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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 550 · 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: 2, 67, 17, 64? (a) 2 (b) 67 (c) 17 (d) 64
  2. 2.Which number is the odd one out: 97, 33, 17, 37? (a) 97 (b) 33 (c) 17 (d) 37
  3. 3.Which number is the odd one out: 40, 22, 80, 10? (a) 40 (b) 22 (c) 80 (d) 10
  4. 4.Which number is the odd one out: 64, 10, 4, 16? (a) 64 (b) 10 (c) 4 (d) 16
  5. 5.Which number is the odd one out: 79, 69, 29, 6? (a) 79 (b) 69 (c) 29 (d) 6
  6. 6.Which number is the odd one out: 89, 19, 13, 27? (a) 89 (b) 19 (c) 13 (d) 27
  7. 7.Which number is the odd one out: 32, 24, 8, 18? (a) 32 (b) 24 (c) 8 (d) 18
  8. 8.Which number is the odd one out: 71, 31, 61, 86? (a) 71 (b) 31 (c) 61 (d) 86
  9. 9.Which number is the odd one out: 71, 29, 55, 30? (a) 71 (b) 29 (c) 55 (d) 30
  10. 10.Which number is the odd one out: 89, 17, 26, 13? (a) 89 (b) 17 (c) 26 (d) 13
  11. 11.Which number is the odd one out: 3, 60, 37, 29? (a) 3 (b) 60 (c) 37 (d) 29
  12. 12.Which number is the odd one out: 19, 11, 71, 68? (a) 19 (b) 11 (c) 71 (d) 68
  13. 13.Which number is the odd one out: 13, 11, 23, 69? (a) 13 (b) 11 (c) 23 (d) 69
  14. 14.Which number is the odd one out: 41, 31, 82, 23? (a) 41 (b) 31 (c) 82 (d) 23
  15. 15.Which number is the odd one out: 44, 59, 76, 92? (a) 44 (b) 59 (c) 76 (d) 92
  16. 16.Which number is the odd one out: 25, 18, 60, 36? (a) 25 (b) 18 (c) 60 (d) 36
  17. 17.Which number is the odd one out: 13, 59, 98, 71? (a) 13 (b) 59 (c) 98 (d) 71
  18. 18.Which number is the odd one out: 19, 12, 97, 61? (a) 19 (b) 12 (c) 97 (d) 61
  19. 19.Which number is the odd one out: 97, 67, 56, 73? (a) 97 (b) 67 (c) 56 (d) 73
  20. 20.Which number is the odd one out: 54, 4, 60, 90? (a) 54 (b) 4 (c) 60 (d) 90
  21. 21.Which number is the odd one out: 55, 86, 10, 95? (a) 55 (b) 86 (c) 10 (d) 95
  22. 22.Which number is the odd one out: 3, 54, 23, 73? (a) 3 (b) 54 (c) 23 (d) 73
  23. 23.Which number is the odd one out: 56, 96, 66, 78? (a) 56 (b) 96 (c) 66 (d) 78
  24. 24.Which number is the odd one out: 67, 53, 2, 70? (a) 67 (b) 53 (c) 2 (d) 70
  25. 25.Which number is the odd one out: 61, 71, 4, 19? (a) 61 (b) 71 (c) 4 (d) 19
  26. 26.Which number is the odd one out: 70, 61, 11, 97? (a) 70 (b) 61 (c) 11 (d) 97
  27. 27.Which number is the odd one out: 93, 53, 83, 61? (a) 93 (b) 53 (c) 83 (d) 61
  28. 28.Which number is the odd one out: 74, 41, 43, 53? (a) 74 (b) 41 (c) 43 (d) 53
  29. 29.Which number is the odd one out: 19, 2, 83, 70? (a) 19 (b) 2 (c) 83 (d) 70
  30. 30.Which number is the odd one out: 61, 79, 44, 37? (a) 61 (b) 79 (c) 44 (d) 37
  31. 31.Which number is the odd one out: 83, 19, 97, 51? (a) 83 (b) 19 (c) 97 (d) 51
  32. 32.Which number is the odd one out: 2, 10, 85, 55? (a) 2 (b) 10 (c) 85 (d) 55
  33. 33.Which number is the odd one out: 84, 67, 17, 71? (a) 84 (b) 67 (c) 17 (d) 71
  34. 34.Which number is the odd one out: 61, 96, 93, 29? (a) 61 (b) 96 (c) 93 (d) 29
  35. 35.Which number is the odd one out: 97, 16, 17, 61? (a) 97 (b) 16 (c) 17 (d) 61
  36. 36.Which number is the odd one out: 77, 22, 32, 8? (a) 77 (b) 22 (c) 32 (d) 8
  37. 37.Which number is the odd one out: 23, 2, 82, 41? (a) 23 (b) 2 (c) 82 (d) 41
  38. 38.Which number is the odd one out: 68, 97, 41, 59? (a) 68 (b) 97 (c) 41 (d) 59
  39. 39.Which number is the odd one out: 54, 49, 18, 87? (a) 54 (b) 49 (c) 18 (d) 87
  40. 40.Which number is the odd one out: 17, 68, 11, 79? (a) 17 (b) 68 (c) 11 (d) 79

Answer key

  1. 64
  2. 33
  3. 22
  4. 10
  5. 6
  6. 27
  7. 18
  8. 86
  9. 30
  10. 26
  11. 60
  12. 68
  13. 69
  14. 82
  15. 59
  16. 25
  17. 98
  18. 12
  19. 56
  20. 4
  21. 86
  22. 54
  23. 56
  24. 70
  25. 4
  26. 70
  27. 93
  28. 74
  29. 70
  30. 44
  31. 51
  32. 2
  33. 84
  34. 96
  35. 16
  36. 77
  37. 82
  38. 68
  39. 49
  40. 68

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