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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 789 · 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: 9, 91, 49, 81? (a) 9 (b) 91 (c) 49 (d) 81
  2. 2.Which number is the odd one out: 99, 9, 64, 16? (a) 99 (b) 9 (c) 64 (d) 16
  3. 3.Which number is the odd one out: 19, 83, 6, 2? (a) 19 (b) 83 (c) 6 (d) 2
  4. 4.Which number is the odd one out: 47, 78, 23, 79? (a) 47 (b) 78 (c) 23 (d) 79
  5. 5.Which number is the odd one out: 91, 66, 21, 98? (a) 91 (b) 66 (c) 21 (d) 98
  6. 6.Which number is the odd one out: 13, 44, 59, 23? (a) 13 (b) 44 (c) 59 (d) 23
  7. 7.Which number is the odd one out: 28, 27, 99, 87? (a) 28 (b) 27 (c) 99 (d) 87
  8. 8.Which number is the odd one out: 34, 62, 3, 58? (a) 34 (b) 62 (c) 3 (d) 58
  9. 9.Which number is the odd one out: 97, 2, 31, 83? (a) 97 (b) 2 (c) 31 (d) 83
  10. 10.Which number is the odd one out: 92, 32, 56, 21? (a) 92 (b) 32 (c) 56 (d) 21
  11. 11.Which number is the odd one out: 24, 53, 48, 96? (a) 24 (b) 53 (c) 48 (d) 96
  12. 12.Which number is the odd one out: 96, 97, 2, 43? (a) 96 (b) 97 (c) 2 (d) 43
  13. 13.Which number is the odd one out: 24, 96, 23, 88? (a) 24 (b) 96 (c) 23 (d) 88
  14. 14.Which number is the odd one out: 19, 3, 37, 78? (a) 19 (b) 3 (c) 37 (d) 78
  15. 15.Which number is the odd one out: 47, 48, 72, 54? (a) 47 (b) 48 (c) 72 (d) 54
  16. 16.Which number is the odd one out: 11, 89, 36, 23? (a) 11 (b) 89 (c) 36 (d) 23
  17. 17.Which number is the odd one out: 14, 11, 41, 31? (a) 14 (b) 11 (c) 41 (d) 31
  18. 18.Which number is the odd one out: 16, 95, 80, 64? (a) 16 (b) 95 (c) 80 (d) 64
  19. 19.Which number is the odd one out: 29, 27, 13, 31? (a) 29 (b) 27 (c) 13 (d) 31
  20. 20.Which number is the odd one out: 83, 61, 58, 29? (a) 83 (b) 61 (c) 58 (d) 29
  21. 21.Which number is the odd one out: 47, 42, 53, 37? (a) 47 (b) 42 (c) 53 (d) 37
  22. 22.Which number is the odd one out: 83, 2, 18, 53? (a) 83 (b) 2 (c) 18 (d) 53
  23. 23.Which number is the odd one out: 17, 61, 43, 58? (a) 17 (b) 61 (c) 43 (d) 58
  24. 24.Which number is the odd one out: 59, 13, 60, 73? (a) 59 (b) 13 (c) 60 (d) 73
  25. 25.Which number is the odd one out: 6, 41, 13, 89? (a) 6 (b) 41 (c) 13 (d) 89
  26. 26.Which number is the odd one out: 7, 18, 72, 24? (a) 7 (b) 18 (c) 72 (d) 24
  27. 27.Which number is the odd one out: 39, 71, 19, 78? (a) 39 (b) 71 (c) 19 (d) 78
  28. 28.Which number is the odd one out: 97, 23, 26, 89? (a) 97 (b) 23 (c) 26 (d) 89
  29. 29.Which number is the odd one out: 43, 71, 14, 41? (a) 43 (b) 71 (c) 14 (d) 41
  30. 30.Which number is the odd one out: 11, 37, 30, 53? (a) 11 (b) 37 (c) 30 (d) 53
  31. 31.Which number is the odd one out: 17, 31, 82, 37? (a) 17 (b) 31 (c) 82 (d) 37
  32. 32.Which number is the odd one out: 35, 30, 77, 98? (a) 35 (b) 30 (c) 77 (d) 98
  33. 33.Which number is the odd one out: 18, 60, 45, 99? (a) 18 (b) 60 (c) 45 (d) 99
  34. 34.Which number is the odd one out: 51, 33, 54, 27? (a) 51 (b) 33 (c) 54 (d) 27
  35. 35.Which number is the odd one out: 48, 98, 12, 96? (a) 48 (b) 98 (c) 12 (d) 96
  36. 36.Which number is the odd one out: 17, 7, 28, 37? (a) 17 (b) 7 (c) 28 (d) 37
  37. 37.Which number is the odd one out: 32, 43, 96, 48? (a) 32 (b) 43 (c) 96 (d) 48
  38. 38.Which number is the odd one out: 17, 29, 19, 6? (a) 17 (b) 29 (c) 19 (d) 6
  39. 39.Which number is the odd one out: 97, 23, 4, 79? (a) 97 (b) 23 (c) 4 (d) 79
  40. 40.Which number is the odd one out: 43, 13, 69, 23? (a) 43 (b) 13 (c) 69 (d) 23

Answer key

  1. 91
  2. 99
  3. 6
  4. 78
  5. 66
  6. 44
  7. 28
  8. 3
  9. 2
  10. 21
  11. 53
  12. 96
  13. 23
  14. 78
  15. 47
  16. 36
  17. 14
  18. 95
  19. 27
  20. 58
  21. 42
  22. 18
  23. 58
  24. 60
  25. 6
  26. 7
  27. 78
  28. 26
  29. 14
  30. 30
  31. 82
  32. 30
  33. 60
  34. 54
  35. 98
  36. 28
  37. 43
  38. 6
  39. 4
  40. 69

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