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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 568 · 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: 48, 24, 96, 66? (a) 48 (b) 24 (c) 96 (d) 66
  2. 2.Which number is the odd one out: 37, 71, 23, 86? (a) 37 (b) 71 (c) 23 (d) 86
  3. 3.Which number is the odd one out: 23, 26, 11, 89? (a) 23 (b) 26 (c) 11 (d) 89
  4. 4.Which number is the odd one out: 8, 24, 59, 96? (a) 8 (b) 24 (c) 59 (d) 96
  5. 5.Which number is the odd one out: 49, 48, 56, 96? (a) 49 (b) 48 (c) 56 (d) 96
  6. 6.Which number is the odd one out: 73, 81, 9, 27? (a) 73 (b) 81 (c) 9 (d) 27
  7. 7.Which number is the odd one out: 8, 41, 48, 24? (a) 8 (b) 41 (c) 48 (d) 24
  8. 8.Which number is the odd one out: 64, 16, 49, 35? (a) 64 (b) 16 (c) 49 (d) 35
  9. 9.Which number is the odd one out: 37, 25, 43, 23? (a) 37 (b) 25 (c) 43 (d) 23
  10. 10.Which number is the odd one out: 3, 97, 31, 75? (a) 3 (b) 97 (c) 31 (d) 75
  11. 11.Which number is the odd one out: 54, 18, 45, 75? (a) 54 (b) 18 (c) 45 (d) 75
  12. 12.Which number is the odd one out: 96, 38, 48, 12? (a) 96 (b) 38 (c) 48 (d) 12
  13. 13.Which number is the odd one out: 14, 11, 17, 13? (a) 14 (b) 11 (c) 17 (d) 13
  14. 14.Which number is the odd one out: 52, 68, 5, 20? (a) 52 (b) 68 (c) 5 (d) 20
  15. 15.Which number is the odd one out: 12, 43, 61, 79? (a) 12 (b) 43 (c) 61 (d) 79
  16. 16.Which number is the odd one out: 73, 72, 51, 79? (a) 73 (b) 72 (c) 51 (d) 79
  17. 17.Which number is the odd one out: 3, 51, 64, 31? (a) 3 (b) 51 (c) 64 (d) 31
  18. 18.Which number is the odd one out: 64, 25, 85, 50? (a) 64 (b) 25 (c) 85 (d) 50
  19. 19.Which number is the odd one out: 72, 24, 81, 12? (a) 72 (b) 24 (c) 81 (d) 12
  20. 20.Which number is the odd one out: 31, 89, 53, 50? (a) 31 (b) 89 (c) 53 (d) 50
  21. 21.Which number is the odd one out: 37, 48, 19, 17? (a) 37 (b) 48 (c) 19 (d) 17
  22. 22.Which number is the odd one out: 73, 37, 41, 78? (a) 73 (b) 37 (c) 41 (d) 78
  23. 23.Which number is the odd one out: 37, 59, 92, 97? (a) 37 (b) 59 (c) 92 (d) 97
  24. 24.Which number is the odd one out: 84, 68, 42, 19? (a) 84 (b) 68 (c) 42 (d) 19
  25. 25.Which number is the odd one out: 47, 97, 79, 34? (a) 47 (b) 97 (c) 79 (d) 34
  26. 26.Which number is the odd one out: 85, 15, 6, 66? (a) 85 (b) 15 (c) 6 (d) 66
  27. 27.Which number is the odd one out: 41, 2, 90, 5? (a) 41 (b) 2 (c) 90 (d) 5
  28. 28.Which number is the odd one out: 17, 79, 84, 61? (a) 17 (b) 79 (c) 84 (d) 61
  29. 29.Which number is the odd one out: 67, 93, 89, 3? (a) 67 (b) 93 (c) 89 (d) 3
  30. 30.Which number is the odd one out: 64, 41, 19, 17? (a) 64 (b) 41 (c) 19 (d) 17
  31. 31.Which number is the odd one out: 65, 15, 85, 54? (a) 65 (b) 15 (c) 85 (d) 54
  32. 32.Which number is the odd one out: 24, 17, 96, 3? (a) 24 (b) 17 (c) 96 (d) 3
  33. 33.Which number is the odd one out: 95, 48, 5, 83? (a) 95 (b) 48 (c) 5 (d) 83
  34. 34.Which number is the odd one out: 64, 4, 79, 88? (a) 64 (b) 4 (c) 79 (d) 88
  35. 35.Which number is the odd one out: 47, 97, 66, 13? (a) 47 (b) 97 (c) 66 (d) 13
  36. 36.Which number is the odd one out: 29, 37, 27, 19? (a) 29 (b) 37 (c) 27 (d) 19
  37. 37.Which number is the odd one out: 82, 55, 50, 65? (a) 82 (b) 55 (c) 50 (d) 65
  38. 38.Which number is the odd one out: 61, 14, 59, 71? (a) 61 (b) 14 (c) 59 (d) 71
  39. 39.Which number is the odd one out: 59, 91, 43, 53? (a) 59 (b) 91 (c) 43 (d) 53
  40. 40.Which number is the odd one out: 41, 43, 47, 20? (a) 41 (b) 43 (c) 47 (d) 20

Answer key

  1. 66
  2. 86
  3. 26
  4. 59
  5. 49
  6. 73
  7. 41
  8. 35
  9. 25
  10. 75
  11. 75
  12. 38
  13. 14
  14. 5
  15. 12
  16. 72
  17. 64
  18. 64
  19. 81
  20. 50
  21. 48
  22. 78
  23. 92
  24. 19
  25. 34
  26. 85
  27. 90
  28. 84
  29. 93
  30. 64
  31. 54
  32. 17
  33. 48
  34. 79
  35. 66
  36. 27
  37. 82
  38. 14
  39. 91
  40. 20

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