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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 996 · 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: 54, 8, 18, 78? (a) 54 (b) 8 (c) 18 (d) 78
  2. 2.Which number is the odd one out: 32, 8, 88, 92? (a) 32 (b) 8 (c) 88 (d) 92
  3. 3.Which number is the odd one out: 95, 86, 50, 65? (a) 95 (b) 86 (c) 50 (d) 65
  4. 4.Which number is the odd one out: 16, 49, 96, 24? (a) 16 (b) 49 (c) 96 (d) 24
  5. 5.Which number is the odd one out: 89, 37, 22, 83? (a) 89 (b) 37 (c) 22 (d) 83
  6. 6.Which number is the odd one out: 2, 48, 31, 37? (a) 2 (b) 48 (c) 31 (d) 37
  7. 7.Which number is the odd one out: 41, 55, 43, 11? (a) 41 (b) 55 (c) 43 (d) 11
  8. 8.Which number is the odd one out: 6, 30, 25, 87? (a) 6 (b) 30 (c) 25 (d) 87
  9. 9.Which number is the odd one out: 15, 42, 60, 84? (a) 15 (b) 42 (c) 60 (d) 84
  10. 10.Which number is the odd one out: 41, 33, 67, 73? (a) 41 (b) 33 (c) 67 (d) 73
  11. 11.Which number is the odd one out: 11, 49, 83, 41? (a) 11 (b) 49 (c) 83 (d) 41
  12. 12.Which number is the odd one out: 49, 47, 19, 41? (a) 49 (b) 47 (c) 19 (d) 41
  13. 13.Which number is the odd one out: 18, 67, 27, 43? (a) 18 (b) 67 (c) 27 (d) 43
  14. 14.Which number is the odd one out: 31, 89, 34, 71? (a) 31 (b) 89 (c) 34 (d) 71
  15. 15.Which number is the odd one out: 11, 82, 17, 83? (a) 11 (b) 82 (c) 17 (d) 83
  16. 16.Which number is the odd one out: 79, 43, 67, 38? (a) 79 (b) 43 (c) 67 (d) 38
  17. 17.Which number is the odd one out: 28, 23, 67, 7? (a) 28 (b) 23 (c) 67 (d) 7
  18. 18.Which number is the odd one out: 78, 2, 23, 11? (a) 78 (b) 2 (c) 23 (d) 11
  19. 19.Which number is the odd one out: 47, 2, 90, 61? (a) 47 (b) 2 (c) 90 (d) 61
  20. 20.Which number is the odd one out: 61, 79, 22, 73? (a) 61 (b) 79 (c) 22 (d) 73
  21. 21.Which number is the odd one out: 53, 23, 57, 41? (a) 53 (b) 23 (c) 57 (d) 41
  22. 22.Which number is the odd one out: 20, 64, 32, 16? (a) 20 (b) 64 (c) 32 (d) 16
  23. 23.Which number is the odd one out: 81, 9, 27, 53? (a) 81 (b) 9 (c) 27 (d) 53
  24. 24.Which number is the odd one out: 12, 70, 96, 48? (a) 12 (b) 70 (c) 96 (d) 48
  25. 25.Which number is the odd one out: 37, 69, 67, 29? (a) 37 (b) 69 (c) 67 (d) 29
  26. 26.Which number is the odd one out: 89, 28, 73, 47? (a) 89 (b) 28 (c) 73 (d) 47
  27. 27.Which number is the odd one out: 47, 31, 8, 17? (a) 47 (b) 31 (c) 8 (d) 17
  28. 28.Which number is the odd one out: 71, 57, 31, 89? (a) 71 (b) 57 (c) 31 (d) 89
  29. 29.Which number is the odd one out: 48, 7, 24, 32? (a) 48 (b) 7 (c) 24 (d) 32
  30. 30.Which number is the odd one out: 14, 91, 60, 35? (a) 14 (b) 91 (c) 60 (d) 35
  31. 31.Which number is the odd one out: 89, 17, 82, 2? (a) 89 (b) 17 (c) 82 (d) 2
  32. 32.Which number is the odd one out: 13, 83, 10, 17? (a) 13 (b) 83 (c) 10 (d) 17
  33. 33.Which number is the odd one out: 93, 53, 66, 43? (a) 93 (b) 53 (c) 66 (d) 43
  34. 34.Which number is the odd one out: 70, 83, 29, 5? (a) 70 (b) 83 (c) 29 (d) 5
  35. 35.Which number is the odd one out: 37, 73, 54, 27? (a) 37 (b) 73 (c) 54 (d) 27
  36. 36.Which number is the odd one out: 13, 71, 98, 2? (a) 13 (b) 71 (c) 98 (d) 2
  37. 37.Which number is the odd one out: 84, 24, 72, 63? (a) 84 (b) 24 (c) 72 (d) 63
  38. 38.Which number is the odd one out: 79, 31, 72, 17? (a) 79 (b) 31 (c) 72 (d) 17
  39. 39.Which number is the odd one out: 68, 81, 16, 32? (a) 68 (b) 81 (c) 16 (d) 32
  40. 40.Which number is the odd one out: 2, 47, 58, 43? (a) 2 (b) 47 (c) 58 (d) 43

Answer key

  1. 8
  2. 92
  3. 86
  4. 49
  5. 22
  6. 48
  7. 55
  8. 25
  9. 15
  10. 33
  11. 49
  12. 49
  13. 18
  14. 34
  15. 82
  16. 38
  17. 28
  18. 78
  19. 90
  20. 22
  21. 57
  22. 20
  23. 53
  24. 70
  25. 69
  26. 28
  27. 8
  28. 57
  29. 7
  30. 60
  31. 82
  32. 10
  33. 66
  34. 70
  35. 54
  36. 98
  37. 63
  38. 72
  39. 81
  40. 58

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