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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 77 · 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: 75, 67, 61, 29? (a) 75 (b) 67 (c) 61 (d) 29
  2. 2.Which number is the odd one out: 48, 32, 60, 8? (a) 48 (b) 32 (c) 60 (d) 8
  3. 3.Which number is the odd one out: 31, 66, 2, 73? (a) 31 (b) 66 (c) 2 (d) 73
  4. 4.Which number is the odd one out: 53, 97, 23, 85? (a) 53 (b) 97 (c) 23 (d) 85
  5. 5.Which number is the odd one out: 24, 16, 4, 48? (a) 24 (b) 16 (c) 4 (d) 48
  6. 6.Which number is the odd one out: 2, 31, 47, 76? (a) 2 (b) 31 (c) 47 (d) 76
  7. 7.Which number is the odd one out: 29, 22, 19, 17? (a) 29 (b) 22 (c) 19 (d) 17
  8. 8.Which number is the odd one out: 61, 48, 17, 19? (a) 61 (b) 48 (c) 17 (d) 19
  9. 9.Which number is the odd one out: 41, 80, 11, 83? (a) 41 (b) 80 (c) 11 (d) 83
  10. 10.Which number is the odd one out: 19, 11, 16, 73? (a) 19 (b) 11 (c) 16 (d) 73
  11. 11.Which number is the odd one out: 85, 31, 43, 11? (a) 85 (b) 31 (c) 43 (d) 11
  12. 12.Which number is the odd one out: 5, 24, 44, 48? (a) 5 (b) 24 (c) 44 (d) 48
  13. 13.Which number is the odd one out: 86, 13, 43, 31? (a) 86 (b) 13 (c) 43 (d) 31
  14. 14.Which number is the odd one out: 71, 19, 2, 14? (a) 71 (b) 19 (c) 2 (d) 14
  15. 15.Which number is the odd one out: 43, 23, 59, 75? (a) 43 (b) 23 (c) 59 (d) 75
  16. 16.Which number is the odd one out: 82, 43, 59, 61? (a) 82 (b) 43 (c) 59 (d) 61
  17. 17.Which number is the odd one out: 59, 53, 19, 98? (a) 59 (b) 53 (c) 19 (d) 98
  18. 18.Which number is the odd one out: 50, 48, 85, 75? (a) 50 (b) 48 (c) 85 (d) 75
  19. 19.Which number is the odd one out: 51, 53, 83, 3? (a) 51 (b) 53 (c) 83 (d) 3
  20. 20.Which number is the odd one out: 42, 71, 61, 17? (a) 42 (b) 71 (c) 61 (d) 17
  21. 21.Which number is the odd one out: 96, 8, 94, 24? (a) 96 (b) 8 (c) 94 (d) 24
  22. 22.Which number is the odd one out: 57, 96, 95, 85? (a) 57 (b) 96 (c) 95 (d) 85
  23. 23.Which number is the odd one out: 64, 16, 26, 88? (a) 64 (b) 16 (c) 26 (d) 88
  24. 24.Which number is the odd one out: 71, 6, 17, 69? (a) 71 (b) 6 (c) 17 (d) 69
  25. 25.Which number is the odd one out: 4, 59, 23, 79? (a) 4 (b) 59 (c) 23 (d) 79
  26. 26.Which number is the odd one out: 17, 61, 95, 53? (a) 17 (b) 61 (c) 95 (d) 53
  27. 27.Which number is the odd one out: 17, 31, 36, 13? (a) 17 (b) 31 (c) 36 (d) 13
  28. 28.Which number is the odd one out: 46, 23, 31, 43? (a) 46 (b) 23 (c) 31 (d) 43
  29. 29.Which number is the odd one out: 2, 31, 17, 18? (a) 2 (b) 31 (c) 17 (d) 18
  30. 30.Which number is the odd one out: 5, 52, 85, 43? (a) 5 (b) 52 (c) 85 (d) 43
  31. 31.Which number is the odd one out: 54, 3, 18, 78? (a) 54 (b) 3 (c) 18 (d) 78
  32. 32.Which number is the odd one out: 16, 44, 25, 88? (a) 16 (b) 44 (c) 25 (d) 88
  33. 33.Which number is the odd one out: 45, 59, 67, 13? (a) 45 (b) 59 (c) 67 (d) 13
  34. 34.Which number is the odd one out: 23, 65, 55, 2? (a) 23 (b) 65 (c) 55 (d) 2
  35. 35.Which number is the odd one out: 23, 68, 83, 59? (a) 23 (b) 68 (c) 83 (d) 59
  36. 36.Which number is the odd one out: 53, 47, 91, 23? (a) 53 (b) 47 (c) 91 (d) 23
  37. 37.Which number is the odd one out: 56, 17, 47, 89? (a) 56 (b) 17 (c) 47 (d) 89
  38. 38.Which number is the odd one out: 78, 98, 42, 14? (a) 78 (b) 98 (c) 42 (d) 14
  39. 39.Which number is the odd one out: 68, 40, 88, 25? (a) 68 (b) 40 (c) 88 (d) 25
  40. 40.Which number is the odd one out: 7, 91, 17, 54? (a) 7 (b) 91 (c) 17 (d) 54

Answer key

  1. 75
  2. 60
  3. 66
  4. 85
  5. 4
  6. 76
  7. 22
  8. 48
  9. 80
  10. 16
  11. 85
  12. 5
  13. 86
  14. 14
  15. 75
  16. 82
  17. 98
  18. 48
  19. 51
  20. 42
  21. 94
  22. 96
  23. 26
  24. 6
  25. 4
  26. 95
  27. 36
  28. 46
  29. 18
  30. 52
  31. 3
  32. 25
  33. 45
  34. 2
  35. 68
  36. 91
  37. 56
  38. 78
  39. 25
  40. 54

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