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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 443 · 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: 53, 59, 19, 9? (a) 53 (b) 59 (c) 19 (d) 9
  2. 2.Which number is the odd one out: 8, 67, 53, 41? (a) 8 (b) 67 (c) 53 (d) 41
  3. 3.Which number is the odd one out: 61, 83, 26, 73? (a) 61 (b) 83 (c) 26 (d) 73
  4. 4.Which number is the odd one out: 44, 88, 8, 70? (a) 44 (b) 88 (c) 8 (d) 70
  5. 5.Which number is the odd one out: 89, 97, 53, 56? (a) 89 (b) 97 (c) 53 (d) 56
  6. 6.Which number is the odd one out: 93, 3, 19, 89? (a) 93 (b) 3 (c) 19 (d) 89
  7. 7.Which number is the odd one out: 90, 19, 53, 5? (a) 90 (b) 19 (c) 53 (d) 5
  8. 8.Which number is the odd one out: 97, 83, 64, 13? (a) 97 (b) 83 (c) 64 (d) 13
  9. 9.Which number is the odd one out: 67, 20, 79, 73? (a) 67 (b) 20 (c) 79 (d) 73
  10. 10.Which number is the odd one out: 38, 47, 17, 71? (a) 38 (b) 47 (c) 17 (d) 71
  11. 11.Which number is the odd one out: 2, 18, 67, 79? (a) 2 (b) 18 (c) 67 (d) 79
  12. 12.Which number is the odd one out: 42, 6, 14, 73? (a) 42 (b) 6 (c) 14 (d) 73
  13. 13.Which number is the odd one out: 41, 15, 37, 11? (a) 41 (b) 15 (c) 37 (d) 11
  14. 14.Which number is the odd one out: 13, 29, 27, 11? (a) 13 (b) 29 (c) 27 (d) 11
  15. 15.Which number is the odd one out: 71, 59, 61, 38? (a) 71 (b) 59 (c) 61 (d) 38
  16. 16.Which number is the odd one out: 31, 61, 8, 53? (a) 31 (b) 61 (c) 8 (d) 53
  17. 17.Which number is the odd one out: 80, 89, 13, 61? (a) 80 (b) 89 (c) 13 (d) 61
  18. 18.Which number is the odd one out: 71, 18, 97, 31? (a) 71 (b) 18 (c) 97 (d) 31
  19. 19.Which number is the odd one out: 17, 40, 67, 37? (a) 17 (b) 40 (c) 67 (d) 37
  20. 20.Which number is the odd one out: 75, 17, 41, 73? (a) 75 (b) 17 (c) 41 (d) 73
  21. 21.Which number is the odd one out: 3, 59, 97, 42? (a) 3 (b) 59 (c) 97 (d) 42
  22. 22.Which number is the odd one out: 39, 19, 53, 61? (a) 39 (b) 19 (c) 53 (d) 61
  23. 23.Which number is the odd one out: 26, 46, 27, 82? (a) 26 (b) 46 (c) 27 (d) 82
  24. 24.Which number is the odd one out: 29, 2, 50, 53? (a) 29 (b) 2 (c) 50 (d) 53
  25. 25.Which number is the odd one out: 2, 67, 19, 30? (a) 2 (b) 67 (c) 19 (d) 30
  26. 26.Which number is the odd one out: 18, 71, 13, 59? (a) 18 (b) 71 (c) 13 (d) 59
  27. 27.Which number is the odd one out: 19, 47, 63, 7? (a) 19 (b) 47 (c) 63 (d) 7
  28. 28.Which number is the odd one out: 85, 18, 54, 6? (a) 85 (b) 18 (c) 54 (d) 6
  29. 29.Which number is the odd one out: 82, 97, 73, 23? (a) 82 (b) 97 (c) 73 (d) 23
  30. 30.Which number is the odd one out: 13, 84, 24, 56? (a) 13 (b) 84 (c) 24 (d) 56
  31. 31.Which number is the odd one out: 97, 89, 91, 47? (a) 97 (b) 89 (c) 91 (d) 47
  32. 32.Which number is the odd one out: 58, 17, 97, 73? (a) 58 (b) 17 (c) 97 (d) 73
  33. 33.Which number is the odd one out: 70, 27, 63, 45? (a) 70 (b) 27 (c) 63 (d) 45
  34. 34.Which number is the odd one out: 40, 30, 24, 8? (a) 40 (b) 30 (c) 24 (d) 8
  35. 35.Which number is the odd one out: 73, 72, 51, 23? (a) 73 (b) 72 (c) 51 (d) 23
  36. 36.Which number is the odd one out: 69, 53, 73, 3? (a) 69 (b) 53 (c) 73 (d) 3
  37. 37.Which number is the odd one out: 7, 27, 63, 99? (a) 7 (b) 27 (c) 63 (d) 99
  38. 38.Which number is the odd one out: 2, 61, 37, 76? (a) 2 (b) 61 (c) 37 (d) 76
  39. 39.Which number is the odd one out: 40, 9, 80, 16? (a) 40 (b) 9 (c) 80 (d) 16
  40. 40.Which number is the odd one out: 53, 17, 21, 67? (a) 53 (b) 17 (c) 21 (d) 67

Answer key

  1. 9
  2. 8
  3. 26
  4. 70
  5. 56
  6. 93
  7. 90
  8. 64
  9. 20
  10. 38
  11. 18
  12. 73
  13. 15
  14. 27
  15. 38
  16. 8
  17. 80
  18. 18
  19. 40
  20. 75
  21. 42
  22. 39
  23. 27
  24. 50
  25. 30
  26. 18
  27. 63
  28. 85
  29. 82
  30. 13
  31. 91
  32. 58
  33. 70
  34. 30
  35. 72
  36. 69
  37. 7
  38. 76
  39. 9
  40. 21

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