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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 41 · 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: 80, 96, 25, 24? (a) 80 (b) 96 (c) 25 (d) 24
  2. 2.Which number is the odd one out: 61, 76, 41, 97? (a) 61 (b) 76 (c) 41 (d) 97
  3. 3.Which number is the odd one out: 43, 11, 52, 89? (a) 43 (b) 11 (c) 52 (d) 89
  4. 4.Which number is the odd one out: 79, 64, 37, 67? (a) 79 (b) 64 (c) 37 (d) 67
  5. 5.Which number is the odd one out: 17, 98, 83, 7? (a) 17 (b) 98 (c) 83 (d) 7
  6. 6.Which number is the odd one out: 3, 18, 99, 54? (a) 3 (b) 18 (c) 99 (d) 54
  7. 7.Which number is the odd one out: 55, 13, 17, 59? (a) 55 (b) 13 (c) 17 (d) 59
  8. 8.Which number is the odd one out: 53, 17, 24, 3? (a) 53 (b) 17 (c) 24 (d) 3
  9. 9.Which number is the odd one out: 54, 71, 43, 3? (a) 54 (b) 71 (c) 43 (d) 3
  10. 10.Which number is the odd one out: 18, 71, 19, 97? (a) 18 (b) 71 (c) 19 (d) 97
  11. 11.Which number is the odd one out: 92, 27, 81, 9? (a) 92 (b) 27 (c) 81 (d) 9
  12. 12.Which number is the odd one out: 73, 83, 39, 61? (a) 73 (b) 83 (c) 39 (d) 61
  13. 13.Which number is the odd one out: 77, 62, 94, 22? (a) 77 (b) 62 (c) 94 (d) 22
  14. 14.Which number is the odd one out: 17, 31, 39, 83? (a) 17 (b) 31 (c) 39 (d) 83
  15. 15.Which number is the odd one out: 80, 40, 84, 24? (a) 80 (b) 40 (c) 84 (d) 24
  16. 16.Which number is the odd one out: 2, 64, 29, 97? (a) 2 (b) 64 (c) 29 (d) 97
  17. 17.Which number is the odd one out: 11, 10, 97, 43? (a) 11 (b) 10 (c) 97 (d) 43
  18. 18.Which number is the odd one out: 97, 31, 37, 72? (a) 97 (b) 31 (c) 37 (d) 72
  19. 19.Which number is the odd one out: 27, 12, 45, 90? (a) 27 (b) 12 (c) 45 (d) 90
  20. 20.Which number is the odd one out: 83, 43, 25, 17? (a) 83 (b) 43 (c) 25 (d) 17
  21. 21.Which number is the odd one out: 43, 89, 21, 31? (a) 43 (b) 89 (c) 21 (d) 31
  22. 22.Which number is the odd one out: 18, 31, 54, 27? (a) 18 (b) 31 (c) 54 (d) 27
  23. 23.Which number is the odd one out: 14, 73, 43, 2? (a) 14 (b) 73 (c) 43 (d) 2
  24. 24.Which number is the odd one out: 43, 73, 78, 13? (a) 43 (b) 73 (c) 78 (d) 13
  25. 25.Which number is the odd one out: 97, 67, 19, 21? (a) 97 (b) 67 (c) 19 (d) 21
  26. 26.Which number is the odd one out: 93, 89, 17, 67? (a) 93 (b) 89 (c) 17 (d) 67
  27. 27.Which number is the odd one out: 92, 4, 9, 22? (a) 92 (b) 4 (c) 9 (d) 22
  28. 28.Which number is the odd one out: 70, 7, 43, 11? (a) 70 (b) 7 (c) 43 (d) 11
  29. 29.Which number is the odd one out: 37, 55, 41, 89? (a) 37 (b) 55 (c) 41 (d) 89
  30. 30.Which number is the odd one out: 90, 54, 18, 40? (a) 90 (b) 54 (c) 18 (d) 40
  31. 31.Which number is the odd one out: 29, 42, 37, 71? (a) 29 (b) 42 (c) 37 (d) 71
  32. 32.Which number is the odd one out: 66, 37, 24, 96? (a) 66 (b) 37 (c) 24 (d) 96
  33. 33.Which number is the odd one out: 13, 31, 60, 97? (a) 13 (b) 31 (c) 60 (d) 97
  34. 34.Which number is the odd one out: 71, 3, 21, 31? (a) 71 (b) 3 (c) 21 (d) 31
  35. 35.Which number is the odd one out: 63, 98, 9, 81? (a) 63 (b) 98 (c) 9 (d) 81
  36. 36.Which number is the odd one out: 93, 4, 64, 16? (a) 93 (b) 4 (c) 64 (d) 16
  37. 37.Which number is the odd one out: 89, 3, 18, 37? (a) 89 (b) 3 (c) 18 (d) 37
  38. 38.Which number is the odd one out: 19, 17, 52, 13? (a) 19 (b) 17 (c) 52 (d) 13
  39. 39.Which number is the odd one out: 24, 97, 96, 32? (a) 24 (b) 97 (c) 96 (d) 32
  40. 40.Which number is the odd one out: 27, 9, 24, 81? (a) 27 (b) 9 (c) 24 (d) 81

Answer key

  1. 25
  2. 76
  3. 52
  4. 64
  5. 98
  6. 3
  7. 55
  8. 24
  9. 54
  10. 18
  11. 92
  12. 39
  13. 77
  14. 39
  15. 84
  16. 64
  17. 10
  18. 72
  19. 12
  20. 25
  21. 21
  22. 31
  23. 14
  24. 78
  25. 21
  26. 93
  27. 9
  28. 70
  29. 55
  30. 40
  31. 42
  32. 37
  33. 60
  34. 21
  35. 98
  36. 93
  37. 18
  38. 52
  39. 97
  40. 24

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