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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 942 · 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: 54, 98, 18, 6? (a) 54 (b) 98 (c) 18 (d) 6
  2. 2.Which number is the odd one out: 17, 72, 3, 29? (a) 17 (b) 72 (c) 3 (d) 29
  3. 3.Which number is the odd one out: 19, 91, 67, 13? (a) 19 (b) 91 (c) 67 (d) 13
  4. 4.Which number is the odd one out: 61, 25, 5, 23? (a) 61 (b) 25 (c) 5 (d) 23
  5. 5.Which number is the odd one out: 90, 18, 54, 60? (a) 90 (b) 18 (c) 54 (d) 60
  6. 6.Which number is the odd one out: 47, 16, 53, 31? (a) 47 (b) 16 (c) 53 (d) 31
  7. 7.Which number is the odd one out: 64, 86, 88, 16? (a) 64 (b) 86 (c) 88 (d) 16
  8. 8.Which number is the odd one out: 65, 40, 88, 95? (a) 65 (b) 40 (c) 88 (d) 95
  9. 9.Which number is the odd one out: 62, 67, 73, 79? (a) 62 (b) 67 (c) 73 (d) 79
  10. 10.Which number is the odd one out: 11, 83, 89, 87? (a) 11 (b) 83 (c) 89 (d) 87
  11. 11.Which number is the odd one out: 35, 56, 64, 16? (a) 35 (b) 56 (c) 64 (d) 16
  12. 12.Which number is the odd one out: 22, 2, 86, 41? (a) 22 (b) 2 (c) 86 (d) 41
  13. 13.Which number is the odd one out: 98, 7, 73, 79? (a) 98 (b) 7 (c) 73 (d) 79
  14. 14.Which number is the odd one out: 9, 17, 53, 61? (a) 9 (b) 17 (c) 53 (d) 61
  15. 15.Which number is the odd one out: 5, 30, 17, 43? (a) 5 (b) 30 (c) 17 (d) 43
  16. 16.Which number is the odd one out: 32, 9, 64, 81? (a) 32 (b) 9 (c) 64 (d) 81
  17. 17.Which number is the odd one out: 80, 60, 24, 12? (a) 80 (b) 60 (c) 24 (d) 12
  18. 18.Which number is the odd one out: 52, 4, 81, 9? (a) 52 (b) 4 (c) 81 (d) 9
  19. 19.Which number is the odd one out: 18, 15, 48, 72? (a) 18 (b) 15 (c) 48 (d) 72
  20. 20.Which number is the odd one out: 99, 41, 37, 17? (a) 99 (b) 41 (c) 37 (d) 17
  21. 21.Which number is the odd one out: 18, 71, 59, 57? (a) 18 (b) 71 (c) 59 (d) 57
  22. 22.Which number is the odd one out: 30, 18, 90, 74? (a) 30 (b) 18 (c) 90 (d) 74
  23. 23.Which number is the odd one out: 96, 24, 76, 59? (a) 96 (b) 24 (c) 76 (d) 59
  24. 24.Which number is the odd one out: 5, 97, 45, 61? (a) 5 (b) 97 (c) 45 (d) 61
  25. 25.Which number is the odd one out: 67, 68, 2, 43? (a) 67 (b) 68 (c) 2 (d) 43
  26. 26.Which number is the odd one out: 41, 71, 19, 45? (a) 41 (b) 71 (c) 19 (d) 45
  27. 27.Which number is the odd one out: 17, 13, 44, 2? (a) 17 (b) 13 (c) 44 (d) 2
  28. 28.Which number is the odd one out: 67, 29, 66, 71? (a) 67 (b) 29 (c) 66 (d) 71
  29. 29.Which number is the odd one out: 64, 16, 32, 29? (a) 64 (b) 16 (c) 32 (d) 29
  30. 30.Which number is the odd one out: 96, 48, 7, 32? (a) 96 (b) 48 (c) 7 (d) 32
  31. 31.Which number is the odd one out: 85, 72, 48, 18? (a) 85 (b) 72 (c) 48 (d) 18
  32. 32.Which number is the odd one out: 61, 77, 67, 7? (a) 61 (b) 77 (c) 67 (d) 7
  33. 33.Which number is the odd one out: 82, 31, 59, 37? (a) 82 (b) 31 (c) 59 (d) 37
  34. 34.Which number is the odd one out: 82, 73, 79, 29? (a) 82 (b) 73 (c) 79 (d) 29
  35. 35.Which number is the odd one out: 11, 79, 37, 16? (a) 11 (b) 79 (c) 37 (d) 16
  36. 36.Which number is the odd one out: 4, 48, 24, 96? (a) 4 (b) 48 (c) 24 (d) 96
  37. 37.Which number is the odd one out: 89, 45, 19, 41? (a) 89 (b) 45 (c) 19 (d) 41
  38. 38.Which number is the odd one out: 11, 52, 19, 17? (a) 11 (b) 52 (c) 19 (d) 17
  39. 39.Which number is the odd one out: 5, 24, 31, 65? (a) 5 (b) 24 (c) 31 (d) 65
  40. 40.Which number is the odd one out: 37, 79, 94, 71? (a) 37 (b) 79 (c) 94 (d) 71

Answer key

  1. 98
  2. 72
  3. 91
  4. 25
  5. 60
  6. 16
  7. 86
  8. 88
  9. 62
  10. 87
  11. 35
  12. 41
  13. 98
  14. 9
  15. 30
  16. 32
  17. 80
  18. 52
  19. 15
  20. 99
  21. 18
  22. 74
  23. 59
  24. 45
  25. 68
  26. 45
  27. 44
  28. 66
  29. 29
  30. 7
  31. 85
  32. 77
  33. 82
  34. 82
  35. 16
  36. 4
  37. 45
  38. 52
  39. 24
  40. 94

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