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

Number Series Worksheet for Maths Olympiad

Maths Olympiad topic 2: Number patterns: what comes next? · Set 944 · 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? 30, 25, 20, 15, 10, ? (a) 5 (b) 4 (c) 7 (d) 6
  2. 2.What comes next? 3, 9, 27, 81, ? (a) 243 (b) 270 (c) 135 (d) 216
  3. 3.What comes next? 2, 8, 5, 11, 8, 14, ? (a) 11 (b) 17 (c) 10 (d) 20
  4. 4.What comes next? 15, 18, 22, 27, 33, ? (a) 39 (b) 40 (c) 42 (d) 41
  5. 5.What comes next? 51, 44, 37, 30, 23, ? (a) 17 (b) 16 (c) 15 (d) 9
  6. 6.What comes next? 15, 16, 18, 21, 25, ? (a) 30 (b) 29 (c) 31 (d) 32
  7. 7.What comes next? 4, 10, 7, 13, 10, 16, ? (a) 13 (b) 12 (c) 22 (d) 19
  8. 8.What comes next? 5, 14, 7, 16, 9, 18, ? (a) 11 (b) 27 (c) 10 (d) 25
  9. 9.What comes next? 7, 8, 10, 13, 17, ? (a) 22 (b) 24 (c) 23 (d) 21
  10. 10.What comes next? 39, 35, 31, 27, 23, ? (a) 18 (b) 20 (c) 15 (d) 19
  11. 11.What comes next? 15, 23, 19, 27, 23, 31, ? (a) 27 (b) 39 (c) 35 (d) 26
  12. 12.What comes next? 16, 14, 12, 10, 8, ? (a) 5 (b) 7 (c) 6 (d) 4
  13. 13.What comes next? 29, 33, 37, 41, 45, ? (a) 53 (b) 50 (c) 48 (d) 49
  14. 14.What comes next? 1, 3, 9, 27, ? (a) 45 (b) 72 (c) 90 (d) 81
  15. 15.What comes next? 12, 15, 19, 24, 30, ? (a) 38 (b) 39 (c) 37 (d) 36
  16. 16.What comes next? 5, 9, 13, 17, 21, ? (a) 24 (b) 29 (c) 26 (d) 25
  17. 17.What comes next? 52, 46, 40, 34, 28, ? (a) 22 (b) 23 (c) 16 (d) 21
  18. 18.What comes next? 4, 8, 16, 32, 64, ? (a) 160 (b) 128 (c) 96 (d) 129
  19. 19.What comes next? 2, 6, 18, 54, ? (a) 180 (b) 162 (c) 90 (d) 144
  20. 20.What comes next? 2, 7, 12, 17, 22, ? (a) 32 (b) 28 (c) 27 (d) 26
  21. 21.What comes next? 6, 10, 14, 18, 22, ? (a) 27 (b) 30 (c) 25 (d) 26
  22. 22.What comes next? 73, 64, 55, 46, 37, ? (a) 19 (b) 29 (c) 27 (d) 28
  23. 23.What comes next? 10, 14, 18, 22, 26, ? (a) 29 (b) 31 (c) 30 (d) 34
  24. 24.What comes next? 3, 11, 8, 16, 13, 21, ? (a) 29 (b) 17 (c) 24 (d) 18
  25. 25.What comes next? 5, 10, 20, 40, 80, ? (a) 161 (b) 200 (c) 160 (d) 120
  26. 26.What comes next? 59, 51, 43, 35, 27, ? (a) 18 (b) 19 (c) 20 (d) 11
  27. 27.What comes next? 6, 9, 13, 18, 24, ? (a) 32 (b) 33 (c) 31 (d) 30
  28. 28.What comes next? 16, 18, 20, 22, 24, ? (a) 28 (b) 27 (c) 25 (d) 26
  29. 29.What comes next? 13, 16, 20, 25, 31, ? (a) 37 (b) 39 (c) 38 (d) 40
  30. 30.What comes next? 17, 22, 20, 25, 23, 28, ? (a) 25 (b) 30 (c) 26 (d) 33
  31. 31.What comes next? 3, 8, 4, 9, 5, 10, ? (a) 15 (b) 6 (c) 5 (d) 14
  32. 32.What comes next? 9, 13, 12, 16, 15, 19, ? (a) 17 (b) 23 (c) 20 (d) 18
  33. 33.What comes next? 41, 38, 35, 32, 29, ? (a) 25 (b) 26 (c) 27 (d) 23
  34. 34.What comes next? 2, 10, 3, 11, 4, 12, ? (a) 4 (b) 5 (c) 20 (d) 19
  35. 35.What comes next? 6, 7, 9, 12, 16, ? (a) 23 (b) 20 (c) 21 (d) 22
  36. 36.What comes next? 10, 12, 15, 19, 24, ? (a) 29 (b) 32 (c) 31 (d) 30
  37. 37.What comes next? 10, 14, 19, 25, 32, ? (a) 40 (b) 39 (c) 41 (d) 42
  38. 38.What comes next? 23, 28, 33, 38, 43, ? (a) 49 (b) 48 (c) 47 (d) 53
  39. 39.What comes next? 6, 12, 24, 48, 96, ? (a) 240 (b) 144 (c) 193 (d) 192
  40. 40.What comes next? 11, 12, 14, 17, 21, ? (a) 27 (b) 26 (c) 28 (d) 25

Answer key

  1. 5
  2. 243
  3. 11
  4. 40
  5. 16
  6. 30
  7. 13
  8. 11
  9. 22
  10. 19
  11. 27
  12. 6
  13. 49
  14. 81
  15. 37
  16. 25
  17. 22
  18. 128
  19. 162
  20. 27
  21. 26
  22. 28
  23. 30
  24. 18
  25. 160
  26. 19
  27. 31
  28. 26
  29. 38
  30. 26
  31. 6
  32. 18
  33. 26
  34. 5
  35. 21
  36. 30
  37. 40
  38. 48
  39. 192
  40. 26

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