17. 17.What comes next? 3, 9, 27, 81, ? (a) 216 (b) 270 (c) 243 (d) 135
  18. 18.What comes next? 1, 5, 10, 16, 23, ? (a) 30 (b) 31 (c) 32 (d) 33
  19. 19.What comes next? 6, 10, 7, 11, 8, 12, ? (a) 16 (b) 8 (c) 15 (d) 9
  20. 20.What comes next? 6, 14, 8, 16, 10, 18, ? (a) 11 (b) 24 (c) 26 (d) 12
  21. 21.What comes next? 13, 22, 15, 24, 17, 26, ? (a) 19 (b) 35 (c) 18 (d) 33
  22. 22.What comes next? 74, 65, 56, 47, 38, ? (a) 30 (b) 28 (c) 29 (d) 20
  23. 23.What comes next? 1, 2, 4, 8, 16, ? (a) 32 (b) 33 (c) 24 (d) 40
  24. 24.What comes next? 29, 39, 49, 59, 69, ? (a) 89 (b) 80 (c) 78 (d) 79
  25. 25.What comes next? 3, 6, 12, 24, 48, ? (a) 120 (b) 72 (c) 97 (d) 96
  26. 26.What comes next? 13, 22, 31, 40, 49, ? (a) 57 (b) 58 (c) 67 (d) 59
  27. 27.What comes next? 11, 12, 14, 17, 21, ? (a) 27 (b) 26 (c) 28 (d) 25
  28. 28.What comes next? 23, 20, 17, 14, 11, ? (a) 8 (b) 9 (c) 5 (d) 7
  29. 29.What comes next? 22, 29, 36, 43, 50, ? (a) 57 (b) 56 (c) 64 (d) 58
  30. 30.What comes next? 30, 32, 34, 36, 38, ? (a) 41 (b) 40 (c) 39 (d) 42
  31. 31.What comes next? 43, 36, 29, 22, 15, ? (a) 9 (b) 1 (c) 7 (d) 8
  32. 32.What comes next? 48, 42, 36, 30, 24, ? (a) 17 (b) 19 (c) 18 (d) 12
  33. 33.What comes next? 15, 19, 18, 22, 21, 25, ? (a) 26 (b) 24 (c) 23 (d) 29
  34. 34.What comes next? 64, 55, 46, 37, 28, ? (a) 18 (b) 10 (c) 19 (d) 20
  35. 35.What comes next? 3, 4, 6, 9, 13, ? (a) 17 (b) 20 (c) 18 (d) 19
  36. 36.What comes next? 16, 21, 26, 31, 36, ? (a) 40 (b) 41 (c) 46 (d) 42
  37. 37.What comes next? 15, 22, 29, 36, 43, ? (a) 50 (b) 51 (c) 57 (d) 49
  38. 38.What comes next? 4, 10, 8, 14, 12, 18, ? (a) 16 (b) 20 (c) 24 (d) 15
  39. 39.What comes next? 2, 11, 10, 19, 18, 27, ? (a) 36 (b) 28 (c) 26 (d) 25
  40. 40.What comes next? 19, 23, 28, 34, 41, ? (a) 50 (b) 48 (c) 51 (d) 49

Answer key

  1. 32
  2. 4
  3. 160
  4. 67
  5. 45
  6. 36
  7. 81
  8. 26
  9. 32
  10. 30
  11. 162
  12. 25
  13. 7
  14. 28
  15. 78
  16. 42
  17. 243
  18. 31
  19. 9
  20. 12
  21. 19
  22. 29
  23. 32
  24. 79
  25. 96
  26. 58
  27. 26
  28. 8
  29. 57
  30. 40
  31. 8
  32. 18
  33. 24
  34. 19
  35. 18
  36. 41
  37. 50
  38. 16
  39. 26
  40. 49

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