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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 353 · 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: 2, 73, 32, 97? (a) 2 (b) 73 (c) 32 (d) 97
  2. 2.Which number is the odd one out: 17, 43, 90, 61? (a) 17 (b) 43 (c) 90 (d) 61
  3. 3.Which number is the odd one out: 75, 47, 71, 61? (a) 75 (b) 47 (c) 71 (d) 61
  4. 4.Which number is the odd one out: 73, 32, 8, 62? (a) 73 (b) 32 (c) 8 (d) 62
  5. 5.Which number is the odd one out: 92, 24, 96, 88? (a) 92 (b) 24 (c) 96 (d) 88
  6. 6.Which number is the odd one out: 53, 28, 11, 37? (a) 53 (b) 28 (c) 11 (d) 37
  7. 7.Which number is the odd one out: 88, 76, 71, 32? (a) 88 (b) 76 (c) 71 (d) 32
  8. 8.Which number is the odd one out: 17, 50, 79, 23? (a) 17 (b) 50 (c) 79 (d) 23
  9. 9.Which number is the odd one out: 47, 8, 31, 17? (a) 47 (b) 8 (c) 31 (d) 17
  10. 10.Which number is the odd one out: 78, 53, 73, 89? (a) 78 (b) 53 (c) 73 (d) 89
  11. 11.Which number is the odd one out: 43, 13, 89, 15? (a) 43 (b) 13 (c) 89 (d) 15
  12. 12.Which number is the odd one out: 71, 79, 42, 73? (a) 71 (b) 79 (c) 42 (d) 73
  13. 13.Which number is the odd one out: 81, 96, 24, 72? (a) 81 (b) 96 (c) 24 (d) 72
  14. 14.Which number is the odd one out: 79, 55, 19, 41? (a) 79 (b) 55 (c) 19 (d) 41
  15. 15.Which number is the odd one out: 29, 93, 3, 43? (a) 29 (b) 93 (c) 3 (d) 43
  16. 16.Which number is the odd one out: 35, 70, 7, 2? (a) 35 (b) 70 (c) 7 (d) 2
  17. 17.Which number is the odd one out: 95, 16, 5, 11? (a) 95 (b) 16 (c) 5 (d) 11
  18. 18.Which number is the odd one out: 55, 18, 30, 95? (a) 55 (b) 18 (c) 30 (d) 95
  19. 19.Which number is the odd one out: 43, 11, 4, 53? (a) 43 (b) 11 (c) 4 (d) 53
  20. 20.Which number is the odd one out: 23, 59, 77, 19? (a) 23 (b) 59 (c) 77 (d) 19
  21. 21.Which number is the odd one out: 61, 48, 24, 12? (a) 61 (b) 48 (c) 24 (d) 12
  22. 22.Which number is the odd one out: 23, 91, 59, 11? (a) 23 (b) 91 (c) 59 (d) 11
  23. 23.Which number is the odd one out: 76, 8, 14, 56? (a) 76 (b) 8 (c) 14 (d) 56
  24. 24.Which number is the odd one out: 17, 23, 9, 3? (a) 17 (b) 23 (c) 9 (d) 3
  25. 25.Which number is the odd one out: 79, 16, 64, 92? (a) 79 (b) 16 (c) 64 (d) 92
  26. 26.Which number is the odd one out: 23, 17, 49, 53? (a) 23 (b) 17 (c) 49 (d) 53
  27. 27.Which number is the odd one out: 13, 73, 53, 86? (a) 13 (b) 73 (c) 53 (d) 86
  28. 28.Which number is the odd one out: 68, 44, 86, 35? (a) 68 (b) 44 (c) 86 (d) 35
  29. 29.Which number is the odd one out: 61, 43, 41, 74? (a) 61 (b) 43 (c) 41 (d) 74
  30. 30.Which number is the odd one out: 53, 31, 83, 33? (a) 53 (b) 31 (c) 83 (d) 33
  31. 31.Which number is the odd one out: 28, 37, 7, 79? (a) 28 (b) 37 (c) 7 (d) 79
  32. 32.Which number is the odd one out: 93, 96, 6, 24? (a) 93 (b) 96 (c) 6 (d) 24
  33. 33.Which number is the odd one out: 13, 18, 90, 15? (a) 13 (b) 18 (c) 90 (d) 15
  34. 34.Which number is the odd one out: 13, 31, 24, 2? (a) 13 (b) 31 (c) 24 (d) 2
  35. 35.Which number is the odd one out: 64, 49, 56, 92? (a) 64 (b) 49 (c) 56 (d) 92
  36. 36.Which number is the odd one out: 8, 68, 96, 24? (a) 8 (b) 68 (c) 96 (d) 24
  37. 37.Which number is the odd one out: 31, 90, 93, 71? (a) 31 (b) 90 (c) 93 (d) 71
  38. 38.Which number is the odd one out: 67, 47, 74, 11? (a) 67 (b) 47 (c) 74 (d) 11
  39. 39.Which number is the odd one out: 59, 69, 53, 17? (a) 59 (b) 69 (c) 53 (d) 17
  40. 40.Which number is the odd one out: 84, 37, 97, 73? (a) 84 (b) 37 (c) 97 (d) 73

Answer key

  1. 32
  2. 90
  3. 75
  4. 73
  5. 92
  6. 28
  7. 71
  8. 50
  9. 8
  10. 78
  11. 15
  12. 42
  13. 81
  14. 55
  15. 93
  16. 2
  17. 16
  18. 18
  19. 4
  20. 77
  21. 61
  22. 91
  23. 14
  24. 9
  25. 79
  26. 49
  27. 86
  28. 35
  29. 74
  30. 33
  31. 28
  32. 93
  33. 13
  34. 24
  35. 49
  36. 68
  37. 90
  38. 74
  39. 69
  40. 84

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