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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 923 · 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: 31, 36, 59, 17? (a) 31 (b) 36 (c) 59 (d) 17
  2. 2.Which number is the odd one out: 47, 39, 97, 53? (a) 47 (b) 39 (c) 97 (d) 53
  3. 3.Which number is the odd one out: 2, 4, 79, 31? (a) 2 (b) 4 (c) 79 (d) 31
  4. 4.Which number is the odd one out: 71, 61, 38, 41? (a) 71 (b) 61 (c) 38 (d) 41
  5. 5.Which number is the odd one out: 71, 16, 64, 68? (a) 71 (b) 16 (c) 64 (d) 68
  6. 6.Which number is the odd one out: 12, 62, 32, 96? (a) 12 (b) 62 (c) 32 (d) 96
  7. 7.Which number is the odd one out: 43, 73, 51, 6? (a) 43 (b) 73 (c) 51 (d) 6
  8. 8.Which number is the odd one out: 24, 12, 96, 20? (a) 24 (b) 12 (c) 96 (d) 20
  9. 9.Which number is the odd one out: 71, 29, 80, 41? (a) 71 (b) 29 (c) 80 (d) 41
  10. 10.Which number is the odd one out: 97, 4, 23, 71? (a) 97 (b) 4 (c) 23 (d) 71
  11. 11.Which number is the odd one out: 67, 83, 97, 20? (a) 67 (b) 83 (c) 97 (d) 20
  12. 12.Which number is the odd one out: 9, 81, 69, 27? (a) 9 (b) 81 (c) 69 (d) 27
  13. 13.Which number is the odd one out: 61, 9, 47, 97? (a) 61 (b) 9 (c) 47 (d) 97
  14. 14.Which number is the odd one out: 80, 16, 70, 64? (a) 80 (b) 16 (c) 70 (d) 64
  15. 15.Which number is the odd one out: 41, 47, 31, 85? (a) 41 (b) 47 (c) 31 (d) 85
  16. 16.Which number is the odd one out: 47, 39, 79, 17? (a) 47 (b) 39 (c) 79 (d) 17
  17. 17.Which number is the odd one out: 93, 67, 3, 28? (a) 93 (b) 67 (c) 3 (d) 28
  18. 18.Which number is the odd one out: 73, 71, 79, 9? (a) 73 (b) 71 (c) 79 (d) 9
  19. 19.Which number is the odd one out: 10, 79, 59, 29? (a) 10 (b) 79 (c) 59 (d) 29
  20. 20.Which number is the odd one out: 61, 83, 12, 19? (a) 61 (b) 83 (c) 12 (d) 19
  21. 21.Which number is the odd one out: 20, 89, 73, 5? (a) 20 (b) 89 (c) 73 (d) 5
  22. 22.Which number is the odd one out: 55, 15, 65, 48? (a) 55 (b) 15 (c) 65 (d) 48
  23. 23.Which number is the odd one out: 80, 24, 12, 60? (a) 80 (b) 24 (c) 12 (d) 60
  24. 24.Which number is the odd one out: 61, 79, 44, 41? (a) 61 (b) 79 (c) 44 (d) 41
  25. 25.Which number is the odd one out: 78, 16, 30, 60? (a) 78 (b) 16 (c) 30 (d) 60
  26. 26.Which number is the odd one out: 48, 67, 83, 41? (a) 48 (b) 67 (c) 83 (d) 41
  27. 27.Which number is the odd one out: 50, 99, 81, 9? (a) 50 (b) 99 (c) 81 (d) 9
  28. 28.Which number is the odd one out: 88, 12, 96, 58? (a) 88 (b) 12 (c) 96 (d) 58
  29. 29.Which number is the odd one out: 47, 74, 83, 61? (a) 47 (b) 74 (c) 83 (d) 61
  30. 30.Which number is the odd one out: 32, 5, 8, 88? (a) 32 (b) 5 (c) 8 (d) 88
  31. 31.Which number is the odd one out: 73, 47, 23, 81? (a) 73 (b) 47 (c) 23 (d) 81
  32. 32.Which number is the odd one out: 17, 13, 99, 3? (a) 17 (b) 13 (c) 99 (d) 3
  33. 33.Which number is the odd one out: 49, 77, 16, 98? (a) 49 (b) 77 (c) 16 (d) 98
  34. 34.Which number is the odd one out: 47, 65, 5, 17? (a) 47 (b) 65 (c) 5 (d) 17
  35. 35.Which number is the odd one out: 72, 96, 6, 45? (a) 72 (b) 96 (c) 6 (d) 45
  36. 36.Which number is the odd one out: 25, 64, 65, 16? (a) 25 (b) 64 (c) 65 (d) 16
  37. 37.Which number is the odd one out: 13, 17, 27, 11? (a) 13 (b) 17 (c) 27 (d) 11
  38. 38.Which number is the odd one out: 29, 30, 51, 61? (a) 29 (b) 30 (c) 51 (d) 61
  39. 39.Which number is the odd one out: 67, 37, 7, 28? (a) 67 (b) 37 (c) 7 (d) 28
  40. 40.Which number is the odd one out: 59, 19, 12, 97? (a) 59 (b) 19 (c) 12 (d) 97

Answer key

  1. 36
  2. 39
  3. 4
  4. 38
  5. 71
  6. 62
  7. 6
  8. 20
  9. 80
  10. 4
  11. 20
  12. 69
  13. 9
  14. 70
  15. 85
  16. 39
  17. 28
  18. 9
  19. 10
  20. 12
  21. 20
  22. 48
  23. 80
  24. 44
  25. 16
  26. 48
  27. 50
  28. 58
  29. 74
  30. 5
  31. 81
  32. 99
  33. 16
  34. 65
  35. 45
  36. 65
  37. 27
  38. 30
  39. 28
  40. 12

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