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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 268 · 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: 41, 71, 83, 76? (a) 41 (b) 71 (c) 83 (d) 76
  2. 2.Which number is the odd one out: 39, 48, 99, 27? (a) 39 (b) 48 (c) 99 (d) 27
  3. 3.Which number is the odd one out: 98, 94, 91, 77? (a) 98 (b) 94 (c) 91 (d) 77
  4. 4.Which number is the odd one out: 17, 11, 38, 47? (a) 17 (b) 11 (c) 38 (d) 47
  5. 5.Which number is the odd one out: 65, 55, 3, 85? (a) 65 (b) 55 (c) 3 (d) 85
  6. 6.Which number is the odd one out: 22, 39, 82, 86? (a) 22 (b) 39 (c) 82 (d) 86
  7. 7.Which number is the odd one out: 9, 41, 36, 59? (a) 9 (b) 41 (c) 36 (d) 59
  8. 8.Which number is the odd one out: 79, 81, 41, 11? (a) 79 (b) 81 (c) 41 (d) 11
  9. 9.Which number is the odd one out: 49, 96, 16, 24? (a) 49 (b) 96 (c) 16 (d) 24
  10. 10.Which number is the odd one out: 28, 17, 73, 79? (a) 28 (b) 17 (c) 73 (d) 79
  11. 11.Which number is the odd one out: 72, 43, 99, 23? (a) 72 (b) 43 (c) 99 (d) 23
  12. 12.Which number is the odd one out: 41, 47, 89, 82? (a) 41 (b) 47 (c) 89 (d) 82
  13. 13.Which number is the odd one out: 17, 23, 60, 59? (a) 17 (b) 23 (c) 60 (d) 59
  14. 14.Which number is the odd one out: 79, 13, 61, 15? (a) 79 (b) 13 (c) 61 (d) 15
  15. 15.Which number is the odd one out: 20, 2, 29, 19? (a) 20 (b) 2 (c) 29 (d) 19
  16. 16.Which number is the odd one out: 8, 24, 70, 84? (a) 8 (b) 24 (c) 70 (d) 84
  17. 17.Which number is the odd one out: 83, 47, 67, 24? (a) 83 (b) 47 (c) 67 (d) 24
  18. 18.Which number is the odd one out: 71, 11, 41, 10? (a) 71 (b) 11 (c) 41 (d) 10
  19. 19.Which number is the odd one out: 58, 11, 43, 61? (a) 58 (b) 11 (c) 43 (d) 61
  20. 20.Which number is the odd one out: 52, 76, 38, 44? (a) 52 (b) 76 (c) 38 (d) 44
  21. 21.Which number is the odd one out: 26, 71, 73, 19? (a) 26 (b) 71 (c) 73 (d) 19
  22. 22.Which number is the odd one out: 39, 37, 19, 71? (a) 39 (b) 37 (c) 19 (d) 71
  23. 23.Which number is the odd one out: 59, 88, 40, 80? (a) 59 (b) 88 (c) 40 (d) 80
  24. 24.Which number is the odd one out: 42, 73, 3, 59? (a) 42 (b) 73 (c) 3 (d) 59
  25. 25.Which number is the odd one out: 18, 59, 11, 67? (a) 18 (b) 59 (c) 11 (d) 67
  26. 26.Which number is the odd one out: 59, 73, 87, 37? (a) 59 (b) 73 (c) 87 (d) 37
  27. 27.Which number is the odd one out: 47, 41, 35, 7? (a) 47 (b) 41 (c) 35 (d) 7
  28. 28.Which number is the odd one out: 73, 5, 78, 15? (a) 73 (b) 5 (c) 78 (d) 15
  29. 29.Which number is the odd one out: 79, 18, 11, 59? (a) 79 (b) 18 (c) 11 (d) 59
  30. 30.Which number is the odd one out: 80, 49, 65, 40? (a) 80 (b) 49 (c) 65 (d) 40
  31. 31.Which number is the odd one out: 43, 88, 96, 24? (a) 43 (b) 88 (c) 96 (d) 24
  32. 32.Which number is the odd one out: 3, 42, 7, 41? (a) 3 (b) 42 (c) 7 (d) 41
  33. 33.Which number is the odd one out: 83, 74, 29, 47? (a) 83 (b) 74 (c) 29 (d) 47
  34. 34.Which number is the odd one out: 54, 78, 6, 99? (a) 54 (b) 78 (c) 6 (d) 99
  35. 35.Which number is the odd one out: 19, 44, 29, 97? (a) 19 (b) 44 (c) 29 (d) 97
  36. 36.Which number is the odd one out: 23, 19, 47, 18? (a) 23 (b) 19 (c) 47 (d) 18
  37. 37.Which number is the odd one out: 73, 71, 37, 25? (a) 73 (b) 71 (c) 37 (d) 25
  38. 38.Which number is the odd one out: 55, 11, 30, 29? (a) 55 (b) 11 (c) 30 (d) 29
  39. 39.Which number is the odd one out: 5, 95, 97, 85? (a) 5 (b) 95 (c) 97 (d) 85
  40. 40.Which number is the odd one out: 72, 69, 23, 17? (a) 72 (b) 69 (c) 23 (d) 17

Answer key

  1. 76
  2. 48
  3. 94
  4. 38
  5. 3
  6. 39
  7. 36
  8. 81
  9. 49
  10. 28
  11. 72
  12. 82
  13. 60
  14. 15
  15. 20
  16. 70
  17. 24
  18. 10
  19. 58
  20. 38
  21. 26
  22. 39
  23. 59
  24. 42
  25. 18
  26. 87
  27. 35
  28. 78
  29. 18
  30. 49
  31. 43
  32. 42
  33. 74
  34. 99
  35. 44
  36. 18
  37. 25
  38. 30
  39. 97
  40. 72

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