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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 554 · 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: 71, 8, 37, 97? (a) 71 (b) 8 (c) 37 (d) 97
  2. 2.Which number is the odd one out: 48, 59, 73, 97? (a) 48 (b) 59 (c) 73 (d) 97
  3. 3.Which number is the odd one out: 29, 73, 61, 66? (a) 29 (b) 73 (c) 61 (d) 66
  4. 4.Which number is the odd one out: 81, 25, 75, 85? (a) 81 (b) 25 (c) 75 (d) 85
  5. 5.Which number is the odd one out: 42, 28, 84, 71? (a) 42 (b) 28 (c) 84 (d) 71
  6. 6.Which number is the odd one out: 66, 24, 50, 96? (a) 66 (b) 24 (c) 50 (d) 96
  7. 7.Which number is the odd one out: 97, 83, 15, 89? (a) 97 (b) 83 (c) 15 (d) 89
  8. 8.Which number is the odd one out: 92, 79, 19, 61? (a) 92 (b) 79 (c) 19 (d) 61
  9. 9.Which number is the odd one out: 61, 28, 71, 89? (a) 61 (b) 28 (c) 71 (d) 89
  10. 10.Which number is the odd one out: 41, 42, 37, 97? (a) 41 (b) 42 (c) 37 (d) 97
  11. 11.Which number is the odd one out: 37, 41, 90, 59? (a) 37 (b) 41 (c) 90 (d) 59
  12. 12.Which number is the odd one out: 38, 94, 67, 58? (a) 38 (b) 94 (c) 67 (d) 58
  13. 13.Which number is the odd one out: 63, 18, 21, 93? (a) 63 (b) 18 (c) 21 (d) 93
  14. 14.Which number is the odd one out: 37, 64, 79, 89? (a) 37 (b) 64 (c) 79 (d) 89
  15. 15.Which number is the odd one out: 43, 18, 72, 96? (a) 43 (b) 18 (c) 72 (d) 96
  16. 16.Which number is the odd one out: 89, 29, 37, 90? (a) 89 (b) 29 (c) 37 (d) 90
  17. 17.Which number is the odd one out: 59, 61, 65, 47? (a) 59 (b) 61 (c) 65 (d) 47
  18. 18.Which number is the odd one out: 71, 31, 67, 28? (a) 71 (b) 31 (c) 67 (d) 28
  19. 19.Which number is the odd one out: 67, 2, 37, 46? (a) 67 (b) 2 (c) 37 (d) 46
  20. 20.Which number is the odd one out: 40, 89, 37, 71? (a) 40 (b) 89 (c) 37 (d) 71
  21. 21.Which number is the odd one out: 83, 59, 17, 16? (a) 83 (b) 59 (c) 17 (d) 16
  22. 22.Which number is the odd one out: 58, 29, 13, 11? (a) 58 (b) 29 (c) 13 (d) 11
  23. 23.Which number is the odd one out: 94, 9, 81, 99? (a) 94 (b) 9 (c) 81 (d) 99
  24. 24.Which number is the odd one out: 48, 67, 17, 19? (a) 48 (b) 67 (c) 17 (d) 19
  25. 25.Which number is the odd one out: 13, 10, 5, 97? (a) 13 (b) 10 (c) 5 (d) 97
  26. 26.Which number is the odd one out: 47, 54, 61, 71? (a) 47 (b) 54 (c) 61 (d) 71
  27. 27.Which number is the odd one out: 82, 19, 59, 43? (a) 82 (b) 19 (c) 59 (d) 43
  28. 28.Which number is the odd one out: 96, 65, 18, 72? (a) 96 (b) 65 (c) 18 (d) 72
  29. 29.Which number is the odd one out: 47, 7, 41, 42? (a) 47 (b) 7 (c) 41 (d) 42
  30. 30.Which number is the odd one out: 83, 59, 10, 73? (a) 83 (b) 59 (c) 10 (d) 73
  31. 31.Which number is the odd one out: 89, 12, 73, 3? (a) 89 (b) 12 (c) 73 (d) 3
  32. 32.Which number is the odd one out: 89, 41, 60, 37? (a) 89 (b) 41 (c) 60 (d) 37
  33. 33.Which number is the odd one out: 3, 17, 23, 54? (a) 3 (b) 17 (c) 23 (d) 54
  34. 34.Which number is the odd one out: 73, 92, 11, 17? (a) 73 (b) 92 (c) 11 (d) 17
  35. 35.Which number is the odd one out: 83, 19, 2, 20? (a) 83 (b) 19 (c) 2 (d) 20
  36. 36.Which number is the odd one out: 87, 37, 29, 31? (a) 87 (b) 37 (c) 29 (d) 31
  37. 37.Which number is the odd one out: 89, 5, 54, 65? (a) 89 (b) 5 (c) 54 (d) 65
  38. 38.Which number is the odd one out: 92, 24, 96, 97? (a) 92 (b) 24 (c) 96 (d) 97
  39. 39.Which number is the odd one out: 72, 50, 90, 24? (a) 72 (b) 50 (c) 90 (d) 24
  40. 40.Which number is the odd one out: 75, 71, 59, 17? (a) 75 (b) 71 (c) 59 (d) 17

Answer key

  1. 8
  2. 48
  3. 66
  4. 81
  5. 71
  6. 50
  7. 15
  8. 92
  9. 28
  10. 42
  11. 90
  12. 67
  13. 18
  14. 64
  15. 43
  16. 90
  17. 65
  18. 28
  19. 46
  20. 40
  21. 16
  22. 58
  23. 94
  24. 48
  25. 10
  26. 54
  27. 82
  28. 65
  29. 42
  30. 10
  31. 12
  32. 60
  33. 54
  34. 92
  35. 20
  36. 87
  37. 54
  38. 97
  39. 50
  40. 75

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