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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 142 · 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: 9, 29, 31, 73? (a) 9 (b) 29 (c) 31 (d) 73
  2. 2.Which number is the odd one out: 42, 78, 7, 6? (a) 42 (b) 78 (c) 7 (d) 6
  3. 3.Which number is the odd one out: 19, 41, 48, 83? (a) 19 (b) 41 (c) 48 (d) 83
  4. 4.Which number is the odd one out: 86, 2, 13, 59? (a) 86 (b) 2 (c) 13 (d) 59
  5. 5.Which number is the odd one out: 53, 3, 17, 15? (a) 53 (b) 3 (c) 17 (d) 15
  6. 6.Which number is the odd one out: 53, 90, 71, 83? (a) 53 (b) 90 (c) 71 (d) 83
  7. 7.Which number is the odd one out: 66, 84, 14, 28? (a) 66 (b) 84 (c) 14 (d) 28
  8. 8.Which number is the odd one out: 8, 97, 13, 41? (a) 8 (b) 97 (c) 13 (d) 41
  9. 9.Which number is the odd one out: 56, 79, 29, 53? (a) 56 (b) 79 (c) 29 (d) 53
  10. 10.Which number is the odd one out: 79, 93, 6, 13? (a) 79 (b) 93 (c) 6 (d) 13
  11. 11.Which number is the odd one out: 47, 11, 29, 60? (a) 47 (b) 11 (c) 29 (d) 60
  12. 12.Which number is the odd one out: 47, 62, 73, 29? (a) 47 (b) 62 (c) 73 (d) 29
  13. 13.Which number is the odd one out: 24, 88, 78, 32? (a) 24 (b) 88 (c) 78 (d) 32
  14. 14.Which number is the odd one out: 18, 54, 23, 99? (a) 18 (b) 54 (c) 23 (d) 99
  15. 15.Which number is the odd one out: 45, 14, 27, 15? (a) 45 (b) 14 (c) 27 (d) 15
  16. 16.Which number is the odd one out: 71, 6, 39, 37? (a) 71 (b) 6 (c) 39 (d) 37
  17. 17.Which number is the odd one out: 14, 77, 98, 83? (a) 14 (b) 77 (c) 98 (d) 83
  18. 18.Which number is the odd one out: 17, 68, 97, 59? (a) 17 (b) 68 (c) 97 (d) 59
  19. 19.Which number is the odd one out: 23, 76, 67, 29? (a) 23 (b) 76 (c) 67 (d) 29
  20. 20.Which number is the odd one out: 15, 43, 37, 11? (a) 15 (b) 43 (c) 37 (d) 11
  21. 21.Which number is the odd one out: 20, 47, 37, 17? (a) 20 (b) 47 (c) 37 (d) 17
  22. 22.Which number is the odd one out: 23, 29, 68, 47? (a) 23 (b) 29 (c) 68 (d) 47
  23. 23.Which number is the odd one out: 86, 46, 58, 27? (a) 86 (b) 46 (c) 58 (d) 27
  24. 24.Which number is the odd one out: 67, 58, 41, 59? (a) 67 (b) 58 (c) 41 (d) 59
  25. 25.Which number is the odd one out: 99, 27, 45, 30? (a) 99 (b) 27 (c) 45 (d) 30
  26. 26.Which number is the odd one out: 61, 17, 8, 41? (a) 61 (b) 17 (c) 8 (d) 41
  27. 27.Which number is the odd one out: 64, 16, 4, 6? (a) 64 (b) 16 (c) 4 (d) 6
  28. 28.Which number is the odd one out: 73, 68, 53, 61? (a) 73 (b) 68 (c) 53 (d) 61
  29. 29.Which number is the odd one out: 41, 97, 16, 61? (a) 41 (b) 97 (c) 16 (d) 61
  30. 30.Which number is the odd one out: 2, 38, 31, 67? (a) 2 (b) 38 (c) 31 (d) 67
  31. 31.Which number is the odd one out: 89, 64, 83, 79? (a) 89 (b) 64 (c) 83 (d) 79
  32. 32.Which number is the odd one out: 17, 43, 47, 70? (a) 17 (b) 43 (c) 47 (d) 70
  33. 33.Which number is the odd one out: 45, 80, 99, 93? (a) 45 (b) 80 (c) 99 (d) 93
  34. 34.Which number is the odd one out: 88, 26, 32, 8? (a) 88 (b) 26 (c) 32 (d) 8
  35. 35.Which number is the odd one out: 37, 29, 89, 9? (a) 37 (b) 29 (c) 89 (d) 9
  36. 36.Which number is the odd one out: 27, 37, 19, 89? (a) 27 (b) 37 (c) 19 (d) 89
  37. 37.Which number is the odd one out: 89, 61, 28, 67? (a) 89 (b) 61 (c) 28 (d) 67
  38. 38.Which number is the odd one out: 53, 2, 22, 31? (a) 53 (b) 2 (c) 22 (d) 31
  39. 39.Which number is the odd one out: 59, 23, 38, 2? (a) 59 (b) 23 (c) 38 (d) 2
  40. 40.Which number is the odd one out: 86, 79, 37, 89? (a) 86 (b) 79 (c) 37 (d) 89

Answer key

  1. 9
  2. 7
  3. 48
  4. 86
  5. 15
  6. 90
  7. 66
  8. 8
  9. 56
  10. 6
  11. 60
  12. 62
  13. 78
  14. 23
  15. 14
  16. 6
  17. 83
  18. 68
  19. 76
  20. 15
  21. 20
  22. 68
  23. 27
  24. 58
  25. 30
  26. 8
  27. 6
  28. 68
  29. 16
  30. 38
  31. 64
  32. 70
  33. 80
  34. 26
  35. 9
  36. 27
  37. 28
  38. 22
  39. 38
  40. 86

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