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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 998 · 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: 24, 78, 75, 96? (a) 24 (b) 78 (c) 75 (d) 96
  2. 2.Which number is the odd one out: 96, 32, 42, 88? (a) 96 (b) 32 (c) 42 (d) 88
  3. 3.Which number is the odd one out: 13, 19, 53, 28? (a) 13 (b) 19 (c) 53 (d) 28
  4. 4.Which number is the odd one out: 4, 59, 47, 79? (a) 4 (b) 59 (c) 47 (d) 79
  5. 5.Which number is the odd one out: 79, 12, 89, 37? (a) 79 (b) 12 (c) 89 (d) 37
  6. 6.Which number is the odd one out: 17, 43, 67, 28? (a) 17 (b) 43 (c) 67 (d) 28
  7. 7.Which number is the odd one out: 73, 74, 41, 67? (a) 73 (b) 74 (c) 41 (d) 67
  8. 8.Which number is the odd one out: 97, 15, 23, 31? (a) 97 (b) 15 (c) 23 (d) 31
  9. 9.Which number is the odd one out: 73, 79, 55, 20? (a) 73 (b) 79 (c) 55 (d) 20
  10. 10.Which number is the odd one out: 60, 29, 2, 41? (a) 60 (b) 29 (c) 2 (d) 41
  11. 11.Which number is the odd one out: 2, 23, 83, 20? (a) 2 (b) 23 (c) 83 (d) 20
  12. 12.Which number is the odd one out: 48, 13, 78, 96? (a) 48 (b) 13 (c) 78 (d) 96
  13. 13.Which number is the odd one out: 88, 76, 85, 8? (a) 88 (b) 76 (c) 85 (d) 8
  14. 14.Which number is the odd one out: 80, 35, 32, 52? (a) 80 (b) 35 (c) 32 (d) 52
  15. 15.Which number is the odd one out: 29, 61, 78, 13? (a) 29 (b) 61 (c) 78 (d) 13
  16. 16.Which number is the odd one out: 9, 81, 96, 99? (a) 9 (b) 81 (c) 96 (d) 99
  17. 17.Which number is the odd one out: 98, 29, 23, 73? (a) 98 (b) 29 (c) 23 (d) 73
  18. 18.Which number is the odd one out: 36, 53, 17, 37? (a) 36 (b) 53 (c) 17 (d) 37
  19. 19.Which number is the odd one out: 49, 47, 29, 19? (a) 49 (b) 47 (c) 29 (d) 19
  20. 20.Which number is the odd one out: 27, 99, 49, 9? (a) 27 (b) 99 (c) 49 (d) 9
  21. 21.Which number is the odd one out: 34, 55, 50, 65? (a) 34 (b) 55 (c) 50 (d) 65
  22. 22.Which number is the odd one out: 14, 32, 56, 93? (a) 14 (b) 32 (c) 56 (d) 93
  23. 23.Which number is the odd one out: 83, 2, 28, 31? (a) 83 (b) 2 (c) 28 (d) 31
  24. 24.Which number is the odd one out: 19, 43, 13, 24? (a) 19 (b) 43 (c) 13 (d) 24
  25. 25.Which number is the odd one out: 17, 69, 71, 59? (a) 17 (b) 69 (c) 71 (d) 59
  26. 26.Which number is the odd one out: 84, 25, 56, 24? (a) 84 (b) 25 (c) 56 (d) 24
  27. 27.Which number is the odd one out: 85, 90, 18, 54? (a) 85 (b) 90 (c) 18 (d) 54
  28. 28.Which number is the odd one out: 44, 54, 12, 92? (a) 44 (b) 54 (c) 12 (d) 92
  29. 29.Which number is the odd one out: 37, 19, 41, 20? (a) 37 (b) 19 (c) 41 (d) 20
  30. 30.Which number is the odd one out: 73, 11, 72, 43? (a) 73 (b) 11 (c) 72 (d) 43
  31. 31.Which number is the odd one out: 31, 66, 73, 79? (a) 31 (b) 66 (c) 73 (d) 79
  32. 32.Which number is the odd one out: 16, 91, 64, 49? (a) 16 (b) 91 (c) 64 (d) 49
  33. 33.Which number is the odd one out: 81, 53, 9, 27? (a) 81 (b) 53 (c) 9 (d) 27
  34. 34.Which number is the odd one out: 89, 59, 20, 67? (a) 89 (b) 59 (c) 20 (d) 67
  35. 35.Which number is the odd one out: 30, 23, 89, 3? (a) 30 (b) 23 (c) 89 (d) 3
  36. 36.Which number is the odd one out: 17, 11, 83, 72? (a) 17 (b) 11 (c) 83 (d) 72
  37. 37.Which number is the odd one out: 11, 73, 79, 12? (a) 11 (b) 73 (c) 79 (d) 12
  38. 38.Which number is the odd one out: 96, 14, 76, 24? (a) 96 (b) 14 (c) 76 (d) 24
  39. 39.Which number is the odd one out: 21, 63, 64, 9? (a) 21 (b) 63 (c) 64 (d) 9
  40. 40.Which number is the odd one out: 65, 17, 73, 97? (a) 65 (b) 17 (c) 73 (d) 97

Answer key

  1. 75
  2. 42
  3. 28
  4. 4
  5. 12
  6. 28
  7. 74
  8. 15
  9. 20
  10. 60
  11. 20
  12. 13
  13. 85
  14. 35
  15. 78
  16. 96
  17. 98
  18. 36
  19. 49
  20. 49
  21. 34
  22. 93
  23. 28
  24. 24
  25. 69
  26. 25
  27. 85
  28. 54
  29. 20
  30. 72
  31. 66
  32. 91
  33. 53
  34. 20
  35. 30
  36. 72
  37. 12
  38. 14
  39. 64
  40. 65

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