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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 107 · 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: 97, 73, 90, 17? (a) 97 (b) 73 (c) 90 (d) 17
  2. 2.Which number is the odd one out: 43, 11, 6, 53? (a) 43 (b) 11 (c) 6 (d) 53
  3. 3.Which number is the odd one out: 13, 79, 76, 67? (a) 13 (b) 79 (c) 76 (d) 67
  4. 4.Which number is the odd one out: 13, 50, 41, 23? (a) 13 (b) 50 (c) 41 (d) 23
  5. 5.Which number is the odd one out: 24, 85, 15, 95? (a) 24 (b) 85 (c) 15 (d) 95
  6. 6.Which number is the odd one out: 47, 41, 31, 86? (a) 47 (b) 41 (c) 31 (d) 86
  7. 7.Which number is the odd one out: 11, 31, 53, 85? (a) 11 (b) 31 (c) 53 (d) 85
  8. 8.Which number is the odd one out: 96, 66, 24, 82? (a) 96 (b) 66 (c) 24 (d) 82
  9. 9.Which number is the odd one out: 22, 58, 79, 26? (a) 22 (b) 58 (c) 79 (d) 26
  10. 10.Which number is the odd one out: 76, 85, 94, 44? (a) 76 (b) 85 (c) 94 (d) 44
  11. 11.Which number is the odd one out: 72, 17, 47, 57? (a) 72 (b) 17 (c) 47 (d) 57
  12. 12.Which number is the odd one out: 10, 31, 5, 2? (a) 10 (b) 31 (c) 5 (d) 2
  13. 13.Which number is the odd one out: 37, 11, 78, 13? (a) 37 (b) 11 (c) 78 (d) 13
  14. 14.Which number is the odd one out: 13, 82, 59, 43? (a) 13 (b) 82 (c) 59 (d) 43
  15. 15.Which number is the odd one out: 4, 64, 52, 16? (a) 4 (b) 64 (c) 52 (d) 16
  16. 16.Which number is the odd one out: 35, 98, 95, 65? (a) 35 (b) 98 (c) 95 (d) 65
  17. 17.Which number is the odd one out: 97, 41, 91, 37? (a) 97 (b) 41 (c) 91 (d) 37
  18. 18.Which number is the odd one out: 55, 68, 96, 48? (a) 55 (b) 68 (c) 96 (d) 48
  19. 19.Which number is the odd one out: 54, 78, 27, 19? (a) 54 (b) 78 (c) 27 (d) 19
  20. 20.Which number is the odd one out: 67, 80, 79, 2? (a) 67 (b) 80 (c) 79 (d) 2
  21. 21.Which number is the odd one out: 29, 19, 26, 37? (a) 29 (b) 19 (c) 26 (d) 37
  22. 22.Which number is the odd one out: 69, 53, 36, 89? (a) 69 (b) 53 (c) 36 (d) 89
  23. 23.Which number is the odd one out: 7, 42, 53, 19? (a) 7 (b) 42 (c) 53 (d) 19
  24. 24.Which number is the odd one out: 89, 47, 12, 17? (a) 89 (b) 47 (c) 12 (d) 17
  25. 25.Which number is the odd one out: 2, 79, 14, 17? (a) 2 (b) 79 (c) 14 (d) 17
  26. 26.Which number is the odd one out: 29, 53, 20, 31? (a) 29 (b) 53 (c) 20 (d) 31
  27. 27.Which number is the odd one out: 54, 59, 27, 18? (a) 54 (b) 59 (c) 27 (d) 18
  28. 28.Which number is the odd one out: 23, 71, 41, 4? (a) 23 (b) 71 (c) 41 (d) 4
  29. 29.Which number is the odd one out: 42, 25, 21, 6? (a) 42 (b) 25 (c) 21 (d) 6
  30. 30.Which number is the odd one out: 5, 16, 64, 32? (a) 5 (b) 16 (c) 64 (d) 32
  31. 31.Which number is the odd one out: 48, 41, 17, 67? (a) 48 (b) 41 (c) 17 (d) 67
  32. 32.Which number is the odd one out: 82, 9, 81, 27? (a) 82 (b) 9 (c) 81 (d) 27
  33. 33.Which number is the odd one out: 66, 38, 24, 96? (a) 66 (b) 38 (c) 24 (d) 96
  34. 34.Which number is the odd one out: 19, 7, 21, 48? (a) 19 (b) 7 (c) 21 (d) 48
  35. 35.Which number is the odd one out: 70, 32, 80, 44? (a) 70 (b) 32 (c) 80 (d) 44
  36. 36.Which number is the odd one out: 20, 95, 85, 48? (a) 20 (b) 95 (c) 85 (d) 48
  37. 37.Which number is the odd one out: 61, 91, 73, 41? (a) 61 (b) 91 (c) 73 (d) 41
  38. 38.Which number is the odd one out: 31, 67, 43, 66? (a) 31 (b) 67 (c) 43 (d) 66
  39. 39.Which number is the odd one out: 37, 13, 58, 73? (a) 37 (b) 13 (c) 58 (d) 73
  40. 40.Which number is the odd one out: 71, 53, 76, 17? (a) 71 (b) 53 (c) 76 (d) 17

Answer key

  1. 90
  2. 6
  3. 76
  4. 50
  5. 24
  6. 86
  7. 85
  8. 82
  9. 79
  10. 85
  11. 72
  12. 10
  13. 78
  14. 82
  15. 52
  16. 98
  17. 91
  18. 55
  19. 19
  20. 80
  21. 26
  22. 36
  23. 42
  24. 12
  25. 14
  26. 20
  27. 59
  28. 4
  29. 25
  30. 5
  31. 48
  32. 82
  33. 38
  34. 48
  35. 70
  36. 48
  37. 91
  38. 66
  39. 58
  40. 76

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