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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 602 · 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: 88, 86, 25, 8? (a) 88 (b) 86 (c) 25 (d) 8
  2. 2.Which number is the odd one out: 75, 5, 47, 54? (a) 75 (b) 5 (c) 47 (d) 54
  3. 3.Which number is the odd one out: 70, 40, 8, 52? (a) 70 (b) 40 (c) 8 (d) 52
  4. 4.Which number is the odd one out: 61, 97, 31, 68? (a) 61 (b) 97 (c) 31 (d) 68
  5. 5.Which number is the odd one out: 77, 66, 98, 21? (a) 77 (b) 66 (c) 98 (d) 21
  6. 6.Which number is the odd one out: 41, 36, 97, 11? (a) 41 (b) 36 (c) 97 (d) 11
  7. 7.Which number is the odd one out: 32, 91, 80, 40? (a) 32 (b) 91 (c) 80 (d) 40
  8. 8.Which number is the odd one out: 80, 97, 40, 52? (a) 80 (b) 97 (c) 40 (d) 52
  9. 9.Which number is the odd one out: 88, 6, 80, 40? (a) 88 (b) 6 (c) 80 (d) 40
  10. 10.Which number is the odd one out: 20, 59, 11, 2? (a) 20 (b) 59 (c) 11 (d) 2
  11. 11.Which number is the odd one out: 27, 29, 31, 11? (a) 27 (b) 29 (c) 31 (d) 11
  12. 12.Which number is the odd one out: 77, 72, 28, 21? (a) 77 (b) 72 (c) 28 (d) 21
  13. 13.Which number is the odd one out: 3, 59, 82, 57? (a) 3 (b) 59 (c) 82 (d) 57
  14. 14.Which number is the odd one out: 60, 13, 79, 57? (a) 60 (b) 13 (c) 79 (d) 57
  15. 15.Which number is the odd one out: 61, 71, 17, 94? (a) 61 (b) 71 (c) 17 (d) 94
  16. 16.Which number is the odd one out: 24, 96, 14, 32? (a) 24 (b) 96 (c) 14 (d) 32
  17. 17.Which number is the odd one out: 13, 64, 47, 11? (a) 13 (b) 64 (c) 47 (d) 11
  18. 18.Which number is the odd one out: 56, 48, 70, 12? (a) 56 (b) 48 (c) 70 (d) 12
  19. 19.Which number is the odd one out: 98, 11, 89, 2? (a) 98 (b) 11 (c) 89 (d) 2
  20. 20.Which number is the odd one out: 32, 48, 24, 26? (a) 32 (b) 48 (c) 24 (d) 26
  21. 21.Which number is the odd one out: 41, 69, 59, 13? (a) 41 (b) 69 (c) 59 (d) 13
  22. 22.Which number is the odd one out: 89, 94, 19, 47? (a) 89 (b) 94 (c) 19 (d) 47
  23. 23.Which number is the odd one out: 36, 15, 95, 25? (a) 36 (b) 15 (c) 95 (d) 25
  24. 24.Which number is the odd one out: 59, 23, 47, 27? (a) 59 (b) 23 (c) 47 (d) 27
  25. 25.Which number is the odd one out: 80, 54, 40, 88? (a) 80 (b) 54 (c) 40 (d) 88
  26. 26.Which number is the odd one out: 18, 66, 45, 6? (a) 18 (b) 66 (c) 45 (d) 6
  27. 27.Which number is the odd one out: 54, 19, 89, 17? (a) 54 (b) 19 (c) 89 (d) 17
  28. 28.Which number is the odd one out: 54, 21, 18, 78? (a) 54 (b) 21 (c) 18 (d) 78
  29. 29.Which number is the odd one out: 43, 35, 59, 23? (a) 43 (b) 35 (c) 59 (d) 23
  30. 30.Which number is the odd one out: 19, 2, 16, 59? (a) 19 (b) 2 (c) 16 (d) 59
  31. 31.Which number is the odd one out: 47, 43, 23, 9? (a) 47 (b) 43 (c) 23 (d) 9
  32. 32.Which number is the odd one out: 11, 53, 61, 21? (a) 11 (b) 53 (c) 61 (d) 21
  33. 33.Which number is the odd one out: 17, 28, 11, 73? (a) 17 (b) 28 (c) 11 (d) 73
  34. 34.Which number is the odd one out: 76, 73, 79, 17? (a) 76 (b) 73 (c) 79 (d) 17
  35. 35.Which number is the odd one out: 92, 31, 71, 13? (a) 92 (b) 31 (c) 71 (d) 13
  36. 36.Which number is the odd one out: 30, 41, 3, 29? (a) 30 (b) 41 (c) 3 (d) 29
  37. 37.Which number is the odd one out: 67, 88, 73, 53? (a) 67 (b) 88 (c) 73 (d) 53
  38. 38.Which number is the odd one out: 97, 24, 83, 73? (a) 97 (b) 24 (c) 83 (d) 73
  39. 39.Which number is the odd one out: 71, 48, 59, 67? (a) 71 (b) 48 (c) 59 (d) 67
  40. 40.Which number is the odd one out: 71, 73, 67, 26? (a) 71 (b) 73 (c) 67 (d) 26

Answer key

  1. 25
  2. 54
  3. 70
  4. 68
  5. 66
  6. 36
  7. 91
  8. 97
  9. 6
  10. 20
  11. 27
  12. 72
  13. 82
  14. 60
  15. 94
  16. 14
  17. 64
  18. 70
  19. 98
  20. 26
  21. 69
  22. 94
  23. 36
  24. 27
  25. 54
  26. 45
  27. 54
  28. 21
  29. 35
  30. 16
  31. 9
  32. 21
  33. 28
  34. 76
  35. 92
  36. 30
  37. 88
  38. 24
  39. 48
  40. 26

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