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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 801 · 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: 61, 73, 50, 41? (a) 61 (b) 73 (c) 50 (d) 41
  2. 2.Which number is the odd one out: 88, 2, 11, 71? (a) 88 (b) 2 (c) 11 (d) 71
  3. 3.Which number is the odd one out: 37, 89, 4, 17? (a) 37 (b) 89 (c) 4 (d) 17
  4. 4.Which number is the odd one out: 65, 31, 83, 59? (a) 65 (b) 31 (c) 83 (d) 59
  5. 5.Which number is the odd one out: 75, 97, 31, 17? (a) 75 (b) 97 (c) 31 (d) 17
  6. 6.Which number is the odd one out: 47, 13, 6, 41? (a) 47 (b) 13 (c) 6 (d) 41
  7. 7.Which number is the odd one out: 40, 53, 65, 73? (a) 40 (b) 53 (c) 65 (d) 73
  8. 8.Which number is the odd one out: 13, 2, 53, 66? (a) 13 (b) 2 (c) 53 (d) 66
  9. 9.Which number is the odd one out: 64, 26, 4, 16? (a) 64 (b) 26 (c) 4 (d) 16
  10. 10.Which number is the odd one out: 26, 89, 73, 2? (a) 26 (b) 89 (c) 73 (d) 2
  11. 11.Which number is the odd one out: 83, 71, 27, 17? (a) 83 (b) 71 (c) 27 (d) 17
  12. 12.Which number is the odd one out: 71, 69, 11, 17? (a) 71 (b) 69 (c) 11 (d) 17
  13. 13.Which number is the odd one out: 64, 16, 88, 43? (a) 64 (b) 16 (c) 88 (d) 43
  14. 14.Which number is the odd one out: 17, 91, 97, 11? (a) 17 (b) 91 (c) 97 (d) 11
  15. 15.Which number is the odd one out: 31, 96, 18, 72? (a) 31 (b) 96 (c) 18 (d) 72
  16. 16.Which number is the odd one out: 59, 57, 47, 13? (a) 59 (b) 57 (c) 47 (d) 13
  17. 17.Which number is the odd one out: 35, 56, 24, 48? (a) 35 (b) 56 (c) 24 (d) 48
  18. 18.Which number is the odd one out: 12, 48, 24, 39? (a) 12 (b) 48 (c) 24 (d) 39
  19. 19.Which number is the odd one out: 99, 19, 23, 89? (a) 99 (b) 19 (c) 23 (d) 89
  20. 20.Which number is the odd one out: 15, 23, 29, 31? (a) 15 (b) 23 (c) 29 (d) 31
  21. 21.Which number is the odd one out: 81, 6, 9, 18? (a) 81 (b) 6 (c) 9 (d) 18
  22. 22.Which number is the odd one out: 38, 42, 91, 6? (a) 38 (b) 42 (c) 91 (d) 6
  23. 23.Which number is the odd one out: 25, 71, 5, 67? (a) 25 (b) 71 (c) 5 (d) 67
  24. 24.Which number is the odd one out: 19, 56, 83, 37? (a) 19 (b) 56 (c) 83 (d) 37
  25. 25.Which number is the odd one out: 17, 11, 97, 78? (a) 17 (b) 11 (c) 97 (d) 78
  26. 26.Which number is the odd one out: 11, 21, 3, 29? (a) 11 (b) 21 (c) 3 (d) 29
  27. 27.Which number is the odd one out: 41, 47, 13, 65? (a) 41 (b) 47 (c) 13 (d) 65
  28. 28.Which number is the odd one out: 2, 89, 31, 30? (a) 2 (b) 89 (c) 31 (d) 30
  29. 29.Which number is the odd one out: 11, 55, 80, 29? (a) 11 (b) 55 (c) 80 (d) 29
  30. 30.Which number is the odd one out: 23, 79, 85, 37? (a) 23 (b) 79 (c) 85 (d) 37
  31. 31.Which number is the odd one out: 19, 83, 72, 59? (a) 19 (b) 83 (c) 72 (d) 59
  32. 32.Which number is the odd one out: 96, 24, 54, 72? (a) 96 (b) 24 (c) 54 (d) 72
  33. 33.Which number is the odd one out: 65, 79, 59, 31? (a) 65 (b) 79 (c) 59 (d) 31
  34. 34.Which number is the odd one out: 83, 11, 60, 37? (a) 83 (b) 11 (c) 60 (d) 37
  35. 35.Which number is the odd one out: 41, 96, 97, 37? (a) 41 (b) 96 (c) 97 (d) 37
  36. 36.Which number is the odd one out: 52, 44, 76, 27? (a) 52 (b) 44 (c) 76 (d) 27
  37. 37.Which number is the odd one out: 71, 59, 53, 28? (a) 71 (b) 59 (c) 53 (d) 28
  38. 38.Which number is the odd one out: 96, 65, 48, 32? (a) 96 (b) 65 (c) 48 (d) 32
  39. 39.Which number is the odd one out: 47, 12, 24, 32? (a) 47 (b) 12 (c) 24 (d) 32
  40. 40.Which number is the odd one out: 83, 63, 73, 11? (a) 83 (b) 63 (c) 73 (d) 11

Answer key

  1. 50
  2. 88
  3. 4
  4. 65
  5. 75
  6. 6
  7. 40
  8. 66
  9. 26
  10. 26
  11. 27
  12. 69
  13. 43
  14. 91
  15. 31
  16. 57
  17. 35
  18. 39
  19. 99
  20. 15
  21. 6
  22. 91
  23. 25
  24. 56
  25. 78
  26. 21
  27. 65
  28. 30
  29. 80
  30. 85
  31. 72
  32. 54
  33. 65
  34. 60
  35. 96
  36. 27
  37. 28
  38. 65
  39. 47
  40. 63

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