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

Number Series Worksheet for Maths Olympiad

Maths Olympiad topic 2: Number patterns: what comes next? · Set 34 · 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? 13, 18, 16, 21, 19, 24, ? (a) 26 (b) 21 (c) 22 (d) 29
  2. 2.What comes next? 17, 26, 23, 32, 29, 38, ? (a) 35 (b) 34 (c) 41 (d) 47
  3. 3.What comes next? 70, 62, 54, 46, 38, ? (a) 29 (b) 22 (c) 31 (d) 30
  4. 4.What comes next? 3, 4, 6, 9, 13, ? (a) 19 (b) 20 (c) 17 (d) 18
  5. 5.What comes next? 5, 14, 11, 20, 17, 26, ? (a) 35 (b) 22 (c) 29 (d) 23
  6. 6.What comes next? 46, 40, 34, 28, 22, ? (a) 15 (b) 16 (c) 10 (d) 17
  7. 7.What comes next? 21, 23, 25, 27, 29, ? (a) 31 (b) 30 (c) 32 (d) 33
  8. 8.What comes next? 14, 19, 24, 29, 34, ? (a) 44 (b) 38 (c) 40 (d) 39
  9. 9.What comes next? 1, 2, 4, 8, 16, ? (a) 24 (b) 33 (c) 40 (d) 32
  10. 10.What comes next? 5, 10, 20, 40, 80, ? (a) 120 (b) 161 (c) 200 (d) 160
  11. 11.What comes next? 1, 3, 9, 27, ? (a) 90 (b) 81 (c) 72 (d) 45
  12. 12.What comes next? 23, 19, 15, 11, 7, ? (a) 4 (b) 3 (c) 5 (d) 2
  13. 13.What comes next? 4, 8, 16, 32, 64, ? (a) 129 (b) 160 (c) 96 (d) 128
  14. 14.What comes next? 6, 12, 24, 48, 96, ? (a) 144 (b) 240 (c) 193 (d) 192
  15. 15.What comes next? 39, 35, 31, 27, 23, ? (a) 20 (b) 15 (c) 18 (d) 19
  16. 16.What comes next? 20, 23, 27, 32, 38, ? (a) 45 (b) 46 (c) 44 (d) 47
  17. 17.What comes next? 2, 6, 3, 7, 4, 8, ? (a) 12 (b) 5 (c) 11 (d) 4
  18. 18.What comes next? 12, 19, 18, 25, 24, 31, ? (a) 38 (b) 29 (c) 30 (d) 32
  19. 19.What comes next? 3, 10, 6, 13, 9, 16, ? (a) 23 (b) 20 (c) 11 (d) 12
  20. 20.What comes next? 50, 45, 40, 35, 30, ? (a) 25 (b) 24 (c) 26 (d) 20
  21. 21.What comes next? 16, 24, 17, 25, 18, 26, ? (a) 19 (b) 33 (c) 34 (d) 18
  22. 22.What comes next? 3, 6, 12, 24, 48, ? (a) 97 (b) 120 (c) 96 (d) 72
  23. 23.What comes next? 4, 8, 5, 9, 6, 10, ? (a) 6 (b) 13 (c) 14 (d) 7
  24. 24.What comes next? 8, 16, 24, 32, 40, ? (a) 56 (b) 47 (c) 49 (d) 48
  25. 25.What comes next? 4, 14, 24, 34, 44, ? (a) 55 (b) 54 (c) 53 (d) 64
  26. 26.What comes next? 20, 24, 23, 27, 26, 30, ? (a) 28 (b) 29 (c) 31 (d) 34
  27. 27.What comes next? 43, 36, 29, 22, 15, ? (a) 9 (b) 1 (c) 8 (d) 7
  28. 28.What comes next? 18, 27, 22, 31, 26, 35, ? (a) 29 (b) 44 (c) 40 (d) 30
  29. 29.What comes next? 38, 36, 34, 32, 30, ? (a) 27 (b) 28 (c) 29 (d) 26
  30. 30.What comes next? 2, 4, 6, 8, 10, ? (a) 12 (b) 13 (c) 14 (d) 11
  31. 31.What comes next? 12, 13, 15, 18, 22, ? (a) 27 (b) 28 (c) 29 (d) 26
  32. 32.What comes next? 2, 6, 18, 54, ? (a) 144 (b) 90 (c) 162 (d) 180
  33. 33.What comes next? 46, 38, 30, 22, 14, ? (a) 7 (b) 8 (c) 5 (d) 6
  34. 34.What comes next? 10, 12, 15, 19, 24, ? (a) 31 (b) 29 (c) 30 (d) 32
  35. 35.What comes next? 15, 19, 23, 27, 31, ? (a) 36 (b) 39 (c) 35 (d) 34
  36. 36.What comes next? 7, 19, 31, 43, 55, ? (a) 67 (b) 66 (c) 79 (d) 68
  37. 37.What comes next? 17, 26, 19, 28, 21, 30, ? (a) 22 (b) 39 (c) 37 (d) 23
  38. 38.What comes next? 7, 13, 11, 17, 15, 21, ? (a) 27 (b) 19 (c) 23 (d) 18
  39. 39.What comes next? 29, 32, 35, 38, 41, ? (a) 47 (b) 45 (c) 44 (d) 43
  40. 40.What comes next? 21, 17, 13, 9, 5, ? (a) 2 (b) 3 (c) 4 (d) 1

Answer key

  1. 22
  2. 35
  3. 30
  4. 18
  5. 23
  6. 16
  7. 31
  8. 39
  9. 32
  10. 160
  11. 81
  12. 3
  13. 128
  14. 192
  15. 19
  16. 45
  17. 5
  18. 30
  19. 12
  20. 25
  21. 19
  22. 96
  23. 7
  24. 48
  25. 54
  26. 29
  27. 8
  28. 30
  29. 28
  30. 12
  31. 27
  32. 162
  33. 6
  34. 30
  35. 35
  36. 67
  37. 23
  38. 19
  39. 44
  40. 1

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