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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 120 · 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: 57, 87, 14, 21? (a) 57 (b) 87 (c) 14 (d) 21
  2. 2.Which number is the odd one out: 97, 89, 31, 30? (a) 97 (b) 89 (c) 31 (d) 30
  3. 3.Which number is the odd one out: 59, 47, 75, 97? (a) 59 (b) 47 (c) 75 (d) 97
  4. 4.Which number is the odd one out: 4, 51, 15, 75? (a) 4 (b) 51 (c) 15 (d) 75
  5. 5.Which number is the odd one out: 16, 36, 8, 48? (a) 16 (b) 36 (c) 8 (d) 48
  6. 6.Which number is the odd one out: 96, 43, 29, 13? (a) 96 (b) 43 (c) 29 (d) 13
  7. 7.Which number is the odd one out: 23, 80, 13, 17? (a) 23 (b) 80 (c) 13 (d) 17
  8. 8.Which number is the odd one out: 28, 88, 32, 8? (a) 28 (b) 88 (c) 32 (d) 8
  9. 9.Which number is the odd one out: 53, 84, 12, 28? (a) 53 (b) 84 (c) 12 (d) 28
  10. 10.Which number is the odd one out: 93, 6, 24, 96? (a) 93 (b) 6 (c) 24 (d) 96
  11. 11.Which number is the odd one out: 71, 78, 37, 67? (a) 71 (b) 78 (c) 37 (d) 67
  12. 12.Which number is the odd one out: 96, 48, 66, 34? (a) 96 (b) 48 (c) 66 (d) 34
  13. 13.Which number is the odd one out: 4, 31, 53, 41? (a) 4 (b) 31 (c) 53 (d) 41
  14. 14.Which number is the odd one out: 55, 75, 26, 33? (a) 55 (b) 75 (c) 26 (d) 33
  15. 15.Which number is the odd one out: 48, 24, 88, 4? (a) 48 (b) 24 (c) 88 (d) 4
  16. 16.Which number is the odd one out: 11, 21, 83, 13? (a) 11 (b) 21 (c) 83 (d) 13
  17. 17.Which number is the odd one out: 31, 61, 6, 67? (a) 31 (b) 61 (c) 6 (d) 67
  18. 18.Which number is the odd one out: 31, 41, 4, 19? (a) 31 (b) 41 (c) 4 (d) 19
  19. 19.Which number is the odd one out: 92, 90, 52, 20? (a) 92 (b) 90 (c) 52 (d) 20
  20. 20.Which number is the odd one out: 32, 40, 80, 77? (a) 32 (b) 40 (c) 80 (d) 77
  21. 21.Which number is the odd one out: 2, 26, 11, 34? (a) 2 (b) 26 (c) 11 (d) 34
  22. 22.Which number is the odd one out: 9, 2, 53, 81? (a) 9 (b) 2 (c) 53 (d) 81
  23. 23.Which number is the odd one out: 37, 43, 24, 29? (a) 37 (b) 43 (c) 24 (d) 29
  24. 24.Which number is the odd one out: 4, 88, 40, 80? (a) 4 (b) 88 (c) 40 (d) 80
  25. 25.Which number is the odd one out: 11, 9, 89, 41? (a) 11 (b) 9 (c) 89 (d) 41
  26. 26.Which number is the odd one out: 37, 28, 19, 71? (a) 37 (b) 28 (c) 19 (d) 71
  27. 27.Which number is the odd one out: 18, 97, 71, 67? (a) 18 (b) 97 (c) 71 (d) 67
  28. 28.Which number is the odd one out: 24, 95, 48, 87? (a) 24 (b) 95 (c) 48 (d) 87
  29. 29.Which number is the odd one out: 88, 81, 16, 9? (a) 88 (b) 81 (c) 16 (d) 9
  30. 30.Which number is the odd one out: 45, 87, 25, 27? (a) 45 (b) 87 (c) 25 (d) 27
  31. 31.Which number is the odd one out: 83, 14, 53, 23? (a) 83 (b) 14 (c) 53 (d) 23
  32. 32.Which number is the odd one out: 23, 20, 37, 11? (a) 23 (b) 20 (c) 37 (d) 11
  33. 33.Which number is the odd one out: 13, 19, 42, 71? (a) 13 (b) 19 (c) 42 (d) 71
  34. 34.Which number is the odd one out: 97, 56, 23, 47? (a) 97 (b) 56 (c) 23 (d) 47
  35. 35.Which number is the odd one out: 16, 7, 49, 64? (a) 16 (b) 7 (c) 49 (d) 64
  36. 36.Which number is the odd one out: 43, 71, 41, 57? (a) 43 (b) 71 (c) 41 (d) 57
  37. 37.Which number is the odd one out: 97, 63, 47, 17? (a) 97 (b) 63 (c) 47 (d) 17
  38. 38.Which number is the odd one out: 44, 76, 92, 7? (a) 44 (b) 76 (c) 92 (d) 7
  39. 39.Which number is the odd one out: 11, 7, 70, 13? (a) 11 (b) 7 (c) 70 (d) 13
  40. 40.Which number is the odd one out: 96, 48, 5, 80? (a) 96 (b) 48 (c) 5 (d) 80

Answer key

  1. 14
  2. 30
  3. 75
  4. 4
  5. 36
  6. 96
  7. 80
  8. 28
  9. 53
  10. 93
  11. 78
  12. 34
  13. 4
  14. 26
  15. 4
  16. 21
  17. 6
  18. 4
  19. 90
  20. 77
  21. 11
  22. 2
  23. 24
  24. 4
  25. 9
  26. 28
  27. 18
  28. 95
  29. 88
  30. 25
  31. 14
  32. 20
  33. 42
  34. 56
  35. 7
  36. 57
  37. 63
  38. 7
  39. 70
  40. 5

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