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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 853 · 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, 4, 83, 43? (a) 2 (b) 4 (c) 83 (d) 43
  2. 2.Which number is the odd one out: 76, 68, 98, 28? (a) 76 (b) 68 (c) 98 (d) 28
  3. 3.Which number is the odd one out: 74, 83, 13, 31? (a) 74 (b) 83 (c) 13 (d) 31
  4. 4.Which number is the odd one out: 37, 31, 53, 21? (a) 37 (b) 31 (c) 53 (d) 21
  5. 5.Which number is the odd one out: 71, 79, 33, 3? (a) 71 (b) 79 (c) 33 (d) 3
  6. 6.Which number is the odd one out: 82, 65, 85, 55? (a) 82 (b) 65 (c) 85 (d) 55
  7. 7.Which number is the odd one out: 2, 4, 53, 61? (a) 2 (b) 4 (c) 53 (d) 61
  8. 8.Which number is the odd one out: 93, 75, 94, 15? (a) 93 (b) 75 (c) 94 (d) 15
  9. 9.Which number is the odd one out: 10, 20, 4, 9? (a) 10 (b) 20 (c) 4 (d) 9
  10. 10.Which number is the odd one out: 70, 61, 19, 7? (a) 70 (b) 61 (c) 19 (d) 7
  11. 11.Which number is the odd one out: 99, 78, 54, 6? (a) 99 (b) 78 (c) 54 (d) 6
  12. 12.Which number is the odd one out: 2, 13, 90, 97? (a) 2 (b) 13 (c) 90 (d) 97
  13. 13.Which number is the odd one out: 89, 11, 43, 34? (a) 89 (b) 11 (c) 43 (d) 34
  14. 14.Which number is the odd one out: 15, 52, 87, 75? (a) 15 (b) 52 (c) 87 (d) 75
  15. 15.Which number is the odd one out: 87, 47, 37, 19? (a) 87 (b) 47 (c) 37 (d) 19
  16. 16.Which number is the odd one out: 88, 24, 48, 79? (a) 88 (b) 24 (c) 48 (d) 79
  17. 17.Which number is the odd one out: 14, 99, 81, 9? (a) 14 (b) 99 (c) 81 (d) 9
  18. 18.Which number is the odd one out: 74, 19, 2, 41? (a) 74 (b) 19 (c) 2 (d) 41
  19. 19.Which number is the odd one out: 37, 76, 71, 47? (a) 37 (b) 76 (c) 71 (d) 47
  20. 20.Which number is the odd one out: 58, 38, 77, 34? (a) 58 (b) 38 (c) 77 (d) 34
  21. 21.Which number is the odd one out: 89, 35, 53, 73? (a) 89 (b) 35 (c) 53 (d) 73
  22. 22.Which number is the odd one out: 6, 76, 91, 84? (a) 6 (b) 76 (c) 91 (d) 84
  23. 23.Which number is the odd one out: 19, 11, 53, 33? (a) 19 (b) 11 (c) 53 (d) 33
  24. 24.Which number is the odd one out: 9, 47, 3, 79? (a) 9 (b) 47 (c) 3 (d) 79
  25. 25.Which number is the odd one out: 2, 82, 53, 83? (a) 2 (b) 82 (c) 53 (d) 83
  26. 26.Which number is the odd one out: 18, 79, 71, 73? (a) 18 (b) 79 (c) 71 (d) 73
  27. 27.Which number is the odd one out: 69, 72, 31, 73? (a) 69 (b) 72 (c) 31 (d) 73
  28. 28.Which number is the odd one out: 43, 13, 33, 37? (a) 43 (b) 13 (c) 33 (d) 37
  29. 29.Which number is the odd one out: 85, 60, 59, 61? (a) 85 (b) 60 (c) 59 (d) 61
  30. 30.Which number is the odd one out: 16, 18, 54, 6? (a) 16 (b) 18 (c) 54 (d) 6
  31. 31.Which number is the odd one out: 61, 20, 59, 89? (a) 61 (b) 20 (c) 59 (d) 89
  32. 32.Which number is the odd one out: 37, 29, 87, 42? (a) 37 (b) 29 (c) 87 (d) 42
  33. 33.Which number is the odd one out: 67, 2, 38, 13? (a) 67 (b) 2 (c) 38 (d) 13
  34. 34.Which number is the odd one out: 50, 55, 51, 10? (a) 50 (b) 55 (c) 51 (d) 10
  35. 35.Which number is the odd one out: 61, 62, 97, 37? (a) 61 (b) 62 (c) 97 (d) 37
  36. 36.Which number is the odd one out: 96, 88, 32, 84? (a) 96 (b) 88 (c) 32 (d) 84
  37. 37.Which number is the odd one out: 80, 47, 53, 83? (a) 80 (b) 47 (c) 53 (d) 83
  38. 38.Which number is the odd one out: 66, 15, 71, 30? (a) 66 (b) 15 (c) 71 (d) 30
  39. 39.Which number is the odd one out: 8, 31, 71, 83? (a) 8 (b) 31 (c) 71 (d) 83
  40. 40.Which number is the odd one out: 85, 43, 79, 17? (a) 85 (b) 43 (c) 79 (d) 17

Answer key

  1. 4
  2. 98
  3. 74
  4. 21
  5. 33
  6. 82
  7. 4
  8. 94
  9. 9
  10. 70
  11. 99
  12. 90
  13. 34
  14. 52
  15. 87
  16. 79
  17. 14
  18. 74
  19. 76
  20. 77
  21. 35
  22. 91
  23. 33
  24. 9
  25. 82
  26. 18
  27. 72
  28. 33
  29. 60
  30. 16
  31. 20
  32. 42
  33. 38
  34. 51
  35. 62
  36. 84
  37. 80
  38. 71
  39. 8
  40. 85

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