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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 358 · 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: 28, 23, 17, 59? (a) 28 (b) 23 (c) 17 (d) 59
  2. 2.Which number is the odd one out: 93, 47, 41, 67? (a) 93 (b) 47 (c) 41 (d) 67
  3. 3.Which number is the odd one out: 4, 64, 16, 98? (a) 4 (b) 64 (c) 16 (d) 98
  4. 4.Which number is the odd one out: 65, 6, 30, 51? (a) 65 (b) 6 (c) 30 (d) 51
  5. 5.Which number is the odd one out: 40, 90, 8, 48? (a) 40 (b) 90 (c) 8 (d) 48
  6. 6.Which number is the odd one out: 71, 77, 31, 79? (a) 71 (b) 77 (c) 31 (d) 79
  7. 7.Which number is the odd one out: 48, 88, 96, 19? (a) 48 (b) 88 (c) 96 (d) 19
  8. 8.Which number is the odd one out: 64, 7, 16, 8? (a) 64 (b) 7 (c) 16 (d) 8
  9. 9.Which number is the odd one out: 17, 53, 42, 7? (a) 17 (b) 53 (c) 42 (d) 7
  10. 10.Which number is the odd one out: 15, 81, 10, 9? (a) 15 (b) 81 (c) 10 (d) 9
  11. 11.Which number is the odd one out: 31, 17, 53, 42? (a) 31 (b) 17 (c) 53 (d) 42
  12. 12.Which number is the odd one out: 31, 79, 60, 37? (a) 31 (b) 79 (c) 60 (d) 37
  13. 13.Which number is the odd one out: 8, 27, 16, 64? (a) 8 (b) 27 (c) 16 (d) 64
  14. 14.Which number is the odd one out: 47, 19, 46, 59? (a) 47 (b) 19 (c) 46 (d) 59
  15. 15.Which number is the odd one out: 10, 72, 15, 85? (a) 10 (b) 72 (c) 15 (d) 85
  16. 16.Which number is the odd one out: 47, 76, 37, 2? (a) 47 (b) 76 (c) 37 (d) 2
  17. 17.Which number is the odd one out: 69, 12, 23, 29? (a) 69 (b) 12 (c) 23 (d) 29
  18. 18.Which number is the odd one out: 19, 17, 53, 6? (a) 19 (b) 17 (c) 53 (d) 6
  19. 19.Which number is the odd one out: 59, 23, 2, 74? (a) 59 (b) 23 (c) 2 (d) 74
  20. 20.Which number is the odd one out: 51, 80, 85, 87? (a) 51 (b) 80 (c) 85 (d) 87
  21. 21.Which number is the odd one out: 11, 56, 17, 71? (a) 11 (b) 56 (c) 17 (d) 71
  22. 22.Which number is the odd one out: 54, 8, 12, 18? (a) 54 (b) 8 (c) 12 (d) 18
  23. 23.Which number is the odd one out: 79, 32, 11, 83? (a) 79 (b) 32 (c) 11 (d) 83
  24. 24.Which number is the odd one out: 21, 63, 36, 42? (a) 21 (b) 63 (c) 36 (d) 42
  25. 25.Which number is the odd one out: 17, 47, 76, 61? (a) 17 (b) 47 (c) 76 (d) 61
  26. 26.Which number is the odd one out: 37, 86, 53, 97? (a) 37 (b) 86 (c) 53 (d) 97
  27. 27.Which number is the odd one out: 26, 61, 11, 67? (a) 26 (b) 61 (c) 11 (d) 67
  28. 28.Which number is the odd one out: 70, 84, 12, 78? (a) 70 (b) 84 (c) 12 (d) 78
  29. 29.Which number is the odd one out: 23, 83, 53, 84? (a) 23 (b) 83 (c) 53 (d) 84
  30. 30.Which number is the odd one out: 27, 72, 97, 61? (a) 27 (b) 72 (c) 97 (d) 61
  31. 31.Which number is the odd one out: 18, 3, 41, 23? (a) 18 (b) 3 (c) 41 (d) 23
  32. 32.Which number is the odd one out: 38, 89, 23, 67? (a) 38 (b) 89 (c) 23 (d) 67
  33. 33.Which number is the odd one out: 67, 13, 17, 21? (a) 67 (b) 13 (c) 17 (d) 21
  34. 34.Which number is the odd one out: 13, 19, 48, 97? (a) 13 (b) 19 (c) 48 (d) 97
  35. 35.Which number is the odd one out: 97, 71, 47, 72? (a) 97 (b) 71 (c) 47 (d) 72
  36. 36.Which number is the odd one out: 14, 77, 63, 18? (a) 14 (b) 77 (c) 63 (d) 18
  37. 37.Which number is the odd one out: 29, 19, 90, 71? (a) 29 (b) 19 (c) 90 (d) 71
  38. 38.Which number is the odd one out: 71, 43, 69, 47? (a) 71 (b) 43 (c) 69 (d) 47
  39. 39.Which number is the odd one out: 23, 69, 47, 59? (a) 23 (b) 69 (c) 47 (d) 59
  40. 40.Which number is the odd one out: 85, 17, 19, 29? (a) 85 (b) 17 (c) 19 (d) 29

Answer key

  1. 28
  2. 93
  3. 98
  4. 65
  5. 90
  6. 77
  7. 19
  8. 7
  9. 42
  10. 10
  11. 42
  12. 60
  13. 27
  14. 46
  15. 72
  16. 76
  17. 12
  18. 6
  19. 74
  20. 80
  21. 56
  22. 8
  23. 32
  24. 36
  25. 76
  26. 86
  27. 26
  28. 70
  29. 84
  30. 72
  31. 18
  32. 38
  33. 21
  34. 48
  35. 72
  36. 18
  37. 90
  38. 69
  39. 69
  40. 85

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