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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 61 · 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: 70, 96, 48, 8? (a) 70 (b) 96 (c) 48 (d) 8
  2. 2.Which number is the odd one out: 40, 13, 19, 23? (a) 40 (b) 13 (c) 19 (d) 23
  3. 3.Which number is the odd one out: 97, 19, 57, 71? (a) 97 (b) 19 (c) 57 (d) 71
  4. 4.Which number is the odd one out: 9, 43, 3, 13? (a) 9 (b) 43 (c) 3 (d) 13
  5. 5.Which number is the odd one out: 13, 29, 79, 87? (a) 13 (b) 29 (c) 79 (d) 87
  6. 6.Which number is the odd one out: 96, 31, 17, 71? (a) 96 (b) 31 (c) 17 (d) 71
  7. 7.Which number is the odd one out: 29, 98, 7, 19? (a) 29 (b) 98 (c) 7 (d) 19
  8. 8.Which number is the odd one out: 83, 41, 27, 19? (a) 83 (b) 41 (c) 27 (d) 19
  9. 9.Which number is the odd one out: 94, 83, 67, 79? (a) 94 (b) 83 (c) 67 (d) 79
  10. 10.Which number is the odd one out: 29, 25, 67, 83? (a) 29 (b) 25 (c) 67 (d) 83
  11. 11.Which number is the odd one out: 73, 90, 93, 89? (a) 73 (b) 90 (c) 93 (d) 89
  12. 12.Which number is the odd one out: 64, 12, 16, 32? (a) 64 (b) 12 (c) 16 (d) 32
  13. 13.Which number is the odd one out: 32, 97, 13, 43? (a) 32 (b) 97 (c) 13 (d) 43
  14. 14.Which number is the odd one out: 17, 15, 37, 31? (a) 17 (b) 15 (c) 37 (d) 31
  15. 15.Which number is the odd one out: 57, 73, 59, 43? (a) 57 (b) 73 (c) 59 (d) 43
  16. 16.Which number is the odd one out: 11, 13, 46, 31? (a) 11 (b) 13 (c) 46 (d) 31
  17. 17.Which number is the odd one out: 73, 83, 61, 96? (a) 73 (b) 83 (c) 61 (d) 96
  18. 18.Which number is the odd one out: 28, 9, 4, 81? (a) 28 (b) 9 (c) 4 (d) 81
  19. 19.Which number is the odd one out: 17, 36, 31, 41? (a) 17 (b) 36 (c) 31 (d) 41
  20. 20.Which number is the odd one out: 64, 52, 16, 75? (a) 64 (b) 52 (c) 16 (d) 75
  21. 21.Which number is the odd one out: 57, 97, 31, 17? (a) 57 (b) 97 (c) 31 (d) 17
  22. 22.Which number is the odd one out: 15, 32, 20, 88? (a) 15 (b) 32 (c) 20 (d) 88
  23. 23.Which number is the odd one out: 71, 31, 61, 36? (a) 71 (b) 31 (c) 61 (d) 36
  24. 24.Which number is the odd one out: 96, 12, 72, 27? (a) 96 (b) 12 (c) 72 (d) 27
  25. 25.Which number is the odd one out: 16, 24, 64, 18? (a) 16 (b) 24 (c) 64 (d) 18
  26. 26.Which number is the odd one out: 21, 61, 19, 43? (a) 21 (b) 61 (c) 19 (d) 43
  27. 27.Which number is the odd one out: 3, 79, 47, 54? (a) 3 (b) 79 (c) 47 (d) 54
  28. 28.Which number is the odd one out: 83, 67, 51, 59? (a) 83 (b) 67 (c) 51 (d) 59
  29. 29.Which number is the odd one out: 83, 4, 43, 61? (a) 83 (b) 4 (c) 43 (d) 61
  30. 30.Which number is the odd one out: 23, 28, 7, 43? (a) 23 (b) 28 (c) 7 (d) 43
  31. 31.Which number is the odd one out: 24, 48, 6, 83? (a) 24 (b) 48 (c) 6 (d) 83
  32. 32.Which number is the odd one out: 24, 47, 71, 19? (a) 24 (b) 47 (c) 71 (d) 19
  33. 33.Which number is the odd one out: 41, 71, 53, 60? (a) 41 (b) 71 (c) 53 (d) 60
  34. 34.Which number is the odd one out: 72, 53, 73, 37? (a) 72 (b) 53 (c) 73 (d) 37
  35. 35.Which number is the odd one out: 96, 2, 11, 41? (a) 96 (b) 2 (c) 11 (d) 41
  36. 36.Which number is the odd one out: 89, 93, 11, 73? (a) 89 (b) 93 (c) 11 (d) 73
  37. 37.Which number is the odd one out: 47, 97, 30, 61? (a) 47 (b) 97 (c) 30 (d) 61
  38. 38.Which number is the odd one out: 27, 24, 81, 9? (a) 27 (b) 24 (c) 81 (d) 9
  39. 39.Which number is the odd one out: 55, 95, 85, 37? (a) 55 (b) 95 (c) 85 (d) 37
  40. 40.Which number is the odd one out: 9, 81, 58, 51? (a) 9 (b) 81 (c) 58 (d) 51

Answer key

  1. 70
  2. 40
  3. 57
  4. 9
  5. 87
  6. 96
  7. 98
  8. 27
  9. 94
  10. 25
  11. 90
  12. 12
  13. 32
  14. 15
  15. 57
  16. 46
  17. 96
  18. 28
  19. 36
  20. 75
  21. 57
  22. 15
  23. 36
  24. 27
  25. 18
  26. 21
  27. 54
  28. 51
  29. 4
  30. 28
  31. 83
  32. 24
  33. 60
  34. 72
  35. 96
  36. 93
  37. 30
  38. 24
  39. 37
  40. 58

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