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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 29 · 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: 85, 24, 65, 75? (a) 85 (b) 24 (c) 65 (d) 75
  2. 2.Which number is the odd one out: 43, 42, 79, 93? (a) 43 (b) 42 (c) 79 (d) 93
  3. 3.Which number is the odd one out: 2, 92, 24, 48? (a) 2 (b) 92 (c) 24 (d) 48
  4. 4.Which number is the odd one out: 27, 13, 41, 19? (a) 27 (b) 13 (c) 41 (d) 19
  5. 5.Which number is the odd one out: 43, 24, 72, 18? (a) 43 (b) 24 (c) 72 (d) 18
  6. 6.Which number is the odd one out: 44, 79, 31, 11? (a) 44 (b) 79 (c) 31 (d) 11
  7. 7.Which number is the odd one out: 81, 42, 9, 99? (a) 81 (b) 42 (c) 9 (d) 99
  8. 8.Which number is the odd one out: 13, 84, 91, 47? (a) 13 (b) 84 (c) 91 (d) 47
  9. 9.Which number is the odd one out: 48, 89, 43, 37? (a) 48 (b) 89 (c) 43 (d) 37
  10. 10.Which number is the odd one out: 53, 11, 85, 13? (a) 53 (b) 11 (c) 85 (d) 13
  11. 11.Which number is the odd one out: 72, 77, 91, 87? (a) 72 (b) 77 (c) 91 (d) 87
  12. 12.Which number is the odd one out: 24, 73, 32, 12? (a) 24 (b) 73 (c) 32 (d) 12
  13. 13.Which number is the odd one out: 31, 76, 71, 61? (a) 31 (b) 76 (c) 71 (d) 61
  14. 14.Which number is the odd one out: 61, 37, 70, 89? (a) 61 (b) 37 (c) 70 (d) 89
  15. 15.Which number is the odd one out: 79, 43, 41, 51? (a) 79 (b) 43 (c) 41 (d) 51
  16. 16.Which number is the odd one out: 13, 31, 56, 97? (a) 13 (b) 31 (c) 56 (d) 97
  17. 17.Which number is the odd one out: 13, 75, 19, 37? (a) 13 (b) 75 (c) 19 (d) 37
  18. 18.Which number is the odd one out: 69, 11, 61, 89? (a) 69 (b) 11 (c) 61 (d) 89
  19. 19.Which number is the odd one out: 41, 5, 30, 13? (a) 41 (b) 5 (c) 30 (d) 13
  20. 20.Which number is the odd one out: 42, 23, 61, 19? (a) 42 (b) 23 (c) 61 (d) 19
  21. 21.Which number is the odd one out: 97, 71, 25, 11? (a) 97 (b) 71 (c) 25 (d) 11
  22. 22.Which number is the odd one out: 31, 16, 19, 23? (a) 31 (b) 16 (c) 19 (d) 23
  23. 23.Which number is the odd one out: 17, 61, 45, 19? (a) 17 (b) 61 (c) 45 (d) 19
  24. 24.Which number is the odd one out: 97, 40, 80, 44? (a) 97 (b) 40 (c) 80 (d) 44
  25. 25.Which number is the odd one out: 13, 19, 97, 52? (a) 13 (b) 19 (c) 97 (d) 52
  26. 26.Which number is the odd one out: 11, 13, 80, 65? (a) 11 (b) 13 (c) 80 (d) 65
  27. 27.Which number is the odd one out: 41, 29, 89, 49? (a) 41 (b) 29 (c) 89 (d) 49
  28. 28.Which number is the odd one out: 73, 13, 92, 61? (a) 73 (b) 13 (c) 92 (d) 61
  29. 29.Which number is the odd one out: 71, 17, 47, 64? (a) 71 (b) 17 (c) 47 (d) 64
  30. 30.Which number is the odd one out: 11, 69, 67, 29? (a) 11 (b) 69 (c) 67 (d) 29
  31. 31.Which number is the odd one out: 65, 53, 31, 29? (a) 65 (b) 53 (c) 31 (d) 29
  32. 32.Which number is the odd one out: 93, 13, 71, 48? (a) 93 (b) 13 (c) 71 (d) 48
  33. 33.Which number is the odd one out: 9, 67, 47, 23? (a) 9 (b) 67 (c) 47 (d) 23
  34. 34.Which number is the odd one out: 23, 13, 50, 17? (a) 23 (b) 13 (c) 50 (d) 17
  35. 35.Which number is the odd one out: 61, 43, 73, 28? (a) 61 (b) 43 (c) 73 (d) 28
  36. 36.Which number is the odd one out: 10, 71, 2, 79? (a) 10 (b) 71 (c) 2 (d) 79
  37. 37.Which number is the odd one out: 47, 72, 31, 53? (a) 47 (b) 72 (c) 31 (d) 53
  38. 38.Which number is the odd one out: 17, 94, 23, 41? (a) 17 (b) 94 (c) 23 (d) 41
  39. 39.Which number is the odd one out: 56, 47, 53, 59? (a) 56 (b) 47 (c) 53 (d) 59
  40. 40.Which number is the odd one out: 86, 53, 17, 37? (a) 86 (b) 53 (c) 17 (d) 37

Answer key

  1. 24
  2. 42
  3. 2
  4. 27
  5. 43
  6. 44
  7. 42
  8. 84
  9. 48
  10. 85
  11. 72
  12. 73
  13. 76
  14. 70
  15. 51
  16. 56
  17. 75
  18. 69
  19. 30
  20. 42
  21. 25
  22. 16
  23. 45
  24. 97
  25. 52
  26. 80
  27. 49
  28. 92
  29. 64
  30. 69
  31. 65
  32. 48
  33. 9
  34. 50
  35. 28
  36. 10
  37. 72
  38. 94
  39. 56
  40. 86

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