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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 89 · 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: 19, 5, 15, 43? (a) 19 (b) 5 (c) 15 (d) 43
  2. 2.Which number is the odd one out: 53, 14, 67, 17? (a) 53 (b) 14 (c) 67 (d) 17
  3. 3.Which number is the odd one out: 12, 84, 76, 7? (a) 12 (b) 84 (c) 76 (d) 7
  4. 4.Which number is the odd one out: 69, 43, 67, 19? (a) 69 (b) 43 (c) 67 (d) 19
  5. 5.Which number is the odd one out: 32, 81, 9, 64? (a) 32 (b) 81 (c) 9 (d) 64
  6. 6.Which number is the odd one out: 37, 13, 17, 32? (a) 37 (b) 13 (c) 17 (d) 32
  7. 7.Which number is the odd one out: 29, 59, 13, 66? (a) 29 (b) 59 (c) 13 (d) 66
  8. 8.Which number is the odd one out: 73, 31, 40, 83? (a) 73 (b) 31 (c) 40 (d) 83
  9. 9.Which number is the odd one out: 11, 72, 23, 13? (a) 11 (b) 72 (c) 23 (d) 13
  10. 10.Which number is the odd one out: 58, 49, 34, 86? (a) 58 (b) 49 (c) 34 (d) 86
  11. 11.Which number is the odd one out: 94, 31, 2, 83? (a) 94 (b) 31 (c) 2 (d) 83
  12. 12.Which number is the odd one out: 45, 78, 48, 72? (a) 45 (b) 78 (c) 48 (d) 72
  13. 13.Which number is the odd one out: 53, 55, 13, 37? (a) 53 (b) 55 (c) 13 (d) 37
  14. 14.Which number is the odd one out: 24, 46, 48, 8? (a) 24 (b) 46 (c) 48 (d) 8
  15. 15.Which number is the odd one out: 18, 90, 15, 54? (a) 18 (b) 90 (c) 15 (d) 54
  16. 16.Which number is the odd one out: 42, 17, 67, 11? (a) 42 (b) 17 (c) 67 (d) 11
  17. 17.Which number is the odd one out: 41, 97, 54, 43? (a) 41 (b) 97 (c) 54 (d) 43
  18. 18.Which number is the odd one out: 30, 89, 29, 61? (a) 30 (b) 89 (c) 29 (d) 61
  19. 19.Which number is the odd one out: 17, 32, 37, 29? (a) 17 (b) 32 (c) 37 (d) 29
  20. 20.Which number is the odd one out: 53, 27, 83, 67? (a) 53 (b) 27 (c) 83 (d) 67
  21. 21.Which number is the odd one out: 7, 35, 19, 17? (a) 7 (b) 35 (c) 19 (d) 17
  22. 22.Which number is the odd one out: 11, 83, 75, 3? (a) 11 (b) 83 (c) 75 (d) 3
  23. 23.Which number is the odd one out: 14, 23, 89, 83? (a) 14 (b) 23 (c) 89 (d) 83
  24. 24.Which number is the odd one out: 20, 48, 85, 65? (a) 20 (b) 48 (c) 85 (d) 65
  25. 25.Which number is the odd one out: 96, 76, 86, 48? (a) 96 (b) 76 (c) 86 (d) 48
  26. 26.Which number is the odd one out: 17, 22, 71, 73? (a) 17 (b) 22 (c) 71 (d) 73
  27. 27.Which number is the odd one out: 89, 52, 53, 37? (a) 89 (b) 52 (c) 53 (d) 37
  28. 28.Which number is the odd one out: 19, 6, 73, 41? (a) 19 (b) 6 (c) 73 (d) 41
  29. 29.Which number is the odd one out: 48, 60, 77, 80? (a) 48 (b) 60 (c) 77 (d) 80
  30. 30.Which number is the odd one out: 67, 70, 83, 2? (a) 67 (b) 70 (c) 83 (d) 2
  31. 31.Which number is the odd one out: 73, 39, 97, 59? (a) 73 (b) 39 (c) 97 (d) 59
  32. 32.Which number is the odd one out: 14, 97, 31, 47? (a) 14 (b) 97 (c) 31 (d) 47
  33. 33.Which number is the odd one out: 9, 81, 86, 99? (a) 9 (b) 81 (c) 86 (d) 99
  34. 34.Which number is the odd one out: 55, 93, 99, 27? (a) 55 (b) 93 (c) 99 (d) 27
  35. 35.Which number is the odd one out: 9, 11, 13, 97? (a) 9 (b) 11 (c) 13 (d) 97
  36. 36.Which number is the odd one out: 67, 26, 17, 11? (a) 67 (b) 26 (c) 17 (d) 11
  37. 37.Which number is the odd one out: 60, 27, 9, 36? (a) 60 (b) 27 (c) 9 (d) 36
  38. 38.Which number is the odd one out: 92, 23, 43, 53? (a) 92 (b) 23 (c) 43 (d) 53
  39. 39.Which number is the odd one out: 28, 84, 42, 37? (a) 28 (b) 84 (c) 42 (d) 37
  40. 40.Which number is the odd one out: 53, 29, 97, 28? (a) 53 (b) 29 (c) 97 (d) 28

Answer key

  1. 15
  2. 14
  3. 7
  4. 69
  5. 32
  6. 32
  7. 66
  8. 40
  9. 72
  10. 49
  11. 94
  12. 45
  13. 55
  14. 46
  15. 15
  16. 42
  17. 54
  18. 30
  19. 32
  20. 27
  21. 35
  22. 75
  23. 14
  24. 48
  25. 86
  26. 22
  27. 52
  28. 6
  29. 77
  30. 70
  31. 39
  32. 14
  33. 86
  34. 55
  35. 9
  36. 26
  37. 60
  38. 92
  39. 37
  40. 28

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