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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 318 · 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: 17, 3, 83, 27? (a) 17 (b) 3 (c) 83 (d) 27
  2. 2.Which number is the odd one out: 29, 9, 37, 79? (a) 29 (b) 9 (c) 37 (d) 79
  3. 3.Which number is the odd one out: 66, 48, 74, 24? (a) 66 (b) 48 (c) 74 (d) 24
  4. 4.Which number is the odd one out: 16, 79, 61, 13? (a) 16 (b) 79 (c) 61 (d) 13
  5. 5.Which number is the odd one out: 5, 13, 73, 30? (a) 5 (b) 13 (c) 73 (d) 30
  6. 6.Which number is the odd one out: 3, 87, 67, 53? (a) 3 (b) 87 (c) 67 (d) 53
  7. 7.Which number is the odd one out: 88, 32, 8, 98? (a) 88 (b) 32 (c) 8 (d) 98
  8. 8.Which number is the odd one out: 5, 53, 65, 31? (a) 5 (b) 53 (c) 65 (d) 31
  9. 9.Which number is the odd one out: 65, 15, 10, 42? (a) 65 (b) 15 (c) 10 (d) 42
  10. 10.Which number is the odd one out: 93, 29, 71, 23? (a) 93 (b) 29 (c) 71 (d) 23
  11. 11.Which number is the odd one out: 89, 43, 40, 2? (a) 89 (b) 43 (c) 40 (d) 2
  12. 12.Which number is the odd one out: 73, 85, 71, 19? (a) 73 (b) 85 (c) 71 (d) 19
  13. 13.Which number is the odd one out: 4, 16, 64, 30? (a) 4 (b) 16 (c) 64 (d) 30
  14. 14.Which number is the odd one out: 19, 35, 41, 73? (a) 19 (b) 35 (c) 41 (d) 73
  15. 15.Which number is the odd one out: 74, 57, 75, 15? (a) 74 (b) 57 (c) 75 (d) 15
  16. 16.Which number is the odd one out: 10, 8, 24, 96? (a) 10 (b) 8 (c) 24 (d) 96
  17. 17.Which number is the odd one out: 47, 83, 49, 73? (a) 47 (b) 83 (c) 49 (d) 73
  18. 18.Which number is the odd one out: 23, 72, 61, 17? (a) 23 (b) 72 (c) 61 (d) 17
  19. 19.Which number is the odd one out: 55, 52, 65, 20? (a) 55 (b) 52 (c) 65 (d) 20
  20. 20.Which number is the odd one out: 29, 59, 18, 2? (a) 29 (b) 59 (c) 18 (d) 2
  21. 21.Which number is the odd one out: 38, 96, 32, 48? (a) 38 (b) 96 (c) 32 (d) 48
  22. 22.Which number is the odd one out: 70, 19, 17, 37? (a) 70 (b) 19 (c) 17 (d) 37
  23. 23.Which number is the odd one out: 81, 9, 74, 99? (a) 81 (b) 9 (c) 74 (d) 99
  24. 24.Which number is the odd one out: 13, 11, 19, 86? (a) 13 (b) 11 (c) 19 (d) 86
  25. 25.Which number is the odd one out: 71, 89, 79, 76? (a) 71 (b) 89 (c) 79 (d) 76
  26. 26.Which number is the odd one out: 91, 92, 14, 68? (a) 91 (b) 92 (c) 14 (d) 68
  27. 27.Which number is the odd one out: 27, 43, 54, 18? (a) 27 (b) 43 (c) 54 (d) 18
  28. 28.Which number is the odd one out: 2, 32, 88, 47? (a) 2 (b) 32 (c) 88 (d) 47
  29. 29.Which number is the odd one out: 67, 51, 47, 83? (a) 67 (b) 51 (c) 47 (d) 83
  30. 30.Which number is the odd one out: 13, 18, 53, 37? (a) 13 (b) 18 (c) 53 (d) 37
  31. 31.Which number is the odd one out: 66, 19, 32, 24? (a) 66 (b) 19 (c) 32 (d) 24
  32. 32.Which number is the odd one out: 59, 60, 19, 17? (a) 59 (b) 60 (c) 19 (d) 17
  33. 33.Which number is the odd one out: 74, 10, 75, 15? (a) 74 (b) 10 (c) 75 (d) 15
  34. 34.Which number is the odd one out: 97, 82, 17, 73? (a) 97 (b) 82 (c) 17 (d) 73
  35. 35.Which number is the odd one out: 23, 17, 20, 73? (a) 23 (b) 17 (c) 20 (d) 73
  36. 36.Which number is the odd one out: 35, 24, 90, 72? (a) 35 (b) 24 (c) 90 (d) 72
  37. 37.Which number is the odd one out: 41, 93, 47, 89? (a) 41 (b) 93 (c) 47 (d) 89
  38. 38.Which number is the odd one out: 61, 36, 11, 2? (a) 61 (b) 36 (c) 11 (d) 2
  39. 39.Which number is the odd one out: 67, 31, 73, 4? (a) 67 (b) 31 (c) 73 (d) 4
  40. 40.Which number is the odd one out: 61, 28, 2, 37? (a) 61 (b) 28 (c) 2 (d) 37

Answer key

  1. 27
  2. 9
  3. 74
  4. 16
  5. 30
  6. 87
  7. 98
  8. 65
  9. 42
  10. 93
  11. 40
  12. 85
  13. 30
  14. 35
  15. 74
  16. 10
  17. 49
  18. 72
  19. 52
  20. 18
  21. 38
  22. 70
  23. 74
  24. 86
  25. 76
  26. 91
  27. 43
  28. 47
  29. 51
  30. 18
  31. 19
  32. 60
  33. 74
  34. 82
  35. 20
  36. 35
  37. 93
  38. 36
  39. 4
  40. 28

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