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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 834 · 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: 6, 29, 42, 98? (a) 6 (b) 29 (c) 42 (d) 98
  2. 2.Which number is the odd one out: 44, 43, 17, 41? (a) 44 (b) 43 (c) 17 (d) 41
  3. 3.Which number is the odd one out: 43, 13, 75, 83? (a) 43 (b) 13 (c) 75 (d) 83
  4. 4.Which number is the odd one out: 73, 5, 85, 6? (a) 73 (b) 5 (c) 85 (d) 6
  5. 5.Which number is the odd one out: 67, 11, 37, 14? (a) 67 (b) 11 (c) 37 (d) 14
  6. 6.Which number is the odd one out: 53, 8, 29, 31? (a) 53 (b) 8 (c) 29 (d) 31
  7. 7.Which number is the odd one out: 36, 8, 64, 72? (a) 36 (b) 8 (c) 64 (d) 72
  8. 8.Which number is the odd one out: 59, 61, 27, 53? (a) 59 (b) 61 (c) 27 (d) 53
  9. 9.Which number is the odd one out: 48, 7, 78, 96? (a) 48 (b) 7 (c) 78 (d) 96
  10. 10.Which number is the odd one out: 74, 13, 37, 19? (a) 74 (b) 13 (c) 37 (d) 19
  11. 11.Which number is the odd one out: 3, 89, 41, 84? (a) 3 (b) 89 (c) 41 (d) 84
  12. 12.Which number is the odd one out: 75, 64, 32, 16? (a) 75 (b) 64 (c) 32 (d) 16
  13. 13.Which number is the odd one out: 50, 95, 13, 89? (a) 50 (b) 95 (c) 13 (d) 89
  14. 14.Which number is the odd one out: 44, 89, 2, 29? (a) 44 (b) 89 (c) 2 (d) 29
  15. 15.Which number is the odd one out: 70, 14, 25, 49? (a) 70 (b) 14 (c) 25 (d) 49
  16. 16.Which number is the odd one out: 23, 88, 17, 67? (a) 23 (b) 88 (c) 17 (d) 67
  17. 17.Which number is the odd one out: 98, 29, 17, 71? (a) 98 (b) 29 (c) 17 (d) 71
  18. 18.Which number is the odd one out: 90, 97, 2, 61? (a) 90 (b) 97 (c) 2 (d) 61
  19. 19.Which number is the odd one out: 90, 64, 16, 80? (a) 90 (b) 64 (c) 16 (d) 80
  20. 20.Which number is the odd one out: 33, 29, 31, 73? (a) 33 (b) 29 (c) 31 (d) 73
  21. 21.Which number is the odd one out: 78, 54, 18, 40? (a) 78 (b) 54 (c) 18 (d) 40
  22. 22.Which number is the odd one out: 29, 14, 47, 97? (a) 29 (b) 14 (c) 47 (d) 97
  23. 23.Which number is the odd one out: 17, 23, 65, 13? (a) 17 (b) 23 (c) 65 (d) 13
  24. 24.Which number is the odd one out: 32, 60, 40, 88? (a) 32 (b) 60 (c) 40 (d) 88
  25. 25.Which number is the odd one out: 50, 31, 11, 41? (a) 50 (b) 31 (c) 11 (d) 41
  26. 26.Which number is the odd one out: 10, 95, 85, 66? (a) 10 (b) 95 (c) 85 (d) 66
  27. 27.Which number is the odd one out: 31, 36, 81, 43? (a) 31 (b) 36 (c) 81 (d) 43
  28. 28.Which number is the odd one out: 8, 88, 2, 68? (a) 8 (b) 88 (c) 2 (d) 68
  29. 29.Which number is the odd one out: 90, 40, 24, 54? (a) 90 (b) 40 (c) 24 (d) 54
  30. 30.Which number is the odd one out: 36, 37, 59, 67? (a) 36 (b) 37 (c) 59 (d) 67
  31. 31.Which number is the odd one out: 64, 16, 50, 4? (a) 64 (b) 16 (c) 50 (d) 4
  32. 32.Which number is the odd one out: 13, 41, 83, 57? (a) 13 (b) 41 (c) 83 (d) 57
  33. 33.Which number is the odd one out: 51, 31, 37, 53? (a) 51 (b) 31 (c) 37 (d) 53
  34. 34.Which number is the odd one out: 29, 31, 13, 86? (a) 29 (b) 31 (c) 13 (d) 86
  35. 35.Which number is the odd one out: 67, 41, 79, 82? (a) 67 (b) 41 (c) 79 (d) 82
  36. 36.Which number is the odd one out: 71, 37, 23, 44? (a) 71 (b) 37 (c) 23 (d) 44
  37. 37.Which number is the odd one out: 41, 59, 78, 79? (a) 41 (b) 59 (c) 78 (d) 79
  38. 38.Which number is the odd one out: 56, 49, 64, 32? (a) 56 (b) 49 (c) 64 (d) 32
  39. 39.Which number is the odd one out: 31, 53, 55, 83? (a) 31 (b) 53 (c) 55 (d) 83
  40. 40.Which number is the odd one out: 11, 82, 31, 19? (a) 11 (b) 82 (c) 31 (d) 19

Answer key

  1. 29
  2. 44
  3. 75
  4. 6
  5. 14
  6. 8
  7. 36
  8. 27
  9. 7
  10. 74
  11. 84
  12. 75
  13. 50
  14. 44
  15. 25
  16. 88
  17. 98
  18. 90
  19. 90
  20. 33
  21. 40
  22. 14
  23. 65
  24. 60
  25. 50
  26. 66
  27. 36
  28. 2
  29. 40
  30. 36
  31. 50
  32. 57
  33. 51
  34. 86
  35. 82
  36. 44
  37. 78
  38. 49
  39. 55
  40. 82

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