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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 222 · 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, 23, 33, 61? (a) 97 (b) 23 (c) 33 (d) 61
  2. 2.Which number is the odd one out: 73, 31, 91, 11? (a) 73 (b) 31 (c) 91 (d) 11
  3. 3.Which number is the odd one out: 22, 71, 37, 17? (a) 22 (b) 71 (c) 37 (d) 17
  4. 4.Which number is the odd one out: 56, 70, 32, 8? (a) 56 (b) 70 (c) 32 (d) 8
  5. 5.Which number is the odd one out: 40, 32, 29, 80? (a) 40 (b) 32 (c) 29 (d) 80
  6. 6.Which number is the odd one out: 52, 92, 68, 54? (a) 52 (b) 92 (c) 68 (d) 54
  7. 7.Which number is the odd one out: 17, 19, 51, 61? (a) 17 (b) 19 (c) 51 (d) 61
  8. 8.Which number is the odd one out: 8, 68, 16, 25? (a) 8 (b) 68 (c) 16 (d) 25
  9. 9.Which number is the odd one out: 2, 13, 4, 53? (a) 2 (b) 13 (c) 4 (d) 53
  10. 10.Which number is the odd one out: 77, 7, 73, 89? (a) 77 (b) 7 (c) 73 (d) 89
  11. 11.Which number is the odd one out: 52, 73, 13, 41? (a) 52 (b) 73 (c) 13 (d) 41
  12. 12.Which number is the odd one out: 8, 40, 88, 20? (a) 8 (b) 40 (c) 88 (d) 20
  13. 13.Which number is the odd one out: 29, 13, 47, 91? (a) 29 (b) 13 (c) 47 (d) 91
  14. 14.Which number is the odd one out: 91, 89, 37, 43? (a) 91 (b) 89 (c) 37 (d) 43
  15. 15.Which number is the odd one out: 29, 73, 31, 16? (a) 29 (b) 73 (c) 31 (d) 16
  16. 16.Which number is the odd one out: 19, 89, 34, 67? (a) 19 (b) 89 (c) 34 (d) 67
  17. 17.Which number is the odd one out: 78, 16, 64, 8? (a) 78 (b) 16 (c) 64 (d) 8
  18. 18.Which number is the odd one out: 28, 21, 44, 92? (a) 28 (b) 21 (c) 44 (d) 92
  19. 19.Which number is the odd one out: 85, 58, 90, 54? (a) 85 (b) 58 (c) 90 (d) 54
  20. 20.Which number is the odd one out: 28, 84, 30, 14? (a) 28 (b) 84 (c) 30 (d) 14
  21. 21.Which number is the odd one out: 29, 24, 48, 32? (a) 29 (b) 24 (c) 48 (d) 32
  22. 22.Which number is the odd one out: 23, 17, 34, 13? (a) 23 (b) 17 (c) 34 (d) 13
  23. 23.Which number is the odd one out: 32, 88, 58, 8? (a) 32 (b) 88 (c) 58 (d) 8
  24. 24.Which number is the odd one out: 80, 13, 40, 55? (a) 80 (b) 13 (c) 40 (d) 55
  25. 25.Which number is the odd one out: 7, 71, 49, 73? (a) 7 (b) 71 (c) 49 (d) 73
  26. 26.Which number is the odd one out: 43, 96, 24, 32? (a) 43 (b) 96 (c) 24 (d) 32
  27. 27.Which number is the odd one out: 42, 30, 6, 35? (a) 42 (b) 30 (c) 6 (d) 35
  28. 28.Which number is the odd one out: 37, 14, 47, 43? (a) 37 (b) 14 (c) 47 (d) 43
  29. 29.Which number is the odd one out: 27, 76, 58, 92? (a) 27 (b) 76 (c) 58 (d) 92
  30. 30.Which number is the odd one out: 68, 44, 19, 82? (a) 68 (b) 44 (c) 19 (d) 82
  31. 31.Which number is the odd one out: 3, 29, 23, 27? (a) 3 (b) 29 (c) 23 (d) 27
  32. 32.Which number is the odd one out: 29, 83, 52, 47? (a) 29 (b) 83 (c) 52 (d) 47
  33. 33.Which number is the odd one out: 78, 66, 6, 77? (a) 78 (b) 66 (c) 6 (d) 77
  34. 34.Which number is the odd one out: 13, 89, 3, 39? (a) 13 (b) 89 (c) 3 (d) 39
  35. 35.Which number is the odd one out: 17, 55, 67, 23? (a) 17 (b) 55 (c) 67 (d) 23
  36. 36.Which number is the odd one out: 16, 37, 29, 47? (a) 16 (b) 37 (c) 29 (d) 47
  37. 37.Which number is the odd one out: 87, 43, 11, 19? (a) 87 (b) 43 (c) 11 (d) 19
  38. 38.Which number is the odd one out: 64, 79, 88, 16? (a) 64 (b) 79 (c) 88 (d) 16
  39. 39.Which number is the odd one out: 81, 33, 7, 9? (a) 81 (b) 33 (c) 7 (d) 9
  40. 40.Which number is the odd one out: 90, 53, 41, 2? (a) 90 (b) 53 (c) 41 (d) 2

Answer key

  1. 33
  2. 91
  3. 22
  4. 70
  5. 29
  6. 54
  7. 51
  8. 25
  9. 4
  10. 77
  11. 52
  12. 20
  13. 91
  14. 91
  15. 16
  16. 34
  17. 78
  18. 21
  19. 85
  20. 30
  21. 29
  22. 34
  23. 58
  24. 13
  25. 49
  26. 43
  27. 35
  28. 14
  29. 27
  30. 19
  31. 27
  32. 52
  33. 77
  34. 39
  35. 55
  36. 16
  37. 87
  38. 79
  39. 7
  40. 90

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