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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 472 · 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, 54, 29, 61? (a) 37 (b) 54 (c) 29 (d) 61
  2. 2.Which number is the odd one out: 74, 30, 90, 18? (a) 74 (b) 30 (c) 90 (d) 18
  3. 3.Which number is the odd one out: 65, 85, 81, 25? (a) 65 (b) 85 (c) 81 (d) 25
  4. 4.Which number is the odd one out: 97, 17, 23, 87? (a) 97 (b) 17 (c) 23 (d) 87
  5. 5.Which number is the odd one out: 32, 29, 47, 71? (a) 32 (b) 29 (c) 47 (d) 71
  6. 6.Which number is the odd one out: 29, 57, 19, 3? (a) 29 (b) 57 (c) 19 (d) 3
  7. 7.Which number is the odd one out: 5, 6, 78, 34? (a) 5 (b) 6 (c) 78 (d) 34
  8. 8.Which number is the odd one out: 16, 64, 32, 63? (a) 16 (b) 64 (c) 32 (d) 63
  9. 9.Which number is the odd one out: 59, 17, 34, 19? (a) 59 (b) 17 (c) 34 (d) 19
  10. 10.Which number is the odd one out: 8, 70, 32, 80? (a) 8 (b) 70 (c) 32 (d) 80
  11. 11.Which number is the odd one out: 95, 29, 67, 53? (a) 95 (b) 29 (c) 67 (d) 53
  12. 12.Which number is the odd one out: 97, 47, 79, 27? (a) 97 (b) 47 (c) 79 (d) 27
  13. 13.Which number is the odd one out: 53, 61, 92, 41? (a) 53 (b) 61 (c) 92 (d) 41
  14. 14.Which number is the odd one out: 14, 77, 44, 91? (a) 14 (b) 77 (c) 44 (d) 91
  15. 15.Which number is the odd one out: 19, 87, 53, 97? (a) 19 (b) 87 (c) 53 (d) 97
  16. 16.Which number is the odd one out: 89, 16, 29, 43? (a) 89 (b) 16 (c) 29 (d) 43
  17. 17.Which number is the odd one out: 83, 53, 80, 5? (a) 83 (b) 53 (c) 80 (d) 5
  18. 18.Which number is the odd one out: 56, 88, 21, 8? (a) 56 (b) 88 (c) 21 (d) 8
  19. 19.Which number is the odd one out: 22, 37, 89, 23? (a) 22 (b) 37 (c) 89 (d) 23
  20. 20.Which number is the odd one out: 13, 79, 59, 33? (a) 13 (b) 79 (c) 59 (d) 33
  21. 21.Which number is the odd one out: 89, 19, 22, 23? (a) 89 (b) 19 (c) 22 (d) 23
  22. 22.Which number is the odd one out: 83, 44, 89, 31? (a) 83 (b) 44 (c) 89 (d) 31
  23. 23.Which number is the odd one out: 2, 62, 41, 74? (a) 2 (b) 62 (c) 41 (d) 74
  24. 24.Which number is the odd one out: 90, 75, 66, 45? (a) 90 (b) 75 (c) 66 (d) 45
  25. 25.Which number is the odd one out: 53, 28, 41, 17? (a) 53 (b) 28 (c) 41 (d) 17
  26. 26.Which number is the odd one out: 29, 23, 71, 22? (a) 29 (b) 23 (c) 71 (d) 22
  27. 27.Which number is the odd one out: 6, 97, 79, 67? (a) 6 (b) 97 (c) 79 (d) 67
  28. 28.Which number is the odd one out: 73, 11, 67, 49? (a) 73 (b) 11 (c) 67 (d) 49
  29. 29.Which number is the odd one out: 2, 82, 41, 43? (a) 2 (b) 82 (c) 41 (d) 43
  30. 30.Which number is the odd one out: 77, 96, 28, 91? (a) 77 (b) 96 (c) 28 (d) 91
  31. 31.Which number is the odd one out: 75, 29, 90, 89? (a) 75 (b) 29 (c) 90 (d) 89
  32. 32.Which number is the odd one out: 41, 44, 79, 59? (a) 41 (b) 44 (c) 79 (d) 59
  33. 33.Which number is the odd one out: 97, 24, 23, 89? (a) 97 (b) 24 (c) 23 (d) 89
  34. 34.Which number is the odd one out: 61, 29, 83, 82? (a) 61 (b) 29 (c) 83 (d) 82
  35. 35.Which number is the odd one out: 17, 71, 5, 50? (a) 17 (b) 71 (c) 5 (d) 50
  36. 36.Which number is the odd one out: 58, 85, 65, 95? (a) 58 (b) 85 (c) 65 (d) 95
  37. 37.Which number is the odd one out: 23, 79, 30, 29? (a) 23 (b) 79 (c) 30 (d) 29
  38. 38.Which number is the odd one out: 14, 67, 47, 17? (a) 14 (b) 67 (c) 47 (d) 17
  39. 39.Which number is the odd one out: 9, 37, 47, 73? (a) 9 (b) 37 (c) 47 (d) 73
  40. 40.Which number is the odd one out: 29, 73, 23, 20? (a) 29 (b) 73 (c) 23 (d) 20

Answer key

  1. 54
  2. 74
  3. 81
  4. 87
  5. 32
  6. 57
  7. 5
  8. 63
  9. 34
  10. 70
  11. 95
  12. 27
  13. 92
  14. 44
  15. 87
  16. 16
  17. 80
  18. 21
  19. 22
  20. 33
  21. 22
  22. 44
  23. 41
  24. 66
  25. 28
  26. 22
  27. 6
  28. 49
  29. 82
  30. 96
  31. 90
  32. 44
  33. 24
  34. 82
  35. 50
  36. 58
  37. 30
  38. 14
  39. 9
  40. 20

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