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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 150 · 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: 8, 33, 32, 88? (a) 8 (b) 33 (c) 32 (d) 88
  2. 2.Which number is the odd one out: 83, 41, 37, 77? (a) 83 (b) 41 (c) 37 (d) 77
  3. 3.Which number is the odd one out: 73, 53, 63, 3? (a) 73 (b) 53 (c) 63 (d) 3
  4. 4.Which number is the odd one out: 30, 45, 15, 54? (a) 30 (b) 45 (c) 15 (d) 54
  5. 5.Which number is the odd one out: 19, 67, 91, 61? (a) 19 (b) 67 (c) 91 (d) 61
  6. 6.Which number is the odd one out: 16, 18, 64, 24? (a) 16 (b) 18 (c) 64 (d) 24
  7. 7.Which number is the odd one out: 67, 82, 31, 19? (a) 67 (b) 82 (c) 31 (d) 19
  8. 8.Which number is the odd one out: 14, 17, 31, 2? (a) 14 (b) 17 (c) 31 (d) 2
  9. 9.Which number is the odd one out: 41, 2, 43, 62? (a) 41 (b) 2 (c) 43 (d) 62
  10. 10.Which number is the odd one out: 26, 16, 64, 32? (a) 26 (b) 16 (c) 64 (d) 32
  11. 11.Which number is the odd one out: 64, 99, 4, 16? (a) 64 (b) 99 (c) 4 (d) 16
  12. 12.Which number is the odd one out: 27, 13, 54, 18? (a) 27 (b) 13 (c) 54 (d) 18
  13. 13.Which number is the odd one out: 20, 31, 55, 23? (a) 20 (b) 31 (c) 55 (d) 23
  14. 14.Which number is the odd one out: 2, 70, 35, 7? (a) 2 (b) 70 (c) 35 (d) 7
  15. 15.Which number is the odd one out: 28, 6, 23, 84? (a) 28 (b) 6 (c) 23 (d) 84
  16. 16.Which number is the odd one out: 42, 59, 79, 31? (a) 42 (b) 59 (c) 79 (d) 31
  17. 17.Which number is the odd one out: 47, 11, 61, 91? (a) 47 (b) 11 (c) 61 (d) 91
  18. 18.Which number is the odd one out: 91, 50, 70, 77? (a) 91 (b) 50 (c) 70 (d) 77
  19. 19.Which number is the odd one out: 96, 50, 24, 32? (a) 96 (b) 50 (c) 24 (d) 32
  20. 20.Which number is the odd one out: 7, 5, 53, 35? (a) 7 (b) 5 (c) 53 (d) 35
  21. 21.Which number is the odd one out: 11, 17, 14, 53? (a) 11 (b) 17 (c) 14 (d) 53
  22. 22.Which number is the odd one out: 15, 56, 98, 8? (a) 15 (b) 56 (c) 98 (d) 8
  23. 23.Which number is the odd one out: 29, 8, 47, 71? (a) 29 (b) 8 (c) 47 (d) 71
  24. 24.Which number is the odd one out: 71, 17, 86, 53? (a) 71 (b) 17 (c) 86 (d) 53
  25. 25.Which number is the odd one out: 79, 23, 72, 37? (a) 79 (b) 23 (c) 72 (d) 37
  26. 26.Which number is the odd one out: 99, 59, 31, 23? (a) 99 (b) 59 (c) 31 (d) 23
  27. 27.Which number is the odd one out: 15, 69, 80, 87? (a) 15 (b) 69 (c) 80 (d) 87
  28. 28.Which number is the odd one out: 99, 48, 66, 72? (a) 99 (b) 48 (c) 66 (d) 72
  29. 29.Which number is the odd one out: 89, 97, 94, 67? (a) 89 (b) 97 (c) 94 (d) 67
  30. 30.Which number is the odd one out: 31, 71, 83, 12? (a) 31 (b) 71 (c) 83 (d) 12
  31. 31.Which number is the odd one out: 98, 35, 26, 10? (a) 98 (b) 35 (c) 26 (d) 10
  32. 32.Which number is the odd one out: 23, 61, 70, 59? (a) 23 (b) 61 (c) 70 (d) 59
  33. 33.Which number is the odd one out: 6, 32, 8, 88? (a) 6 (b) 32 (c) 8 (d) 88
  34. 34.Which number is the odd one out: 52, 9, 44, 68? (a) 52 (b) 9 (c) 44 (d) 68
  35. 35.Which number is the odd one out: 97, 80, 89, 29? (a) 97 (b) 80 (c) 89 (d) 29
  36. 36.Which number is the odd one out: 53, 67, 29, 58? (a) 53 (b) 67 (c) 29 (d) 58
  37. 37.Which number is the odd one out: 53, 97, 59, 45? (a) 53 (b) 97 (c) 59 (d) 45
  38. 38.Which number is the odd one out: 98, 14, 33, 82? (a) 98 (b) 14 (c) 33 (d) 82
  39. 39.Which number is the odd one out: 21, 83, 29, 43? (a) 21 (b) 83 (c) 29 (d) 43
  40. 40.Which number is the odd one out: 41, 53, 64, 59? (a) 41 (b) 53 (c) 64 (d) 59

Answer key

  1. 33
  2. 77
  3. 63
  4. 54
  5. 91
  6. 18
  7. 82
  8. 14
  9. 62
  10. 26
  11. 99
  12. 13
  13. 20
  14. 2
  15. 23
  16. 42
  17. 91
  18. 50
  19. 50
  20. 35
  21. 14
  22. 15
  23. 8
  24. 86
  25. 72
  26. 99
  27. 80
  28. 99
  29. 94
  30. 12
  31. 35
  32. 70
  33. 6
  34. 9
  35. 80
  36. 58
  37. 45
  38. 33
  39. 21
  40. 64

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