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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 798 · 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: 10, 24, 48, 96? (a) 10 (b) 24 (c) 48 (d) 96
  2. 2.Which number is the odd one out: 3, 31, 89, 21? (a) 3 (b) 31 (c) 89 (d) 21
  3. 3.Which number is the odd one out: 19, 43, 6, 31? (a) 19 (b) 43 (c) 6 (d) 31
  4. 4.Which number is the odd one out: 86, 17, 37, 31? (a) 86 (b) 17 (c) 37 (d) 31
  5. 5.Which number is the odd one out: 43, 10, 17, 53? (a) 43 (b) 10 (c) 17 (d) 53
  6. 6.Which number is the odd one out: 31, 6, 83, 11? (a) 31 (b) 6 (c) 83 (d) 11
  7. 7.Which number is the odd one out: 11, 31, 61, 72? (a) 11 (b) 31 (c) 61 (d) 72
  8. 8.Which number is the odd one out: 32, 16, 39, 64? (a) 32 (b) 16 (c) 39 (d) 64
  9. 9.Which number is the odd one out: 30, 31, 73, 53? (a) 30 (b) 31 (c) 73 (d) 53
  10. 10.Which number is the odd one out: 31, 42, 67, 89? (a) 31 (b) 42 (c) 67 (d) 89
  11. 11.Which number is the odd one out: 33, 11, 29, 43? (a) 33 (b) 11 (c) 29 (d) 43
  12. 12.Which number is the odd one out: 78, 31, 59, 89? (a) 78 (b) 31 (c) 59 (d) 89
  13. 13.Which number is the odd one out: 34, 72, 24, 18? (a) 34 (b) 72 (c) 24 (d) 18
  14. 14.Which number is the odd one out: 11, 53, 30, 13? (a) 11 (b) 53 (c) 30 (d) 13
  15. 15.Which number is the odd one out: 36, 25, 60, 54? (a) 36 (b) 25 (c) 60 (d) 54
  16. 16.Which number is the odd one out: 31, 61, 38, 37? (a) 31 (b) 61 (c) 38 (d) 37
  17. 17.Which number is the odd one out: 72, 24, 61, 54? (a) 72 (b) 24 (c) 61 (d) 54
  18. 18.Which number is the odd one out: 6, 69, 71, 43? (a) 6 (b) 69 (c) 71 (d) 43
  19. 19.Which number is the odd one out: 74, 17, 82, 86? (a) 74 (b) 17 (c) 82 (d) 86
  20. 20.Which number is the odd one out: 13, 97, 79, 76? (a) 13 (b) 97 (c) 79 (d) 76
  21. 21.Which number is the odd one out: 85, 23, 15, 75? (a) 85 (b) 23 (c) 15 (d) 75
  22. 22.Which number is the odd one out: 17, 37, 2, 79? (a) 17 (b) 37 (c) 2 (d) 79
  23. 23.Which number is the odd one out: 5, 19, 43, 85? (a) 5 (b) 19 (c) 43 (d) 85
  24. 24.Which number is the odd one out: 11, 19, 14, 67? (a) 11 (b) 19 (c) 14 (d) 67
  25. 25.Which number is the odd one out: 5, 2, 90, 3? (a) 5 (b) 2 (c) 90 (d) 3
  26. 26.Which number is the odd one out: 78, 30, 92, 60? (a) 78 (b) 30 (c) 92 (d) 60
  27. 27.Which number is the odd one out: 11, 82, 53, 61? (a) 11 (b) 82 (c) 53 (d) 61
  28. 28.Which number is the odd one out: 98, 70, 75, 77? (a) 98 (b) 70 (c) 75 (d) 77
  29. 29.Which number is the odd one out: 32, 69, 20, 80? (a) 32 (b) 69 (c) 20 (d) 80
  30. 30.Which number is the odd one out: 32, 98, 56, 88? (a) 32 (b) 98 (c) 56 (d) 88
  31. 31.Which number is the odd one out: 75, 32, 15, 50? (a) 75 (b) 32 (c) 15 (d) 50
  32. 32.Which number is the odd one out: 31, 13, 23, 99? (a) 31 (b) 13 (c) 23 (d) 99
  33. 33.Which number is the odd one out: 96, 61, 24, 32? (a) 96 (b) 61 (c) 24 (d) 32
  34. 34.Which number is the odd one out: 18, 35, 72, 48? (a) 18 (b) 35 (c) 72 (d) 48
  35. 35.Which number is the odd one out: 23, 41, 53, 44? (a) 23 (b) 41 (c) 53 (d) 44
  36. 36.Which number is the odd one out: 97, 31, 73, 32? (a) 97 (b) 31 (c) 73 (d) 32
  37. 37.Which number is the odd one out: 41, 2, 94, 61? (a) 41 (b) 2 (c) 94 (d) 61
  38. 38.Which number is the odd one out: 11, 85, 13, 83? (a) 11 (b) 85 (c) 13 (d) 83
  39. 39.Which number is the odd one out: 71, 6, 79, 47? (a) 71 (b) 6 (c) 79 (d) 47
  40. 40.Which number is the odd one out: 92, 33, 51, 39? (a) 92 (b) 33 (c) 51 (d) 39

Answer key

  1. 10
  2. 21
  3. 6
  4. 86
  5. 10
  6. 6
  7. 72
  8. 39
  9. 30
  10. 42
  11. 33
  12. 78
  13. 34
  14. 30
  15. 25
  16. 38
  17. 61
  18. 6
  19. 17
  20. 76
  21. 23
  22. 2
  23. 85
  24. 14
  25. 90
  26. 92
  27. 82
  28. 75
  29. 69
  30. 98
  31. 32
  32. 99
  33. 61
  34. 35
  35. 44
  36. 32
  37. 94
  38. 85
  39. 6
  40. 92

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