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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 769 · 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: 37, 2, 17, 84? (a) 37 (b) 2 (c) 17 (d) 84
  2. 2.Which number is the odd one out: 71, 41, 66, 43? (a) 71 (b) 41 (c) 66 (d) 43
  3. 3.Which number is the odd one out: 67, 8, 17, 2? (a) 67 (b) 8 (c) 17 (d) 2
  4. 4.Which number is the odd one out: 13, 37, 11, 35? (a) 13 (b) 37 (c) 11 (d) 35
  5. 5.Which number is the odd one out: 17, 24, 53, 39? (a) 17 (b) 24 (c) 53 (d) 39
  6. 6.Which number is the odd one out: 73, 17, 37, 80? (a) 73 (b) 17 (c) 37 (d) 80
  7. 7.Which number is the odd one out: 19, 84, 31, 97? (a) 19 (b) 84 (c) 31 (d) 97
  8. 8.Which number is the odd one out: 12, 24, 80, 85? (a) 12 (b) 24 (c) 80 (d) 85
  9. 9.Which number is the odd one out: 29, 43, 3, 66? (a) 29 (b) 43 (c) 3 (d) 66
  10. 10.Which number is the odd one out: 3, 41, 78, 79? (a) 3 (b) 41 (c) 78 (d) 79
  11. 11.Which number is the odd one out: 48, 43, 29, 41? (a) 48 (b) 43 (c) 29 (d) 41
  12. 12.Which number is the odd one out: 50, 54, 90, 18? (a) 50 (b) 54 (c) 90 (d) 18
  13. 13.Which number is the odd one out: 25, 48, 24, 30? (a) 25 (b) 48 (c) 24 (d) 30
  14. 14.Which number is the odd one out: 9, 75, 95, 25? (a) 9 (b) 75 (c) 95 (d) 25
  15. 15.Which number is the odd one out: 27, 24, 81, 36? (a) 27 (b) 24 (c) 81 (d) 36
  16. 16.Which number is the odd one out: 85, 97, 11, 53? (a) 85 (b) 97 (c) 11 (d) 53
  17. 17.Which number is the odd one out: 27, 16, 91, 63? (a) 27 (b) 16 (c) 91 (d) 63
  18. 18.Which number is the odd one out: 93, 20, 57, 87? (a) 93 (b) 20 (c) 57 (d) 87
  19. 19.Which number is the odd one out: 13, 41, 42, 73? (a) 13 (b) 41 (c) 42 (d) 73
  20. 20.Which number is the odd one out: 72, 54, 48, 18? (a) 72 (b) 54 (c) 48 (d) 18
  21. 21.Which number is the odd one out: 81, 64, 56, 9? (a) 81 (b) 64 (c) 56 (d) 9
  22. 22.Which number is the odd one out: 13, 75, 95, 15? (a) 13 (b) 75 (c) 95 (d) 15
  23. 23.Which number is the odd one out: 11, 37, 13, 85? (a) 11 (b) 37 (c) 13 (d) 85
  24. 24.Which number is the odd one out: 47, 38, 17, 89? (a) 47 (b) 38 (c) 17 (d) 89
  25. 25.Which number is the odd one out: 12, 81, 36, 9? (a) 12 (b) 81 (c) 36 (d) 9
  26. 26.Which number is the odd one out: 89, 47, 8, 19? (a) 89 (b) 47 (c) 8 (d) 19
  27. 27.Which number is the odd one out: 13, 83, 2, 78? (a) 13 (b) 83 (c) 2 (d) 78
  28. 28.Which number is the odd one out: 59, 67, 76, 31? (a) 59 (b) 67 (c) 76 (d) 31
  29. 29.Which number is the odd one out: 12, 20, 54, 18? (a) 12 (b) 20 (c) 54 (d) 18
  30. 30.Which number is the odd one out: 99, 94, 86, 22? (a) 99 (b) 94 (c) 86 (d) 22
  31. 31.Which number is the odd one out: 61, 79, 37, 39? (a) 61 (b) 79 (c) 37 (d) 39
  32. 32.Which number is the odd one out: 60, 37, 73, 41? (a) 60 (b) 37 (c) 73 (d) 41
  33. 33.Which number is the odd one out: 37, 23, 49, 89? (a) 37 (b) 23 (c) 49 (d) 89
  34. 34.Which number is the odd one out: 23, 33, 53, 13? (a) 23 (b) 33 (c) 53 (d) 13
  35. 35.Which number is the odd one out: 13, 79, 83, 30? (a) 13 (b) 79 (c) 83 (d) 30
  36. 36.Which number is the odd one out: 69, 83, 17, 79? (a) 69 (b) 83 (c) 17 (d) 79
  37. 37.Which number is the odd one out: 4, 43, 65, 5? (a) 4 (b) 43 (c) 65 (d) 5
  38. 38.Which number is the odd one out: 7, 53, 13, 28? (a) 7 (b) 53 (c) 13 (d) 28
  39. 39.Which number is the odd one out: 47, 24, 17, 71? (a) 47 (b) 24 (c) 17 (d) 71
  40. 40.Which number is the odd one out: 16, 79, 73, 47? (a) 16 (b) 79 (c) 73 (d) 47

Answer key

  1. 84
  2. 66
  3. 8
  4. 35
  5. 24
  6. 80
  7. 84
  8. 85
  9. 66
  10. 78
  11. 48
  12. 50
  13. 25
  14. 9
  15. 24
  16. 85
  17. 16
  18. 20
  19. 42
  20. 48
  21. 56
  22. 13
  23. 85
  24. 38
  25. 12
  26. 8
  27. 78
  28. 76
  29. 20
  30. 99
  31. 39
  32. 60
  33. 49
  34. 33
  35. 30
  36. 69
  37. 4
  38. 28
  39. 24
  40. 16

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