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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 403 · 40 questions
TalentJR

How to think it through (Test every number): Check each number for a property: even/odd, prime (only two factors), square (4, 9, 16 …), or a multiple of 3, 4, 5 … 9. Find the property that three numbers share and one does not. Make sure no other property points at a different number — then that one is the odd one out.

NameDateTime takenScore ___ / 40
  1. 1.Which number is the odd one out: 65, 15, 22, 75? (a) 65 (b) 15 (c) 22 (d) 75
  2. 2.Which number is the odd one out: 32, 54, 24, 8? (a) 32 (b) 54 (c) 24 (d) 8
  3. 3.Which number is the odd one out: 41, 61, 72, 3? (a) 41 (b) 61 (c) 72 (d) 3
  4. 4.Which number is the odd one out: 98, 21, 14, 57? (a) 98 (b) 21 (c) 14 (d) 57
  5. 5.Which number is the odd one out: 13, 74, 89, 73? (a) 13 (b) 74 (c) 89 (d) 73
  6. 6.Which number is the odd one out: 2, 68, 44, 92? (a) 2 (b) 68 (c) 44 (d) 92
  7. 7.Which number is the odd one out: 16, 4, 64, 45? (a) 16 (b) 4 (c) 64 (d) 45
  8. 8.Which number is the odd one out: 41, 89, 2, 82? (a) 41 (b) 89 (c) 2 (d) 82
  9. 9.Which number is the odd one out: 84, 3, 11, 7? (a) 84 (b) 3 (c) 11 (d) 7
  10. 10.Which number is the odd one out: 38, 62, 22, 7? (a) 38 (b) 62 (c) 22 (d) 7
  11. 11.Which number is the odd one out: 24, 80, 48, 85? (a) 24 (b) 80 (c) 48 (d) 85
  12. 12.Which number is the odd one out: 17, 45, 37, 5? (a) 17 (b) 45 (c) 37 (d) 5
  13. 13.Which number is the odd one out: 30, 11, 60, 12? (a) 30 (b) 11 (c) 60 (d) 12
  14. 14.Which number is the odd one out: 11, 83, 17, 69? (a) 11 (b) 83 (c) 17 (d) 69
  15. 15.Which number is the odd one out: 17, 53, 37, 51? (a) 17 (b) 53 (c) 37 (d) 51
  16. 16.Which number is the odd one out: 15, 52, 65, 33? (a) 15 (b) 52 (c) 65 (d) 33
  17. 17.Which number is the odd one out: 21, 14, 91, 78? (a) 21 (b) 14 (c) 91 (d) 78
  18. 18.Which number is the odd one out: 5, 29, 59, 85? (a) 5 (b) 29 (c) 59 (d) 85
  19. 19.Which number is the odd one out: 81, 43, 37, 31? (a) 81 (b) 43 (c) 37 (d) 31
  20. 20.Which number is the odd one out: 32, 8, 67, 88? (a) 32 (b) 8 (c) 67 (d) 88
  21. 21.Which number is the odd one out: 47, 23, 6, 59? (a) 47 (b) 23 (c) 6 (d) 59
  22. 22.Which number is the odd one out: 77, 39, 91, 21? (a) 77 (b) 39 (c) 91 (d) 21
  23. 23.Which number is the odd one out: 78, 40, 32, 80? (a) 78 (b) 40 (c) 32 (d) 80
  24. 24.Which number is the odd one out: 59, 80, 37, 61? (a) 59 (b) 80 (c) 37 (d) 61
  25. 25.Which number is the odd one out: 19, 2, 41, 84? (a) 19 (b) 2 (c) 41 (d) 84
  26. 26.Which number is the odd one out: 59, 31, 8, 71? (a) 59 (b) 31 (c) 8 (d) 71
  27. 27.Which number is the odd one out: 47, 29, 96, 43? (a) 47 (b) 29 (c) 96 (d) 43
  28. 28.Which number is the odd one out: 47, 71, 91, 53? (a) 47 (b) 71 (c) 91 (d) 53
  29. 29.Which number is the odd one out: 64, 4, 77, 16? (a) 64 (b) 4 (c) 77 (d) 16
  30. 30.Which number is the odd one out: 87, 97, 23, 29? (a) 87 (b) 97 (c) 23 (d) 29
  31. 31.Which number is the odd one out: 99, 31, 41, 13? (a) 99 (b) 31 (c) 41 (d) 13
  32. 32.Which number is the odd one out: 72, 79, 43, 83? (a) 72 (b) 79 (c) 43 (d) 83
  33. 33.Which number is the odd one out: 20, 84, 14, 60? (a) 20 (b) 84 (c) 14 (d) 60
  34. 34.Which number is the odd one out: 23, 33, 97, 43? (a) 23 (b) 33 (c) 97 (d) 43
  35. 35.Which number is the odd one out: 59, 75, 29, 47? (a) 59 (b) 75 (c) 29 (d) 47
  36. 36.Which number is the odd one out: 97, 31, 53, 8? (a) 97 (b) 31 (c) 53 (d) 8
  37. 37.Which number is the odd one out: 37, 2, 61, 43? (a) 37 (b) 2 (c) 61 (d) 43
  38. 38.Which number is the odd one out: 17, 59, 90, 13? (a) 17 (b) 59 (c) 90 (d) 13
  39. 39.Which number is the odd one out: 61, 79, 84, 83? (a) 61 (b) 79 (c) 84 (d) 83
  40. 40.Which number is the odd one out: 51, 3, 47, 23? (a) 51 (b) 3 (c) 47 (d) 23

Answer key

  1. 22
  2. 54
  3. 72
  4. 57
  5. 74
  6. 2
  7. 45
  8. 82
  9. 84
  10. 7
  11. 85
  12. 45
  13. 11
  14. 69
  15. 51
  16. 52
  17. 78
  18. 85
  19. 81
  20. 67
  21. 6
  22. 39
  23. 78
  24. 80
  25. 84
  26. 8
  27. 96
  28. 91
  29. 77
  30. 87
  31. 99
  32. 72
  33. 14
  34. 33
  35. 75
  36. 8
  37. 2
  38. 90
  39. 84
  40. 51

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