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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 681 · 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: 2, 32, 56, 28? (a) 2 (b) 32 (c) 56 (d) 28
  2. 2.Which number is the odd one out: 36, 13, 11, 2? (a) 36 (b) 13 (c) 11 (d) 2
  3. 3.Which number is the odd one out: 80, 24, 30, 88? (a) 80 (b) 24 (c) 30 (d) 88
  4. 4.Which number is the odd one out: 57, 21, 98, 14? (a) 57 (b) 21 (c) 98 (d) 14
  5. 5.Which number is the odd one out: 52, 97, 41, 73? (a) 52 (b) 97 (c) 41 (d) 73
  6. 6.Which number is the odd one out: 31, 58, 37, 13? (a) 31 (b) 58 (c) 37 (d) 13
  7. 7.Which number is the odd one out: 23, 47, 6, 19? (a) 23 (b) 47 (c) 6 (d) 19
  8. 8.Which number is the odd one out: 85, 53, 29, 79? (a) 85 (b) 53 (c) 29 (d) 79
  9. 9.Which number is the odd one out: 29, 19, 90, 27? (a) 29 (b) 19 (c) 90 (d) 27
  10. 10.Which number is the odd one out: 11, 2, 13, 94? (a) 11 (b) 2 (c) 13 (d) 94
  11. 11.Which number is the odd one out: 31, 37, 23, 33? (a) 31 (b) 37 (c) 23 (d) 33
  12. 12.Which number is the odd one out: 52, 22, 96, 24? (a) 52 (b) 22 (c) 96 (d) 24
  13. 13.Which number is the odd one out: 61, 69, 19, 71? (a) 61 (b) 69 (c) 19 (d) 71
  14. 14.Which number is the odd one out: 28, 83, 17, 71? (a) 28 (b) 83 (c) 17 (d) 71
  15. 15.Which number is the odd one out: 19, 71, 34, 67? (a) 19 (b) 71 (c) 34 (d) 67
  16. 16.Which number is the odd one out: 18, 6, 26, 54? (a) 18 (b) 6 (c) 26 (d) 54
  17. 17.Which number is the odd one out: 34, 79, 37, 67? (a) 34 (b) 79 (c) 37 (d) 67
  18. 18.Which number is the odd one out: 87, 82, 83, 3? (a) 87 (b) 82 (c) 83 (d) 3
  19. 19.Which number is the odd one out: 83, 73, 31, 60? (a) 83 (b) 73 (c) 31 (d) 60
  20. 20.Which number is the odd one out: 29, 23, 24, 31? (a) 29 (b) 23 (c) 24 (d) 31
  21. 21.Which number is the odd one out: 58, 53, 61, 37? (a) 58 (b) 53 (c) 61 (d) 37
  22. 22.Which number is the odd one out: 23, 29, 76, 37? (a) 23 (b) 29 (c) 76 (d) 37
  23. 23.Which number is the odd one out: 70, 35, 48, 65? (a) 70 (b) 35 (c) 48 (d) 65
  24. 24.Which number is the odd one out: 40, 92, 8, 45? (a) 40 (b) 92 (c) 8 (d) 45
  25. 25.Which number is the odd one out: 34, 30, 60, 12? (a) 34 (b) 30 (c) 60 (d) 12
  26. 26.Which number is the odd one out: 2, 73, 64, 41? (a) 2 (b) 73 (c) 64 (d) 41
  27. 27.Which number is the odd one out: 97, 71, 72, 2? (a) 97 (b) 71 (c) 72 (d) 2
  28. 28.Which number is the odd one out: 79, 19, 31, 26? (a) 79 (b) 19 (c) 31 (d) 26
  29. 29.Which number is the odd one out: 5, 88, 8, 40? (a) 5 (b) 88 (c) 8 (d) 40
  30. 30.Which number is the odd one out: 53, 17, 18, 71? (a) 53 (b) 17 (c) 18 (d) 71
  31. 31.Which number is the odd one out: 42, 11, 3, 23? (a) 42 (b) 11 (c) 3 (d) 23
  32. 32.Which number is the odd one out: 96, 46, 24, 48? (a) 96 (b) 46 (c) 24 (d) 48
  33. 33.Which number is the odd one out: 60, 41, 61, 23? (a) 60 (b) 41 (c) 61 (d) 23
  34. 34.Which number is the odd one out: 64, 16, 99, 81? (a) 64 (b) 16 (c) 99 (d) 81
  35. 35.Which number is the odd one out: 11, 61, 73, 40? (a) 11 (b) 61 (c) 73 (d) 40
  36. 36.Which number is the odd one out: 19, 72, 3, 47? (a) 19 (b) 72 (c) 3 (d) 47
  37. 37.Which number is the odd one out: 12, 73, 71, 29? (a) 12 (b) 73 (c) 71 (d) 29
  38. 38.Which number is the odd one out: 86, 23, 74, 82? (a) 86 (b) 23 (c) 74 (d) 82
  39. 39.Which number is the odd one out: 59, 17, 97, 16? (a) 59 (b) 17 (c) 97 (d) 16
  40. 40.Which number is the odd one out: 71, 67, 19, 27? (a) 71 (b) 67 (c) 19 (d) 27

Answer key

  1. 2
  2. 36
  3. 30
  4. 57
  5. 52
  6. 58
  7. 6
  8. 85
  9. 90
  10. 94
  11. 33
  12. 22
  13. 69
  14. 28
  15. 34
  16. 26
  17. 34
  18. 82
  19. 60
  20. 24
  21. 58
  22. 76
  23. 48
  24. 45
  25. 34
  26. 64
  27. 72
  28. 26
  29. 5
  30. 18
  31. 42
  32. 46
  33. 60
  34. 99
  35. 40
  36. 72
  37. 12
  38. 23
  39. 16
  40. 27

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