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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 36 · 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: 23, 83, 92, 47? (a) 23 (b) 83 (c) 92 (d) 47
  2. 2.Which number is the odd one out: 16, 64, 2, 88? (a) 16 (b) 64 (c) 2 (d) 88
  3. 3.Which number is the odd one out: 4, 34, 64, 16? (a) 4 (b) 34 (c) 64 (d) 16
  4. 4.Which number is the odd one out: 59, 11, 43, 91? (a) 59 (b) 11 (c) 43 (d) 91
  5. 5.Which number is the odd one out: 83, 56, 67, 59? (a) 83 (b) 56 (c) 67 (d) 59
  6. 6.Which number is the odd one out: 20, 97, 23, 5? (a) 20 (b) 97 (c) 23 (d) 5
  7. 7.Which number is the odd one out: 21, 16, 64, 76? (a) 21 (b) 16 (c) 64 (d) 76
  8. 8.Which number is the odd one out: 79, 19, 87, 67? (a) 79 (b) 19 (c) 87 (d) 67
  9. 9.Which number is the odd one out: 72, 99, 96, 43? (a) 72 (b) 99 (c) 96 (d) 43
  10. 10.Which number is the odd one out: 80, 40, 32, 29? (a) 80 (b) 40 (c) 32 (d) 29
  11. 11.Which number is the odd one out: 19, 59, 38, 83? (a) 19 (b) 59 (c) 38 (d) 83
  12. 12.Which number is the odd one out: 95, 61, 29, 11? (a) 95 (b) 61 (c) 29 (d) 11
  13. 13.Which number is the odd one out: 37, 73, 72, 59? (a) 37 (b) 73 (c) 72 (d) 59
  14. 14.Which number is the odd one out: 12, 78, 64, 6? (a) 12 (b) 78 (c) 64 (d) 6
  15. 15.Which number is the odd one out: 21, 3, 19, 37? (a) 21 (b) 3 (c) 19 (d) 37
  16. 16.Which number is the odd one out: 29, 89, 82, 31? (a) 29 (b) 89 (c) 82 (d) 31
  17. 17.Which number is the odd one out: 81, 99, 20, 9? (a) 81 (b) 99 (c) 20 (d) 9
  18. 18.Which number is the odd one out: 53, 31, 97, 27? (a) 53 (b) 31 (c) 97 (d) 27
  19. 19.Which number is the odd one out: 32, 40, 30, 96? (a) 32 (b) 40 (c) 30 (d) 96
  20. 20.Which number is the odd one out: 17, 48, 24, 78? (a) 17 (b) 48 (c) 24 (d) 78
  21. 21.Which number is the odd one out: 22, 17, 73, 61? (a) 22 (b) 17 (c) 73 (d) 61
  22. 22.Which number is the odd one out: 4, 64, 16, 26? (a) 4 (b) 64 (c) 16 (d) 26
  23. 23.Which number is the odd one out: 8, 64, 16, 89? (a) 8 (b) 64 (c) 16 (d) 89
  24. 24.Which number is the odd one out: 90, 8, 80, 88? (a) 90 (b) 8 (c) 80 (d) 88
  25. 25.Which number is the odd one out: 97, 73, 75, 89? (a) 97 (b) 73 (c) 75 (d) 89
  26. 26.Which number is the odd one out: 8, 92, 32, 88? (a) 8 (b) 92 (c) 32 (d) 88
  27. 27.Which number is the odd one out: 2, 41, 71, 17? (a) 2 (b) 41 (c) 71 (d) 17
  28. 28.Which number is the odd one out: 60, 89, 83, 3? (a) 60 (b) 89 (c) 83 (d) 3
  29. 29.Which number is the odd one out: 47, 17, 83, 12? (a) 47 (b) 17 (c) 83 (d) 12
  30. 30.Which number is the odd one out: 37, 65, 53, 13? (a) 37 (b) 65 (c) 53 (d) 13
  31. 31.Which number is the odd one out: 13, 95, 17, 61? (a) 13 (b) 95 (c) 17 (d) 61
  32. 32.Which number is the odd one out: 11, 97, 17, 60? (a) 11 (b) 97 (c) 17 (d) 60
  33. 33.Which number is the odd one out: 13, 60, 53, 59? (a) 13 (b) 60 (c) 53 (d) 59
  34. 34.Which number is the odd one out: 81, 9, 93, 27? (a) 81 (b) 9 (c) 93 (d) 27
  35. 35.Which number is the odd one out: 52, 92, 44, 79? (a) 52 (b) 92 (c) 44 (d) 79
  36. 36.Which number is the odd one out: 54, 18, 50, 6? (a) 54 (b) 18 (c) 50 (d) 6
  37. 37.Which number is the odd one out: 4, 47, 19, 67? (a) 4 (b) 47 (c) 19 (d) 67
  38. 38.Which number is the odd one out: 12, 28, 54, 18? (a) 12 (b) 28 (c) 54 (d) 18
  39. 39.Which number is the odd one out: 24, 8, 96, 70? (a) 24 (b) 8 (c) 96 (d) 70
  40. 40.Which number is the odd one out: 96, 24, 71, 88? (a) 96 (b) 24 (c) 71 (d) 88

Answer key

  1. 92
  2. 2
  3. 34
  4. 91
  5. 56
  6. 20
  7. 21
  8. 87
  9. 43
  10. 29
  11. 38
  12. 95
  13. 72
  14. 64
  15. 21
  16. 82
  17. 20
  18. 27
  19. 30
  20. 17
  21. 22
  22. 26
  23. 89
  24. 90
  25. 75
  26. 92
  27. 2
  28. 60
  29. 12
  30. 65
  31. 95
  32. 60
  33. 60
  34. 93
  35. 79
  36. 50
  37. 4
  38. 28
  39. 70
  40. 71

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