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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 732 · 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: 13, 91, 17, 53? (a) 13 (b) 91 (c) 17 (d) 53
  2. 2.Which number is the odd one out: 77, 17, 13, 59? (a) 77 (b) 17 (c) 13 (d) 59
  3. 3.Which number is the odd one out: 71, 11, 67, 96? (a) 71 (b) 11 (c) 67 (d) 96
  4. 4.Which number is the odd one out: 83, 17, 49, 7? (a) 83 (b) 17 (c) 49 (d) 7
  5. 5.Which number is the odd one out: 47, 9, 41, 83? (a) 47 (b) 9 (c) 41 (d) 83
  6. 6.Which number is the odd one out: 42, 25, 63, 54? (a) 42 (b) 25 (c) 63 (d) 54
  7. 7.Which number is the odd one out: 59, 97, 42, 13? (a) 59 (b) 97 (c) 42 (d) 13
  8. 8.Which number is the odd one out: 23, 72, 48, 18? (a) 23 (b) 72 (c) 48 (d) 18
  9. 9.Which number is the odd one out: 38, 47, 43, 37? (a) 38 (b) 47 (c) 43 (d) 37
  10. 10.Which number is the odd one out: 36, 9, 81, 48? (a) 36 (b) 9 (c) 81 (d) 48
  11. 11.Which number is the odd one out: 19, 87, 61, 73? (a) 19 (b) 87 (c) 61 (d) 73
  12. 12.Which number is the odd one out: 11, 61, 84, 41? (a) 11 (b) 61 (c) 84 (d) 41
  13. 13.Which number is the odd one out: 24, 32, 12, 35? (a) 24 (b) 32 (c) 12 (d) 35
  14. 14.Which number is the odd one out: 61, 41, 71, 69? (a) 61 (b) 41 (c) 71 (d) 69
  15. 15.Which number is the odd one out: 40, 24, 55, 48? (a) 40 (b) 24 (c) 55 (d) 48
  16. 16.Which number is the odd one out: 34, 99, 38, 86? (a) 34 (b) 99 (c) 38 (d) 86
  17. 17.Which number is the odd one out: 64, 99, 51, 81? (a) 64 (b) 99 (c) 51 (d) 81
  18. 18.Which number is the odd one out: 19, 11, 84, 73? (a) 19 (b) 11 (c) 84 (d) 73
  19. 19.Which number is the odd one out: 81, 9, 5, 99? (a) 81 (b) 9 (c) 5 (d) 99
  20. 20.Which number is the odd one out: 96, 88, 7, 42? (a) 96 (b) 88 (c) 7 (d) 42
  21. 21.Which number is the odd one out: 24, 39, 48, 49? (a) 24 (b) 39 (c) 48 (d) 49
  22. 22.Which number is the odd one out: 19, 73, 83, 22? (a) 19 (b) 73 (c) 83 (d) 22
  23. 23.Which number is the odd one out: 83, 67, 46, 2? (a) 83 (b) 67 (c) 46 (d) 2
  24. 24.Which number is the odd one out: 61, 27, 81, 9? (a) 61 (b) 27 (c) 81 (d) 9
  25. 25.Which number is the odd one out: 13, 73, 71, 80? (a) 13 (b) 73 (c) 71 (d) 80
  26. 26.Which number is the odd one out: 31, 83, 78, 53? (a) 31 (b) 83 (c) 78 (d) 53
  27. 27.Which number is the odd one out: 67, 38, 19, 11? (a) 67 (b) 38 (c) 19 (d) 11
  28. 28.Which number is the odd one out: 86, 50, 95, 65? (a) 86 (b) 50 (c) 95 (d) 65
  29. 29.Which number is the odd one out: 79, 23, 12, 53? (a) 79 (b) 23 (c) 12 (d) 53
  30. 30.Which number is the odd one out: 99, 97, 37, 83? (a) 99 (b) 97 (c) 37 (d) 83
  31. 31.Which number is the odd one out: 9, 25, 85, 81? (a) 9 (b) 25 (c) 85 (d) 81
  32. 32.Which number is the odd one out: 72, 19, 89, 43? (a) 72 (b) 19 (c) 89 (d) 43
  33. 33.Which number is the odd one out: 46, 82, 38, 15? (a) 46 (b) 82 (c) 38 (d) 15
  34. 34.Which number is the odd one out: 2, 79, 73, 36? (a) 2 (b) 79 (c) 73 (d) 36
  35. 35.Which number is the odd one out: 61, 73, 19, 66? (a) 61 (b) 73 (c) 19 (d) 66
  36. 36.Which number is the odd one out: 32, 48, 77, 24? (a) 32 (b) 48 (c) 77 (d) 24
  37. 37.Which number is the odd one out: 22, 96, 24, 48? (a) 22 (b) 96 (c) 24 (d) 48
  38. 38.Which number is the odd one out: 7, 91, 3, 24? (a) 7 (b) 91 (c) 3 (d) 24
  39. 39.Which number is the odd one out: 64, 4, 95, 40? (a) 64 (b) 4 (c) 95 (d) 40
  40. 40.Which number is the odd one out: 71, 19, 75, 89? (a) 71 (b) 19 (c) 75 (d) 89

Answer key

  1. 91
  2. 77
  3. 96
  4. 49
  5. 9
  6. 25
  7. 42
  8. 23
  9. 38
  10. 48
  11. 87
  12. 84
  13. 35
  14. 69
  15. 55
  16. 99
  17. 64
  18. 84
  19. 5
  20. 7
  21. 49
  22. 22
  23. 46
  24. 61
  25. 80
  26. 78
  27. 38
  28. 86
  29. 12
  30. 99
  31. 85
  32. 72
  33. 15
  34. 36
  35. 66
  36. 77
  37. 22
  38. 24
  39. 95
  40. 75

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