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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 785 · 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, 13, 85, 55? (a) 65 (b) 13 (c) 85 (d) 55
  2. 2.Which number is the odd one out: 41, 45, 37, 61? (a) 41 (b) 45 (c) 37 (d) 61
  3. 3.Which number is the odd one out: 97, 96, 29, 67? (a) 97 (b) 96 (c) 29 (d) 67
  4. 4.Which number is the odd one out: 85, 25, 64, 16? (a) 85 (b) 25 (c) 64 (d) 16
  5. 5.Which number is the odd one out: 20, 67, 17, 97? (a) 20 (b) 67 (c) 17 (d) 97
  6. 6.Which number is the odd one out: 28, 23, 89, 79? (a) 28 (b) 23 (c) 89 (d) 79
  7. 7.Which number is the odd one out: 59, 17, 77, 11? (a) 59 (b) 17 (c) 77 (d) 11
  8. 8.Which number is the odd one out: 61, 19, 23, 99? (a) 61 (b) 19 (c) 23 (d) 99
  9. 9.Which number is the odd one out: 7, 19, 77, 89? (a) 7 (b) 19 (c) 77 (d) 89
  10. 10.Which number is the odd one out: 8, 7, 56, 92? (a) 8 (b) 7 (c) 56 (d) 92
  11. 11.Which number is the odd one out: 13, 10, 23, 19? (a) 13 (b) 10 (c) 23 (d) 19
  12. 12.Which number is the odd one out: 17, 14, 7, 47? (a) 17 (b) 14 (c) 7 (d) 47
  13. 13.Which number is the odd one out: 67, 31, 54, 11? (a) 67 (b) 31 (c) 54 (d) 11
  14. 14.Which number is the odd one out: 21, 16, 38, 64? (a) 21 (b) 16 (c) 38 (d) 64
  15. 15.Which number is the odd one out: 61, 83, 78, 17? (a) 61 (b) 83 (c) 78 (d) 17
  16. 16.Which number is the odd one out: 41, 86, 23, 73? (a) 41 (b) 86 (c) 23 (d) 73
  17. 17.Which number is the odd one out: 81, 9, 49, 28? (a) 81 (b) 9 (c) 49 (d) 28
  18. 18.Which number is the odd one out: 26, 61, 17, 67? (a) 26 (b) 61 (c) 17 (d) 67
  19. 19.Which number is the odd one out: 31, 13, 99, 61? (a) 31 (b) 13 (c) 99 (d) 61
  20. 20.Which number is the odd one out: 56, 84, 25, 96? (a) 56 (b) 84 (c) 25 (d) 96
  21. 21.Which number is the odd one out: 52, 31, 53, 11? (a) 52 (b) 31 (c) 53 (d) 11
  22. 22.Which number is the odd one out: 10, 70, 98, 14? (a) 10 (b) 70 (c) 98 (d) 14
  23. 23.Which number is the odd one out: 11, 59, 45, 71? (a) 11 (b) 59 (c) 45 (d) 71
  24. 24.Which number is the odd one out: 48, 78, 24, 91? (a) 48 (b) 78 (c) 24 (d) 91
  25. 25.Which number is the odd one out: 42, 17, 47, 59? (a) 42 (b) 17 (c) 47 (d) 59
  26. 26.Which number is the odd one out: 71, 11, 66, 13? (a) 71 (b) 11 (c) 66 (d) 13
  27. 27.Which number is the odd one out: 71, 97, 69, 53? (a) 71 (b) 97 (c) 69 (d) 53
  28. 28.Which number is the odd one out: 33, 93, 70, 69? (a) 33 (b) 93 (c) 70 (d) 69
  29. 29.Which number is the odd one out: 64, 16, 10, 52? (a) 64 (b) 16 (c) 10 (d) 52
  30. 30.Which number is the odd one out: 59, 67, 47, 94? (a) 59 (b) 67 (c) 47 (d) 94
  31. 31.Which number is the odd one out: 3, 29, 84, 83? (a) 3 (b) 29 (c) 84 (d) 83
  32. 32.Which number is the odd one out: 73, 19, 23, 34? (a) 73 (b) 19 (c) 23 (d) 34
  33. 33.Which number is the odd one out: 74, 67, 13, 31? (a) 74 (b) 67 (c) 13 (d) 31
  34. 34.Which number is the odd one out: 96, 8, 48, 5? (a) 96 (b) 8 (c) 48 (d) 5
  35. 35.Which number is the odd one out: 88, 74, 29, 8? (a) 88 (b) 74 (c) 29 (d) 8
  36. 36.Which number is the odd one out: 67, 96, 76, 24? (a) 67 (b) 96 (c) 76 (d) 24
  37. 37.Which number is the odd one out: 13, 83, 45, 29? (a) 13 (b) 83 (c) 45 (d) 29
  38. 38.Which number is the odd one out: 92, 41, 2, 13? (a) 92 (b) 41 (c) 2 (d) 13
  39. 39.Which number is the odd one out: 45, 13, 29, 53? (a) 45 (b) 13 (c) 29 (d) 53
  40. 40.Which number is the odd one out: 13, 97, 14, 89? (a) 13 (b) 97 (c) 14 (d) 89

Answer key

  1. 13
  2. 45
  3. 96
  4. 85
  5. 20
  6. 28
  7. 77
  8. 99
  9. 77
  10. 7
  11. 10
  12. 14
  13. 54
  14. 21
  15. 78
  16. 86
  17. 28
  18. 26
  19. 99
  20. 25
  21. 52
  22. 10
  23. 45
  24. 91
  25. 42
  26. 66
  27. 69
  28. 70
  29. 10
  30. 94
  31. 84
  32. 34
  33. 74
  34. 5
  35. 29
  36. 67
  37. 45
  38. 92
  39. 45
  40. 14

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