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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 64 · 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: 83, 43, 27, 41? (a) 83 (b) 43 (c) 27 (d) 41
  2. 2.Which number is the odd one out: 76, 20, 91, 50? (a) 76 (b) 20 (c) 91 (d) 50
  3. 3.Which number is the odd one out: 37, 93, 11, 23? (a) 37 (b) 93 (c) 11 (d) 23
  4. 4.Which number is the odd one out: 85, 55, 40, 32? (a) 85 (b) 55 (c) 40 (d) 32
  5. 5.Which number is the odd one out: 75, 11, 61, 73? (a) 75 (b) 11 (c) 61 (d) 73
  6. 6.Which number is the odd one out: 3, 42, 47, 37? (a) 3 (b) 42 (c) 47 (d) 37
  7. 7.Which number is the odd one out: 61, 53, 29, 46? (a) 61 (b) 53 (c) 29 (d) 46
  8. 8.Which number is the odd one out: 59, 42, 79, 89? (a) 59 (b) 42 (c) 79 (d) 89
  9. 9.Which number is the odd one out: 66, 33, 48, 96? (a) 66 (b) 33 (c) 48 (d) 96
  10. 10.Which number is the odd one out: 64, 44, 56, 49? (a) 64 (b) 44 (c) 56 (d) 49
  11. 11.Which number is the odd one out: 29, 83, 97, 42? (a) 29 (b) 83 (c) 97 (d) 42
  12. 12.Which number is the odd one out: 31, 19, 71, 64? (a) 31 (b) 19 (c) 71 (d) 64
  13. 13.Which number is the odd one out: 54, 83, 2, 3? (a) 54 (b) 83 (c) 2 (d) 3
  14. 14.Which number is the odd one out: 5, 45, 18, 54? (a) 5 (b) 45 (c) 18 (d) 54
  15. 15.Which number is the odd one out: 90, 18, 99, 55? (a) 90 (b) 18 (c) 99 (d) 55
  16. 16.Which number is the odd one out: 47, 68, 2, 13? (a) 47 (b) 68 (c) 2 (d) 13
  17. 17.Which number is the odd one out: 59, 67, 29, 24? (a) 59 (b) 67 (c) 29 (d) 24
  18. 18.Which number is the odd one out: 64, 71, 8, 16? (a) 64 (b) 71 (c) 8 (d) 16
  19. 19.Which number is the odd one out: 53, 50, 2, 19? (a) 53 (b) 50 (c) 2 (d) 19
  20. 20.Which number is the odd one out: 61, 83, 43, 85? (a) 61 (b) 83 (c) 43 (d) 85
  21. 21.Which number is the odd one out: 11, 47, 36, 37? (a) 11 (b) 47 (c) 36 (d) 37
  22. 22.Which number is the odd one out: 59, 30, 79, 29? (a) 59 (b) 30 (c) 79 (d) 29
  23. 23.Which number is the odd one out: 59, 70, 71, 17? (a) 59 (b) 70 (c) 71 (d) 17
  24. 24.Which number is the odd one out: 97, 65, 43, 83? (a) 97 (b) 65 (c) 43 (d) 83
  25. 25.Which number is the odd one out: 83, 41, 4, 67? (a) 83 (b) 41 (c) 4 (d) 67
  26. 26.Which number is the odd one out: 92, 41, 89, 29? (a) 92 (b) 41 (c) 89 (d) 29
  27. 27.Which number is the odd one out: 30, 2, 41, 13? (a) 30 (b) 2 (c) 41 (d) 13
  28. 28.Which number is the odd one out: 71, 30, 29, 97? (a) 71 (b) 30 (c) 29 (d) 97
  29. 29.Which number is the odd one out: 2, 13, 42, 67? (a) 2 (b) 13 (c) 42 (d) 67
  30. 30.Which number is the odd one out: 69, 25, 24, 96? (a) 69 (b) 25 (c) 24 (d) 96
  31. 31.Which number is the odd one out: 41, 3, 2, 24? (a) 41 (b) 3 (c) 2 (d) 24
  32. 32.Which number is the odd one out: 8, 76, 40, 80? (a) 8 (b) 76 (c) 40 (d) 80
  33. 33.Which number is the odd one out: 12, 14, 32, 24? (a) 12 (b) 14 (c) 32 (d) 24
  34. 34.Which number is the odd one out: 90, 50, 72, 10? (a) 90 (b) 50 (c) 72 (d) 10
  35. 35.Which number is the odd one out: 54, 18, 72, 88? (a) 54 (b) 18 (c) 72 (d) 88
  36. 36.Which number is the odd one out: 13, 61, 32, 43? (a) 13 (b) 61 (c) 32 (d) 43
  37. 37.Which number is the odd one out: 30, 60, 52, 50? (a) 30 (b) 60 (c) 52 (d) 50
  38. 38.Which number is the odd one out: 53, 59, 9, 29? (a) 53 (b) 59 (c) 9 (d) 29
  39. 39.Which number is the odd one out: 23, 29, 10, 73? (a) 23 (b) 29 (c) 10 (d) 73
  40. 40.Which number is the odd one out: 29, 23, 72, 31? (a) 29 (b) 23 (c) 72 (d) 31

Answer key

  1. 27
  2. 91
  3. 93
  4. 32
  5. 75
  6. 42
  7. 46
  8. 42
  9. 33
  10. 49
  11. 42
  12. 64
  13. 54
  14. 5
  15. 55
  16. 68
  17. 24
  18. 71
  19. 50
  20. 85
  21. 36
  22. 30
  23. 70
  24. 65
  25. 4
  26. 92
  27. 30
  28. 30
  29. 42
  30. 25
  31. 24
  32. 76
  33. 14
  34. 72
  35. 88
  36. 32
  37. 52
  38. 9
  39. 10
  40. 72

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