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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 411 · 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: 13, 7, 97, 28? (a) 13 (b) 7 (c) 97 (d) 28
  2. 2.Which number is the odd one out: 85, 24, 95, 55? (a) 85 (b) 24 (c) 95 (d) 55
  3. 3.Which number is the odd one out: 17, 83, 68, 59? (a) 17 (b) 83 (c) 68 (d) 59
  4. 4.Which number is the odd one out: 31, 20, 89, 79? (a) 31 (b) 20 (c) 89 (d) 79
  5. 5.Which number is the odd one out: 81, 9, 7, 27? (a) 81 (b) 9 (c) 7 (d) 27
  6. 6.Which number is the odd one out: 91, 83, 89, 59? (a) 91 (b) 83 (c) 89 (d) 59
  7. 7.Which number is the odd one out: 47, 17, 20, 79? (a) 47 (b) 17 (c) 20 (d) 79
  8. 8.Which number is the odd one out: 43, 70, 67, 23? (a) 43 (b) 70 (c) 67 (d) 23
  9. 9.Which number is the odd one out: 19, 48, 89, 23? (a) 19 (b) 48 (c) 89 (d) 23
  10. 10.Which number is the odd one out: 24, 41, 37, 79? (a) 24 (b) 41 (c) 37 (d) 79
  11. 11.Which number is the odd one out: 48, 67, 89, 79? (a) 48 (b) 67 (c) 89 (d) 79
  12. 12.Which number is the odd one out: 93, 29, 3, 11? (a) 93 (b) 29 (c) 3 (d) 11
  13. 13.Which number is the odd one out: 76, 92, 20, 45? (a) 76 (b) 92 (c) 20 (d) 45
  14. 14.Which number is the odd one out: 60, 40, 78, 6? (a) 60 (b) 40 (c) 78 (d) 6
  15. 15.Which number is the odd one out: 5, 24, 32, 60? (a) 5 (b) 24 (c) 32 (d) 60
  16. 16.Which number is the odd one out: 48, 97, 24, 32? (a) 48 (b) 97 (c) 24 (d) 32
  17. 17.Which number is the odd one out: 45, 40, 64, 16? (a) 45 (b) 40 (c) 64 (d) 16
  18. 18.Which number is the odd one out: 59, 13, 14, 61? (a) 59 (b) 13 (c) 14 (d) 61
  19. 19.Which number is the odd one out: 18, 96, 50, 72? (a) 18 (b) 96 (c) 50 (d) 72
  20. 20.Which number is the odd one out: 83, 11, 62, 71? (a) 83 (b) 11 (c) 62 (d) 71
  21. 21.Which number is the odd one out: 88, 80, 60, 96? (a) 88 (b) 80 (c) 60 (d) 96
  22. 22.Which number is the odd one out: 88, 53, 89, 59? (a) 88 (b) 53 (c) 89 (d) 59
  23. 23.Which number is the odd one out: 97, 47, 53, 58? (a) 97 (b) 47 (c) 53 (d) 58
  24. 24.Which number is the odd one out: 11, 79, 43, 84? (a) 11 (b) 79 (c) 43 (d) 84
  25. 25.Which number is the odd one out: 34, 23, 31, 19? (a) 34 (b) 23 (c) 31 (d) 19
  26. 26.Which number is the odd one out: 9, 55, 81, 33? (a) 9 (b) 55 (c) 81 (d) 33
  27. 27.Which number is the odd one out: 55, 40, 24, 85? (a) 55 (b) 40 (c) 24 (d) 85
  28. 28.Which number is the odd one out: 12, 30, 13, 60? (a) 12 (b) 30 (c) 13 (d) 60
  29. 29.Which number is the odd one out: 64, 63, 16, 49? (a) 64 (b) 63 (c) 16 (d) 49
  30. 30.Which number is the odd one out: 49, 91, 16, 64? (a) 49 (b) 91 (c) 16 (d) 64
  31. 31.Which number is the odd one out: 23, 29, 93, 11? (a) 23 (b) 29 (c) 93 (d) 11
  32. 32.Which number is the odd one out: 15, 6, 65, 85? (a) 15 (b) 6 (c) 65 (d) 85
  33. 33.Which number is the odd one out: 54, 90, 45, 61? (a) 54 (b) 90 (c) 45 (d) 61
  34. 34.Which number is the odd one out: 47, 97, 59, 90? (a) 47 (b) 97 (c) 59 (d) 90
  35. 35.Which number is the odd one out: 83, 16, 13, 37? (a) 83 (b) 16 (c) 13 (d) 37
  36. 36.Which number is the odd one out: 59, 61, 66, 89? (a) 59 (b) 61 (c) 66 (d) 89
  37. 37.Which number is the odd one out: 75, 28, 10, 15? (a) 75 (b) 28 (c) 10 (d) 15
  38. 38.Which number is the odd one out: 10, 2, 13, 11? (a) 10 (b) 2 (c) 13 (d) 11
  39. 39.Which number is the odd one out: 16, 88, 36, 96? (a) 16 (b) 88 (c) 36 (d) 96
  40. 40.Which number is the odd one out: 13, 59, 73, 68? (a) 13 (b) 59 (c) 73 (d) 68

Answer key

  1. 28
  2. 24
  3. 68
  4. 20
  5. 7
  6. 91
  7. 20
  8. 70
  9. 48
  10. 24
  11. 48
  12. 93
  13. 45
  14. 40
  15. 5
  16. 97
  17. 45
  18. 14
  19. 50
  20. 62
  21. 60
  22. 88
  23. 58
  24. 84
  25. 34
  26. 55
  27. 24
  28. 13
  29. 63
  30. 91
  31. 93
  32. 6
  33. 61
  34. 90
  35. 16
  36. 66
  37. 28
  38. 10
  39. 36
  40. 68

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