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

Number Series Worksheet for Maths Olympiad

Maths Olympiad topic 2: Number patterns: what comes next? · Set 285 · 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? 2, 6, 18, 54, ? (a) 144 (b) 180 (c) 162 (d) 90
  2. 2.What comes next? 16, 20, 18, 22, 20, 24, ? (a) 21 (b) 28 (c) 26 (d) 22
  3. 3.What comes next? 4, 5, 7, 10, 14, ? (a) 20 (b) 19 (c) 18 (d) 21
  4. 4.What comes next? 7, 8, 10, 13, 17, ? (a) 21 (b) 22 (c) 23 (d) 24
  5. 5.What comes next? 2, 4, 8, 16, 32, ? (a) 80 (b) 65 (c) 48 (d) 64
  6. 6.What comes next? 1, 3, 9, 27, ? (a) 90 (b) 81 (c) 72 (d) 45
  7. 7.What comes next? 3, 8, 5, 10, 7, 12, ? (a) 8 (b) 17 (c) 9 (d) 15
  8. 8.What comes next? 19, 29, 39, 49, 59, ? (a) 68 (b) 69 (c) 70 (d) 79
  9. 9.What comes next? 42, 38, 34, 30, 26, ? (a) 23 (b) 22 (c) 18 (d) 21
  10. 10.What comes next? 1, 5, 3, 7, 5, 9, ? (a) 6 (b) 7 (c) 13 (d) 11
  11. 11.What comes next? 35, 30, 25, 20, 15, ? (a) 5 (b) 10 (c) 9 (d) 11
  12. 12.What comes next? 11, 17, 13, 19, 15, 21, ? (a) 25 (b) 17 (c) 16 (d) 27
  13. 13.What comes next? 19, 26, 25, 32, 31, 38, ? (a) 36 (b) 39 (c) 45 (d) 37
  14. 14.What comes next? 38, 35, 32, 29, 26, ? (a) 22 (b) 20 (c) 23 (d) 24
  15. 15.What comes next? 52, 47, 42, 37, 32, ? (a) 22 (b) 26 (c) 27 (d) 28
  16. 16.What comes next? 20, 22, 24, 26, 28, ? (a) 30 (b) 29 (c) 31 (d) 32
  17. 17.What comes next? 23, 32, 41, 50, 59, ? (a) 68 (b) 69 (c) 67 (d) 77
  18. 18.What comes next? 5, 6, 8, 11, 15, ? (a) 22 (b) 21 (c) 19 (d) 20
  19. 19.What comes next? 2, 11, 4, 13, 6, 15, ? (a) 24 (b) 7 (c) 22 (d) 8
  20. 20.What comes next? 1, 2, 4, 8, 16, ? (a) 33 (b) 24 (c) 32 (d) 40
  21. 21.What comes next? 46, 37, 28, 19, 10, ? (a) 3 (b) 1 (c) 2 (d) 4
  22. 22.What comes next? 6, 12, 18, 24, 30, ? (a) 35 (b) 42 (c) 36 (d) 37
  23. 23.What comes next? 3, 6, 12, 24, 48, ? (a) 120 (b) 72 (c) 97 (d) 96
  24. 24.What comes next? 3, 9, 27, 81, ? (a) 243 (b) 135 (c) 216 (d) 270
  25. 25.What comes next? 19, 26, 24, 31, 29, 36, ? (a) 43 (b) 33 (c) 34 (d) 38
  26. 26.What comes next? 17, 21, 26, 32, 39, ? (a) 48 (b) 49 (c) 46 (d) 47
  27. 27.What comes next? 5, 9, 6, 10, 7, 11, ? (a) 8 (b) 14 (c) 7 (d) 15
  28. 28.What comes next? 16, 24, 32, 40, 48, ? (a) 57 (b) 64 (c) 55 (d) 56
  29. 29.What comes next? 3, 6, 5, 8, 7, 10, ? (a) 11 (b) 8 (c) 9 (d) 13
  30. 30.What comes next? 11, 13, 16, 20, 25, ? (a) 31 (b) 33 (c) 30 (d) 32
  31. 31.What comes next? 2, 6, 3, 7, 4, 8, ? (a) 4 (b) 12 (c) 5 (d) 11
  32. 32.What comes next? 8, 14, 20, 26, 32, ? (a) 38 (b) 37 (c) 39 (d) 44
  33. 33.What comes next? 20, 23, 27, 32, 38, ? (a) 45 (b) 44 (c) 47 (d) 46
  34. 34.What comes next? 19, 23, 21, 25, 23, 27, ? (a) 31 (b) 24 (c) 25 (d) 29
  35. 35.What comes next? 22, 33, 44, 55, 66, ? (a) 77 (b) 78 (c) 88 (d) 76
  36. 36.What comes next? 13, 23, 33, 43, 53, ? (a) 64 (b) 73 (c) 62 (d) 63
  37. 37.What comes next? 59, 51, 43, 35, 27, ? (a) 18 (b) 11 (c) 19 (d) 20
  38. 38.What comes next? 52, 44, 36, 28, 20, ? (a) 11 (b) 4 (c) 13 (d) 12
  39. 39.What comes next? 37, 30, 23, 16, 9, ? (a) 2 (b) 3 (c) 4 (d) 1
  40. 40.What comes next? 34, 30, 26, 22, 18, ? (a) 13 (b) 10 (c) 14 (d) 15

Answer key

  1. 162
  2. 22
  3. 19
  4. 22
  5. 64
  6. 81
  7. 9
  8. 69
  9. 22
  10. 7
  11. 10
  12. 17
  13. 37
  14. 23
  15. 27
  16. 30
  17. 68
  18. 20
  19. 8
  20. 32
  21. 1
  22. 36
  23. 96
  24. 243
  25. 34
  26. 47
  27. 8
  28. 56
  29. 9
  30. 31
  31. 5
  32. 38
  33. 45
  34. 25
  35. 77
  36. 63
  37. 19
  38. 12
  39. 2
  40. 14

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