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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 463 · 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: 16, 64, 4, 23? (a) 16 (b) 64 (c) 4 (d) 23
  2. 2.Which number is the odd one out: 12, 83, 3, 73? (a) 12 (b) 83 (c) 3 (d) 73
  3. 3.Which number is the odd one out: 75, 85, 65, 9? (a) 75 (b) 85 (c) 65 (d) 9
  4. 4.Which number is the odd one out: 94, 23, 26, 62? (a) 94 (b) 23 (c) 26 (d) 62
  5. 5.Which number is the odd one out: 59, 43, 13, 65? (a) 59 (b) 43 (c) 13 (d) 65
  6. 6.Which number is the odd one out: 55, 44, 68, 92? (a) 55 (b) 44 (c) 68 (d) 92
  7. 7.Which number is the odd one out: 66, 39, 53, 43? (a) 66 (b) 39 (c) 53 (d) 43
  8. 8.Which number is the odd one out: 73, 17, 34, 29? (a) 73 (b) 17 (c) 34 (d) 29
  9. 9.Which number is the odd one out: 46, 23, 17, 73? (a) 46 (b) 23 (c) 17 (d) 73
  10. 10.Which number is the odd one out: 7, 53, 23, 14? (a) 7 (b) 53 (c) 23 (d) 14
  11. 11.Which number is the odd one out: 11, 43, 80, 97? (a) 11 (b) 43 (c) 80 (d) 97
  12. 12.Which number is the odd one out: 71, 67, 94, 43? (a) 71 (b) 67 (c) 94 (d) 43
  13. 13.Which number is the odd one out: 23, 41, 11, 76? (a) 23 (b) 41 (c) 11 (d) 76
  14. 14.Which number is the odd one out: 96, 97, 61, 37? (a) 96 (b) 97 (c) 61 (d) 37
  15. 15.Which number is the odd one out: 29, 61, 18, 73? (a) 29 (b) 61 (c) 18 (d) 73
  16. 16.Which number is the odd one out: 27, 99, 88, 93? (a) 27 (b) 99 (c) 88 (d) 93
  17. 17.Which number is the odd one out: 13, 71, 41, 80? (a) 13 (b) 71 (c) 41 (d) 80
  18. 18.Which number is the odd one out: 51, 43, 83, 73? (a) 51 (b) 43 (c) 83 (d) 73
  19. 19.Which number is the odd one out: 89, 69, 24, 61? (a) 89 (b) 69 (c) 24 (d) 61
  20. 20.Which number is the odd one out: 55, 31, 23, 83? (a) 55 (b) 31 (c) 23 (d) 83
  21. 21.Which number is the odd one out: 72, 54, 24, 7? (a) 72 (b) 54 (c) 24 (d) 7
  22. 22.Which number is the odd one out: 41, 59, 53, 93? (a) 41 (b) 59 (c) 53 (d) 93
  23. 23.Which number is the odd one out: 59, 45, 53, 83? (a) 59 (b) 45 (c) 53 (d) 83
  24. 24.Which number is the odd one out: 28, 5, 23, 85? (a) 28 (b) 5 (c) 23 (d) 85
  25. 25.Which number is the odd one out: 67, 46, 38, 34? (a) 67 (b) 46 (c) 38 (d) 34
  26. 26.Which number is the odd one out: 85, 13, 73, 29? (a) 85 (b) 13 (c) 73 (d) 29
  27. 27.Which number is the odd one out: 41, 63, 7, 89? (a) 41 (b) 63 (c) 7 (d) 89
  28. 28.Which number is the odd one out: 10, 52, 25, 4? (a) 10 (b) 52 (c) 25 (d) 4
  29. 29.Which number is the odd one out: 2, 42, 11, 41? (a) 2 (b) 42 (c) 11 (d) 41
  30. 30.Which number is the odd one out: 37, 64, 89, 71? (a) 37 (b) 64 (c) 89 (d) 71
  31. 31.Which number is the odd one out: 15, 90, 19, 37? (a) 15 (b) 90 (c) 19 (d) 37
  32. 32.Which number is the odd one out: 17, 74, 89, 83? (a) 17 (b) 74 (c) 89 (d) 83
  33. 33.Which number is the odd one out: 29, 89, 22, 31? (a) 29 (b) 89 (c) 22 (d) 31
  34. 34.Which number is the odd one out: 29, 97, 91, 19? (a) 29 (b) 97 (c) 91 (d) 19
  35. 35.Which number is the odd one out: 97, 53, 65, 31? (a) 97 (b) 53 (c) 65 (d) 31
  36. 36.Which number is the odd one out: 67, 59, 26, 89? (a) 67 (b) 59 (c) 26 (d) 89
  37. 37.Which number is the odd one out: 90, 18, 99, 85? (a) 90 (b) 18 (c) 99 (d) 85
  38. 38.Which number is the odd one out: 43, 15, 19, 29? (a) 43 (b) 15 (c) 19 (d) 29
  39. 39.Which number is the odd one out: 67, 2, 70, 23? (a) 67 (b) 2 (c) 70 (d) 23
  40. 40.Which number is the odd one out: 96, 66, 78, 8? (a) 96 (b) 66 (c) 78 (d) 8

Answer key

  1. 23
  2. 12
  3. 9
  4. 23
  5. 65
  6. 55
  7. 66
  8. 34
  9. 46
  10. 14
  11. 80
  12. 94
  13. 76
  14. 96
  15. 18
  16. 88
  17. 80
  18. 51
  19. 24
  20. 55
  21. 7
  22. 93
  23. 45
  24. 28
  25. 67
  26. 85
  27. 63
  28. 25
  29. 42
  30. 64
  31. 90
  32. 74
  33. 22
  34. 91
  35. 65
  36. 26
  37. 85
  38. 15
  39. 70
  40. 8

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