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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 329 · 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: 67, 6, 3, 78? (a) 67 (b) 6 (c) 3 (d) 78
  2. 2.Which number is the odd one out: 29, 48, 6, 96? (a) 29 (b) 48 (c) 6 (d) 96
  3. 3.Which number is the odd one out: 83, 27, 18, 54? (a) 83 (b) 27 (c) 18 (d) 54
  4. 4.Which number is the odd one out: 9, 23, 71, 37? (a) 9 (b) 23 (c) 71 (d) 37
  5. 5.Which number is the odd one out: 95, 15, 57, 55? (a) 95 (b) 15 (c) 57 (d) 55
  6. 6.Which number is the odd one out: 41, 42, 7, 97? (a) 41 (b) 42 (c) 7 (d) 97
  7. 7.Which number is the odd one out: 2, 17, 84, 89? (a) 2 (b) 17 (c) 84 (d) 89
  8. 8.Which number is the odd one out: 41, 59, 29, 78? (a) 41 (b) 59 (c) 29 (d) 78
  9. 9.Which number is the odd one out: 23, 37, 31, 65? (a) 23 (b) 37 (c) 31 (d) 65
  10. 10.Which number is the odd one out: 6, 96, 23, 24? (a) 6 (b) 96 (c) 23 (d) 24
  11. 11.Which number is the odd one out: 43, 50, 41, 5? (a) 43 (b) 50 (c) 41 (d) 5
  12. 12.Which number is the odd one out: 11, 59, 3, 15? (a) 11 (b) 59 (c) 3 (d) 15
  13. 13.Which number is the odd one out: 48, 24, 49, 16? (a) 48 (b) 24 (c) 49 (d) 16
  14. 14.Which number is the odd one out: 19, 35, 7, 79? (a) 19 (b) 35 (c) 7 (d) 79
  15. 15.Which number is the odd one out: 30, 44, 40, 88? (a) 30 (b) 44 (c) 40 (d) 88
  16. 16.Which number is the odd one out: 87, 40, 3, 47? (a) 87 (b) 40 (c) 3 (d) 47
  17. 17.Which number is the odd one out: 83, 67, 3, 18? (a) 83 (b) 67 (c) 3 (d) 18
  18. 18.Which number is the odd one out: 84, 33, 53, 61? (a) 84 (b) 33 (c) 53 (d) 61
  19. 19.Which number is the odd one out: 2, 67, 32, 13? (a) 2 (b) 67 (c) 32 (d) 13
  20. 20.Which number is the odd one out: 40, 31, 71, 83? (a) 40 (b) 31 (c) 71 (d) 83
  21. 21.Which number is the odd one out: 52, 13, 61, 59? (a) 52 (b) 13 (c) 61 (d) 59
  22. 22.Which number is the odd one out: 57, 5, 90, 31? (a) 57 (b) 5 (c) 90 (d) 31
  23. 23.Which number is the odd one out: 23, 62, 73, 11? (a) 23 (b) 62 (c) 73 (d) 11
  24. 24.Which number is the odd one out: 97, 11, 21, 19? (a) 97 (b) 11 (c) 21 (d) 19
  25. 25.Which number is the odd one out: 29, 41, 64, 97? (a) 29 (b) 41 (c) 64 (d) 97
  26. 26.Which number is the odd one out: 83, 78, 67, 71? (a) 83 (b) 78 (c) 67 (d) 71
  27. 27.Which number is the odd one out: 36, 13, 17, 87? (a) 36 (b) 13 (c) 17 (d) 87
  28. 28.Which number is the odd one out: 43, 95, 73, 79? (a) 43 (b) 95 (c) 73 (d) 79
  29. 29.Which number is the odd one out: 83, 3, 67, 93? (a) 83 (b) 3 (c) 67 (d) 93
  30. 30.Which number is the odd one out: 40, 10, 97, 80? (a) 40 (b) 10 (c) 97 (d) 80
  31. 31.Which number is the odd one out: 6, 24, 8, 76? (a) 6 (b) 24 (c) 8 (d) 76
  32. 32.Which number is the odd one out: 23, 29, 83, 24? (a) 23 (b) 29 (c) 83 (d) 24
  33. 33.Which number is the odd one out: 59, 47, 38, 73? (a) 59 (b) 47 (c) 38 (d) 73
  34. 34.Which number is the odd one out: 71, 39, 97, 17? (a) 71 (b) 39 (c) 97 (d) 17
  35. 35.Which number is the odd one out: 14, 98, 21, 3? (a) 14 (b) 98 (c) 21 (d) 3
  36. 36.Which number is the odd one out: 6, 8, 96, 32? (a) 6 (b) 8 (c) 96 (d) 32
  37. 37.Which number is the odd one out: 49, 81, 9, 7? (a) 49 (b) 81 (c) 9 (d) 7
  38. 38.Which number is the odd one out: 27, 83, 41, 13? (a) 27 (b) 83 (c) 41 (d) 13
  39. 39.Which number is the odd one out: 91, 2, 98, 7? (a) 91 (b) 2 (c) 98 (d) 7
  40. 40.Which number is the odd one out: 96, 67, 37, 43? (a) 96 (b) 67 (c) 37 (d) 43

Answer key

  1. 67
  2. 29
  3. 83
  4. 9
  5. 57
  6. 42
  7. 84
  8. 78
  9. 65
  10. 23
  11. 50
  12. 15
  13. 49
  14. 35
  15. 30
  16. 40
  17. 18
  18. 84
  19. 32
  20. 40
  21. 52
  22. 90
  23. 62
  24. 21
  25. 64
  26. 78
  27. 36
  28. 95
  29. 93
  30. 97
  31. 6
  32. 24
  33. 38
  34. 39
  35. 3
  36. 6
  37. 7
  38. 27
  39. 2
  40. 96

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