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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 949 · 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: 29, 8, 23, 43? (a) 29 (b) 8 (c) 23 (d) 43
  2. 2.Which number is the odd one out: 59, 2, 52, 73? (a) 59 (b) 2 (c) 52 (d) 73
  3. 3.Which number is the odd one out: 59, 29, 89, 55? (a) 59 (b) 29 (c) 89 (d) 55
  4. 4.Which number is the odd one out: 73, 71, 53, 22? (a) 73 (b) 71 (c) 53 (d) 22
  5. 5.Which number is the odd one out: 93, 68, 32, 8? (a) 93 (b) 68 (c) 32 (d) 8
  6. 6.Which number is the odd one out: 83, 41, 95, 31? (a) 83 (b) 41 (c) 95 (d) 31
  7. 7.Which number is the odd one out: 29, 57, 53, 41? (a) 29 (b) 57 (c) 53 (d) 41
  8. 8.Which number is the odd one out: 29, 19, 89, 72? (a) 29 (b) 19 (c) 89 (d) 72
  9. 9.Which number is the odd one out: 7, 47, 91, 77? (a) 7 (b) 47 (c) 91 (d) 77
  10. 10.Which number is the odd one out: 95, 38, 65, 50? (a) 95 (b) 38 (c) 65 (d) 50
  11. 11.Which number is the odd one out: 73, 19, 37, 92? (a) 73 (b) 19 (c) 37 (d) 92
  12. 12.Which number is the odd one out: 15, 79, 73, 3? (a) 15 (b) 79 (c) 73 (d) 3
  13. 13.Which number is the odd one out: 66, 65, 15, 95? (a) 66 (b) 65 (c) 15 (d) 95
  14. 14.Which number is the odd one out: 15, 11, 43, 83? (a) 15 (b) 11 (c) 43 (d) 83
  15. 15.Which number is the odd one out: 31, 17, 85, 41? (a) 31 (b) 17 (c) 85 (d) 41
  16. 16.Which number is the odd one out: 65, 50, 98, 85? (a) 65 (b) 50 (c) 98 (d) 85
  17. 17.Which number is the odd one out: 35, 56, 65, 50? (a) 35 (b) 56 (c) 65 (d) 50
  18. 18.Which number is the odd one out: 5, 79, 35, 89? (a) 5 (b) 79 (c) 35 (d) 89
  19. 19.Which number is the odd one out: 32, 50, 96, 48? (a) 32 (b) 50 (c) 96 (d) 48
  20. 20.Which number is the odd one out: 97, 59, 23, 62? (a) 97 (b) 59 (c) 23 (d) 62
  21. 21.Which number is the odd one out: 68, 76, 81, 4? (a) 68 (b) 76 (c) 81 (d) 4
  22. 22.Which number is the odd one out: 40, 80, 14, 8? (a) 40 (b) 80 (c) 14 (d) 8
  23. 23.Which number is the odd one out: 33, 79, 41, 83? (a) 33 (b) 79 (c) 41 (d) 83
  24. 24.Which number is the odd one out: 79, 2, 84, 71? (a) 79 (b) 2 (c) 84 (d) 71
  25. 25.Which number is the odd one out: 19, 17, 12, 59? (a) 19 (b) 17 (c) 12 (d) 59
  26. 26.Which number is the odd one out: 2, 41, 66, 3? (a) 2 (b) 41 (c) 66 (d) 3
  27. 27.Which number is the odd one out: 8, 16, 25, 32? (a) 8 (b) 16 (c) 25 (d) 32
  28. 28.Which number is the odd one out: 42, 31, 97, 2? (a) 42 (b) 31 (c) 97 (d) 2
  29. 29.Which number is the odd one out: 53, 23, 30, 69? (a) 53 (b) 23 (c) 30 (d) 69
  30. 30.Which number is the odd one out: 24, 41, 48, 82? (a) 24 (b) 41 (c) 48 (d) 82
  31. 31.Which number is the odd one out: 91, 29, 23, 43? (a) 91 (b) 29 (c) 23 (d) 43
  32. 32.Which number is the odd one out: 57, 87, 75, 70? (a) 57 (b) 87 (c) 75 (d) 70
  33. 33.Which number is the odd one out: 47, 19, 29, 32? (a) 47 (b) 19 (c) 29 (d) 32
  34. 34.Which number is the odd one out: 8, 64, 66, 16? (a) 8 (b) 64 (c) 66 (d) 16
  35. 35.Which number is the odd one out: 85, 61, 83, 17? (a) 85 (b) 61 (c) 83 (d) 17
  36. 36.Which number is the odd one out: 92, 73, 11, 67? (a) 92 (b) 73 (c) 11 (d) 67
  37. 37.Which number is the odd one out: 96, 19, 41, 39? (a) 96 (b) 19 (c) 41 (d) 39
  38. 38.Which number is the odd one out: 2, 86, 29, 17? (a) 2 (b) 86 (c) 29 (d) 17
  39. 39.Which number is the odd one out: 83, 41, 73, 84? (a) 83 (b) 41 (c) 73 (d) 84
  40. 40.Which number is the odd one out: 31, 43, 36, 71? (a) 31 (b) 43 (c) 36 (d) 71

Answer key

  1. 8
  2. 52
  3. 55
  4. 22
  5. 93
  6. 95
  7. 57
  8. 72
  9. 47
  10. 38
  11. 92
  12. 15
  13. 66
  14. 15
  15. 85
  16. 98
  17. 56
  18. 35
  19. 50
  20. 62
  21. 81
  22. 14
  23. 33
  24. 84
  25. 12
  26. 66
  27. 25
  28. 42
  29. 30
  30. 41
  31. 91
  32. 70
  33. 32
  34. 66
  35. 85
  36. 92
  37. 96
  38. 86
  39. 84
  40. 36

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