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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 23 · 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, 86, 61, 37? (a) 13 (b) 86 (c) 61 (d) 37
  2. 2.Which number is the odd one out: 85, 64, 16, 25? (a) 85 (b) 64 (c) 16 (d) 25
  3. 3.Which number is the odd one out: 59, 37, 43, 36? (a) 59 (b) 37 (c) 43 (d) 36
  4. 4.Which number is the odd one out: 83, 43, 30, 47? (a) 83 (b) 43 (c) 30 (d) 47
  5. 5.Which number is the odd one out: 6, 19, 23, 47? (a) 6 (b) 19 (c) 23 (d) 47
  6. 6.Which number is the odd one out: 95, 15, 72, 20? (a) 95 (b) 15 (c) 72 (d) 20
  7. 7.Which number is the odd one out: 67, 73, 47, 63? (a) 67 (b) 73 (c) 47 (d) 63
  8. 8.Which number is the odd one out: 83, 42, 53, 17? (a) 83 (b) 42 (c) 53 (d) 17
  9. 9.Which number is the odd one out: 19, 97, 11, 50? (a) 19 (b) 97 (c) 11 (d) 50
  10. 10.Which number is the odd one out: 41, 79, 32, 2? (a) 41 (b) 79 (c) 32 (d) 2
  11. 11.Which number is the odd one out: 67, 32, 91, 7? (a) 67 (b) 32 (c) 91 (d) 7
  12. 12.Which number is the odd one out: 13, 80, 79, 53? (a) 13 (b) 80 (c) 79 (d) 53
  13. 13.Which number is the odd one out: 72, 48, 79, 54? (a) 72 (b) 48 (c) 79 (d) 54
  14. 14.Which number is the odd one out: 99, 54, 42, 27? (a) 99 (b) 54 (c) 42 (d) 27
  15. 15.Which number is the odd one out: 19, 17, 81, 67? (a) 19 (b) 17 (c) 81 (d) 67
  16. 16.Which number is the odd one out: 71, 79, 19, 44? (a) 71 (b) 79 (c) 19 (d) 44
  17. 17.Which number is the odd one out: 59, 9, 67, 17? (a) 59 (b) 9 (c) 67 (d) 17
  18. 18.Which number is the odd one out: 60, 89, 41, 59? (a) 60 (b) 89 (c) 41 (d) 59
  19. 19.Which number is the odd one out: 89, 2, 61, 78? (a) 89 (b) 2 (c) 61 (d) 78
  20. 20.Which number is the odd one out: 80, 85, 88, 32? (a) 80 (b) 85 (c) 88 (d) 32
  21. 21.Which number is the odd one out: 47, 59, 42, 7? (a) 47 (b) 59 (c) 42 (d) 7
  22. 22.Which number is the odd one out: 30, 61, 41, 23? (a) 30 (b) 61 (c) 41 (d) 23
  23. 23.Which number is the odd one out: 2, 31, 73, 82? (a) 2 (b) 31 (c) 73 (d) 82
  24. 24.Which number is the odd one out: 59, 23, 2, 82? (a) 59 (b) 23 (c) 2 (d) 82
  25. 25.Which number is the odd one out: 17, 69, 19, 61? (a) 17 (b) 69 (c) 19 (d) 61
  26. 26.Which number is the odd one out: 59, 24, 19, 71? (a) 59 (b) 24 (c) 19 (d) 71
  27. 27.Which number is the odd one out: 22, 47, 59, 83? (a) 22 (b) 47 (c) 59 (d) 83
  28. 28.Which number is the odd one out: 95, 31, 59, 41? (a) 95 (b) 31 (c) 59 (d) 41
  29. 29.Which number is the odd one out: 23, 29, 17, 66? (a) 23 (b) 29 (c) 17 (d) 66
  30. 30.Which number is the odd one out: 68, 97, 71, 61? (a) 68 (b) 97 (c) 71 (d) 61
  31. 31.Which number is the odd one out: 37, 97, 72, 31? (a) 37 (b) 97 (c) 72 (d) 31
  32. 32.Which number is the odd one out: 24, 96, 65, 88? (a) 24 (b) 96 (c) 65 (d) 88
  33. 33.Which number is the odd one out: 24, 27, 72, 48? (a) 24 (b) 27 (c) 72 (d) 48
  34. 34.Which number is the odd one out: 53, 15, 71, 83? (a) 53 (b) 15 (c) 71 (d) 83
  35. 35.Which number is the odd one out: 76, 17, 67, 71? (a) 76 (b) 17 (c) 67 (d) 71
  36. 36.Which number is the odd one out: 42, 53, 59, 39? (a) 42 (b) 53 (c) 59 (d) 39
  37. 37.Which number is the odd one out: 12, 20, 83, 30? (a) 12 (b) 20 (c) 83 (d) 30
  38. 38.Which number is the odd one out: 13, 41, 85, 50? (a) 13 (b) 41 (c) 85 (d) 50
  39. 39.Which number is the odd one out: 13, 71, 65, 53? (a) 13 (b) 71 (c) 65 (d) 53
  40. 40.Which number is the odd one out: 2, 24, 37, 3? (a) 2 (b) 24 (c) 37 (d) 3

Answer key

  1. 86
  2. 85
  3. 36
  4. 30
  5. 6
  6. 72
  7. 63
  8. 42
  9. 50
  10. 32
  11. 32
  12. 80
  13. 79
  14. 42
  15. 81
  16. 44
  17. 9
  18. 60
  19. 78
  20. 85
  21. 42
  22. 30
  23. 82
  24. 82
  25. 69
  26. 24
  27. 22
  28. 95
  29. 66
  30. 68
  31. 72
  32. 65
  33. 27
  34. 15
  35. 76
  36. 42
  37. 83
  38. 50
  39. 65
  40. 24

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