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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 48 · 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, 29, 32, 97? (a) 23 (b) 29 (c) 32 (d) 97
  2. 2.Which number is the odd one out: 36, 27, 12, 9? (a) 36 (b) 27 (c) 12 (d) 9
  3. 3.Which number is the odd one out: 75, 89, 67, 3? (a) 75 (b) 89 (c) 67 (d) 3
  4. 4.Which number is the odd one out: 10, 6, 55, 15? (a) 10 (b) 6 (c) 55 (d) 15
  5. 5.Which number is the odd one out: 30, 52, 78, 60? (a) 30 (b) 52 (c) 78 (d) 60
  6. 6.Which number is the odd one out: 48, 67, 96, 66? (a) 48 (b) 67 (c) 96 (d) 66
  7. 7.Which number is the odd one out: 37, 72, 48, 54? (a) 37 (b) 72 (c) 48 (d) 54
  8. 8.Which number is the odd one out: 11, 23, 41, 98? (a) 11 (b) 23 (c) 41 (d) 98
  9. 9.Which number is the odd one out: 58, 12, 48, 24? (a) 58 (b) 12 (c) 48 (d) 24
  10. 10.Which number is the odd one out: 80, 43, 40, 8? (a) 80 (b) 43 (c) 40 (d) 8
  11. 11.Which number is the odd one out: 43, 31, 32, 97? (a) 43 (b) 31 (c) 32 (d) 97
  12. 12.Which number is the odd one out: 81, 83, 59, 79? (a) 81 (b) 83 (c) 59 (d) 79
  13. 13.Which number is the odd one out: 16, 8, 64, 76? (a) 16 (b) 8 (c) 64 (d) 76
  14. 14.Which number is the odd one out: 79, 55, 89, 10? (a) 79 (b) 55 (c) 89 (d) 10
  15. 15.Which number is the odd one out: 66, 72, 48, 81? (a) 66 (b) 72 (c) 48 (d) 81
  16. 16.Which number is the odd one out: 48, 24, 77, 56? (a) 48 (b) 24 (c) 77 (d) 56
  17. 17.Which number is the odd one out: 47, 50, 95, 61? (a) 47 (b) 50 (c) 95 (d) 61
  18. 18.Which number is the odd one out: 61, 54, 17, 2? (a) 61 (b) 54 (c) 17 (d) 2
  19. 19.Which number is the odd one out: 7, 23, 74, 91? (a) 7 (b) 23 (c) 74 (d) 91
  20. 20.Which number is the odd one out: 17, 29, 28, 73? (a) 17 (b) 29 (c) 28 (d) 73
  21. 21.Which number is the odd one out: 55, 53, 31, 13? (a) 55 (b) 53 (c) 31 (d) 13
  22. 22.Which number is the odd one out: 23, 48, 43, 67? (a) 23 (b) 48 (c) 43 (d) 67
  23. 23.Which number is the odd one out: 96, 67, 17, 73? (a) 96 (b) 67 (c) 17 (d) 73
  24. 24.Which number is the odd one out: 41, 72, 31, 59? (a) 41 (b) 72 (c) 31 (d) 59
  25. 25.Which number is the odd one out: 11, 65, 67, 61? (a) 11 (b) 65 (c) 67 (d) 61
  26. 26.Which number is the odd one out: 97, 83, 30, 89? (a) 97 (b) 83 (c) 30 (d) 89
  27. 27.Which number is the odd one out: 27, 99, 64, 81? (a) 27 (b) 99 (c) 64 (d) 81
  28. 28.Which number is the odd one out: 26, 78, 66, 23? (a) 26 (b) 78 (c) 66 (d) 23
  29. 29.Which number is the odd one out: 78, 3, 17, 2? (a) 78 (b) 3 (c) 17 (d) 2
  30. 30.Which number is the odd one out: 11, 35, 17, 67? (a) 11 (b) 35 (c) 17 (d) 67
  31. 31.Which number is the odd one out: 10, 85, 4, 65? (a) 10 (b) 85 (c) 4 (d) 65
  32. 32.Which number is the odd one out: 96, 37, 44, 24? (a) 96 (b) 37 (c) 44 (d) 24
  33. 33.Which number is the odd one out: 41, 98, 23, 13? (a) 41 (b) 98 (c) 23 (d) 13
  34. 34.Which number is the odd one out: 21, 8, 32, 56? (a) 21 (b) 8 (c) 32 (d) 56
  35. 35.Which number is the odd one out: 23, 59, 3, 60? (a) 23 (b) 59 (c) 3 (d) 60
  36. 36.Which number is the odd one out: 35, 84, 66, 68? (a) 35 (b) 84 (c) 66 (d) 68
  37. 37.Which number is the odd one out: 19, 96, 48, 24? (a) 19 (b) 96 (c) 48 (d) 24
  38. 38.Which number is the odd one out: 52, 61, 79, 23? (a) 52 (b) 61 (c) 79 (d) 23
  39. 39.Which number is the odd one out: 67, 23, 59, 27? (a) 67 (b) 23 (c) 59 (d) 27
  40. 40.Which number is the odd one out: 92, 40, 80, 29? (a) 92 (b) 40 (c) 80 (d) 29

Answer key

  1. 32
  2. 12
  3. 75
  4. 6
  5. 52
  6. 67
  7. 37
  8. 98
  9. 58
  10. 43
  11. 32
  12. 81
  13. 76
  14. 10
  15. 81
  16. 77
  17. 50
  18. 54
  19. 74
  20. 28
  21. 55
  22. 48
  23. 96
  24. 72
  25. 65
  26. 30
  27. 64
  28. 23
  29. 78
  30. 35
  31. 4
  32. 37
  33. 98
  34. 21
  35. 60
  36. 35
  37. 19
  38. 52
  39. 27
  40. 29

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