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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 31 · 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: 78, 54, 18, 83? (a) 78 (b) 54 (c) 18 (d) 83
  2. 2.Which number is the odd one out: 47, 67, 31, 57? (a) 47 (b) 67 (c) 31 (d) 57
  3. 3.Which number is the odd one out: 89, 39, 53, 13? (a) 89 (b) 39 (c) 53 (d) 13
  4. 4.Which number is the odd one out: 11, 10, 67, 79? (a) 11 (b) 10 (c) 67 (d) 79
  5. 5.Which number is the odd one out: 43, 64, 71, 17? (a) 43 (b) 64 (c) 71 (d) 17
  6. 6.Which number is the odd one out: 44, 88, 32, 53? (a) 44 (b) 88 (c) 32 (d) 53
  7. 7.Which number is the odd one out: 66, 50, 85, 15? (a) 66 (b) 50 (c) 85 (d) 15
  8. 8.Which number is the odd one out: 29, 69, 97, 11? (a) 29 (b) 69 (c) 97 (d) 11
  9. 9.Which number is the odd one out: 17, 61, 83, 22? (a) 17 (b) 61 (c) 83 (d) 22
  10. 10.Which number is the odd one out: 96, 72, 18, 3? (a) 96 (b) 72 (c) 18 (d) 3
  11. 11.Which number is the odd one out: 71, 29, 96, 31? (a) 71 (b) 29 (c) 96 (d) 31
  12. 12.Which number is the odd one out: 2, 17, 80, 13? (a) 2 (b) 17 (c) 80 (d) 13
  13. 13.Which number is the odd one out: 83, 8, 2, 61? (a) 83 (b) 8 (c) 2 (d) 61
  14. 14.Which number is the odd one out: 83, 7, 19, 70? (a) 83 (b) 7 (c) 19 (d) 70
  15. 15.Which number is the odd one out: 73, 56, 84, 24? (a) 73 (b) 56 (c) 84 (d) 24
  16. 16.Which number is the odd one out: 41, 31, 75, 53? (a) 41 (b) 31 (c) 75 (d) 53
  17. 17.Which number is the odd one out: 53, 5, 20, 19? (a) 53 (b) 5 (c) 20 (d) 19
  18. 18.Which number is the odd one out: 16, 88, 19, 64? (a) 16 (b) 88 (c) 19 (d) 64
  19. 19.Which number is the odd one out: 73, 94, 11, 83? (a) 73 (b) 94 (c) 11 (d) 83
  20. 20.Which number is the odd one out: 79, 61, 11, 36? (a) 79 (b) 61 (c) 11 (d) 36
  21. 21.Which number is the odd one out: 73, 85, 83, 47? (a) 73 (b) 85 (c) 83 (d) 47
  22. 22.Which number is the odd one out: 79, 3, 19, 9? (a) 79 (b) 3 (c) 19 (d) 9
  23. 23.Which number is the odd one out: 82, 48, 96, 32? (a) 82 (b) 48 (c) 96 (d) 32
  24. 24.Which number is the odd one out: 17, 6, 73, 61? (a) 17 (b) 6 (c) 73 (d) 61
  25. 25.Which number is the odd one out: 72, 47, 17, 31? (a) 72 (b) 47 (c) 17 (d) 31
  26. 26.Which number is the odd one out: 41, 39, 73, 78? (a) 41 (b) 39 (c) 73 (d) 78
  27. 27.Which number is the odd one out: 99, 43, 19, 13? (a) 99 (b) 43 (c) 19 (d) 13
  28. 28.Which number is the odd one out: 58, 23, 37, 43? (a) 58 (b) 23 (c) 37 (d) 43
  29. 29.Which number is the odd one out: 96, 5, 24, 80? (a) 96 (b) 5 (c) 24 (d) 80
  30. 30.Which number is the odd one out: 16, 64, 91, 4? (a) 16 (b) 64 (c) 91 (d) 4
  31. 31.Which number is the odd one out: 29, 17, 19, 26? (a) 29 (b) 17 (c) 19 (d) 26
  32. 32.Which number is the odd one out: 33, 52, 95, 15? (a) 33 (b) 52 (c) 95 (d) 15
  33. 33.Which number is the odd one out: 13, 78, 6, 33? (a) 13 (b) 78 (c) 6 (d) 33
  34. 34.Which number is the odd one out: 97, 77, 47, 7? (a) 97 (b) 77 (c) 47 (d) 7
  35. 35.Which number is the odd one out: 48, 46, 29, 24? (a) 48 (b) 46 (c) 29 (d) 24
  36. 36.Which number is the odd one out: 19, 27, 31, 59? (a) 19 (b) 27 (c) 31 (d) 59
  37. 37.Which number is the odd one out: 75, 24, 60, 96? (a) 75 (b) 24 (c) 60 (d) 96
  38. 38.Which number is the odd one out: 28, 97, 17, 47? (a) 28 (b) 97 (c) 17 (d) 47
  39. 39.Which number is the odd one out: 73, 34, 47, 83? (a) 73 (b) 34 (c) 47 (d) 83
  40. 40.Which number is the odd one out: 11, 71, 31, 26? (a) 11 (b) 71 (c) 31 (d) 26

Answer key

  1. 83
  2. 57
  3. 39
  4. 10
  5. 64
  6. 53
  7. 66
  8. 69
  9. 22
  10. 3
  11. 96
  12. 80
  13. 8
  14. 70
  15. 73
  16. 75
  17. 20
  18. 19
  19. 94
  20. 36
  21. 85
  22. 9
  23. 82
  24. 6
  25. 72
  26. 78
  27. 99
  28. 58
  29. 5
  30. 91
  31. 26
  32. 52
  33. 13
  34. 77
  35. 29
  36. 27
  37. 75
  38. 28
  39. 34
  40. 26

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