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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 752 · 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: 77, 28, 21, 36? (a) 77 (b) 28 (c) 21 (d) 36
  2. 2.Which number is the odd one out: 60, 32, 40, 96? (a) 60 (b) 32 (c) 40 (d) 96
  3. 3.Which number is the odd one out: 6, 79, 67, 37? (a) 6 (b) 79 (c) 67 (d) 37
  4. 4.Which number is the odd one out: 47, 41, 11, 57? (a) 47 (b) 41 (c) 11 (d) 57
  5. 5.Which number is the odd one out: 71, 15, 17, 47? (a) 71 (b) 15 (c) 17 (d) 47
  6. 6.Which number is the odd one out: 28, 66, 6, 42? (a) 28 (b) 66 (c) 6 (d) 42
  7. 7.Which number is the odd one out: 66, 67, 71, 41? (a) 66 (b) 67 (c) 71 (d) 41
  8. 8.Which number is the odd one out: 52, 90, 20, 92? (a) 52 (b) 90 (c) 20 (d) 92
  9. 9.Which number is the odd one out: 17, 59, 7, 35? (a) 17 (b) 59 (c) 7 (d) 35
  10. 10.Which number is the odd one out: 45, 40, 27, 99? (a) 45 (b) 40 (c) 27 (d) 99
  11. 11.Which number is the odd one out: 92, 44, 68, 61? (a) 92 (b) 44 (c) 68 (d) 61
  12. 12.Which number is the odd one out: 89, 61, 90, 17? (a) 89 (b) 61 (c) 90 (d) 17
  13. 13.Which number is the odd one out: 21, 79, 41, 13? (a) 21 (b) 79 (c) 41 (d) 13
  14. 14.Which number is the odd one out: 4, 16, 80, 5? (a) 4 (b) 16 (c) 80 (d) 5
  15. 15.Which number is the odd one out: 36, 88, 32, 24? (a) 36 (b) 88 (c) 32 (d) 24
  16. 16.Which number is the odd one out: 3, 31, 67, 9? (a) 3 (b) 31 (c) 67 (d) 9
  17. 17.Which number is the odd one out: 72, 11, 59, 53? (a) 72 (b) 11 (c) 59 (d) 53
  18. 18.Which number is the odd one out: 37, 35, 89, 13? (a) 37 (b) 35 (c) 89 (d) 13
  19. 19.Which number is the odd one out: 71, 18, 2, 59? (a) 71 (b) 18 (c) 2 (d) 59
  20. 20.Which number is the odd one out: 29, 59, 11, 72? (a) 29 (b) 59 (c) 11 (d) 72
  21. 21.Which number is the odd one out: 97, 89, 17, 82? (a) 97 (b) 89 (c) 17 (d) 82
  22. 22.Which number is the odd one out: 6, 40, 66, 78? (a) 6 (b) 40 (c) 66 (d) 78
  23. 23.Which number is the odd one out: 13, 43, 6, 23? (a) 13 (b) 43 (c) 6 (d) 23
  24. 24.Which number is the odd one out: 53, 83, 89, 75? (a) 53 (b) 83 (c) 89 (d) 75
  25. 25.Which number is the odd one out: 5, 59, 7, 70? (a) 5 (b) 59 (c) 7 (d) 70
  26. 26.Which number is the odd one out: 26, 67, 38, 62? (a) 26 (b) 67 (c) 38 (d) 62
  27. 27.Which number is the odd one out: 71, 23, 16, 61? (a) 71 (b) 23 (c) 16 (d) 61
  28. 28.Which number is the odd one out: 67, 2, 70, 97? (a) 67 (b) 2 (c) 70 (d) 97
  29. 29.Which number is the odd one out: 40, 97, 80, 44? (a) 40 (b) 97 (c) 80 (d) 44
  30. 30.Which number is the odd one out: 8, 24, 12, 11? (a) 8 (b) 24 (c) 12 (d) 11
  31. 31.Which number is the odd one out: 11, 13, 61, 49? (a) 11 (b) 13 (c) 61 (d) 49
  32. 32.Which number is the odd one out: 13, 71, 28, 7? (a) 13 (b) 71 (c) 28 (d) 7
  33. 33.Which number is the odd one out: 17, 88, 41, 11? (a) 17 (b) 88 (c) 41 (d) 11
  34. 34.Which number is the odd one out: 7, 56, 83, 31? (a) 7 (b) 56 (c) 83 (d) 31
  35. 35.Which number is the odd one out: 12, 29, 88, 96? (a) 12 (b) 29 (c) 88 (d) 96
  36. 36.Which number is the odd one out: 71, 17, 39, 41? (a) 71 (b) 17 (c) 39 (d) 41
  37. 37.Which number is the odd one out: 29, 68, 2, 37? (a) 29 (b) 68 (c) 2 (d) 37
  38. 38.Which number is the odd one out: 79, 51, 89, 66? (a) 79 (b) 51 (c) 89 (d) 66
  39. 39.Which number is the odd one out: 92, 64, 4, 16? (a) 92 (b) 64 (c) 4 (d) 16
  40. 40.Which number is the odd one out: 31, 73, 65, 10? (a) 31 (b) 73 (c) 65 (d) 10

Answer key

  1. 36
  2. 60
  3. 6
  4. 57
  5. 15
  6. 28
  7. 66
  8. 90
  9. 35
  10. 40
  11. 61
  12. 90
  13. 21
  14. 5
  15. 36
  16. 9
  17. 72
  18. 35
  19. 18
  20. 72
  21. 82
  22. 40
  23. 6
  24. 75
  25. 70
  26. 67
  27. 16
  28. 70
  29. 97
  30. 11
  31. 49
  32. 28
  33. 88
  34. 56
  35. 29
  36. 39
  37. 68
  38. 66
  39. 92
  40. 10

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