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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 185 · 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: 20, 59, 13, 43? (a) 20 (b) 59 (c) 13 (d) 43
  2. 2.Which number is the odd one out: 81, 83, 29, 71? (a) 81 (b) 83 (c) 29 (d) 71
  3. 3.Which number is the odd one out: 6, 3, 73, 2? (a) 6 (b) 3 (c) 73 (d) 2
  4. 4.Which number is the odd one out: 53, 28, 31, 71? (a) 53 (b) 28 (c) 31 (d) 71
  5. 5.Which number is the odd one out: 13, 59, 79, 58? (a) 13 (b) 59 (c) 79 (d) 58
  6. 6.Which number is the odd one out: 71, 64, 29, 37? (a) 71 (b) 64 (c) 29 (d) 37
  7. 7.Which number is the odd one out: 61, 11, 20, 83? (a) 61 (b) 11 (c) 20 (d) 83
  8. 8.Which number is the odd one out: 75, 83, 3, 23? (a) 75 (b) 83 (c) 3 (d) 23
  9. 9.Which number is the odd one out: 96, 20, 32, 24? (a) 96 (b) 20 (c) 32 (d) 24
  10. 10.Which number is the odd one out: 11, 73, 51, 59? (a) 11 (b) 73 (c) 51 (d) 59
  11. 11.Which number is the odd one out: 54, 29, 83, 53? (a) 54 (b) 29 (c) 83 (d) 53
  12. 12.Which number is the odd one out: 12, 68, 18, 52? (a) 12 (b) 68 (c) 18 (d) 52
  13. 13.Which number is the odd one out: 96, 63, 48, 24? (a) 96 (b) 63 (c) 48 (d) 24
  14. 14.Which number is the odd one out: 31, 37, 28, 47? (a) 31 (b) 37 (c) 28 (d) 47
  15. 15.Which number is the odd one out: 69, 73, 83, 97? (a) 69 (b) 73 (c) 83 (d) 97
  16. 16.Which number is the odd one out: 96, 23, 97, 79? (a) 96 (b) 23 (c) 97 (d) 79
  17. 17.Which number is the odd one out: 16, 57, 4, 32? (a) 16 (b) 57 (c) 4 (d) 32
  18. 18.Which number is the odd one out: 47, 8, 80, 20? (a) 47 (b) 8 (c) 80 (d) 20
  19. 19.Which number is the odd one out: 3, 69, 41, 97? (a) 3 (b) 69 (c) 41 (d) 97
  20. 20.Which number is the odd one out: 53, 9, 81, 99? (a) 53 (b) 9 (c) 81 (d) 99
  21. 21.Which number is the odd one out: 8, 43, 47, 71? (a) 8 (b) 43 (c) 47 (d) 71
  22. 22.Which number is the odd one out: 70, 15, 69, 87? (a) 70 (b) 15 (c) 69 (d) 87
  23. 23.Which number is the odd one out: 26, 83, 61, 43? (a) 26 (b) 83 (c) 61 (d) 43
  24. 24.Which number is the odd one out: 97, 11, 68, 19? (a) 97 (b) 11 (c) 68 (d) 19
  25. 25.Which number is the odd one out: 24, 83, 12, 96? (a) 24 (b) 83 (c) 12 (d) 96
  26. 26.Which number is the odd one out: 80, 40, 26, 68? (a) 80 (b) 40 (c) 26 (d) 68
  27. 27.Which number is the odd one out: 28, 70, 42, 60? (a) 28 (b) 70 (c) 42 (d) 60
  28. 28.Which number is the odd one out: 8, 6, 88, 48? (a) 8 (b) 6 (c) 88 (d) 48
  29. 29.Which number is the odd one out: 65, 13, 73, 41? (a) 65 (b) 13 (c) 73 (d) 41
  30. 30.Which number is the odd one out: 11, 53, 36, 2? (a) 11 (b) 53 (c) 36 (d) 2
  31. 31.Which number is the odd one out: 17, 31, 14, 43? (a) 17 (b) 31 (c) 14 (d) 43
  32. 32.Which number is the odd one out: 58, 62, 25, 10? (a) 58 (b) 62 (c) 25 (d) 10
  33. 33.Which number is the odd one out: 24, 97, 96, 88? (a) 24 (b) 97 (c) 96 (d) 88
  34. 34.Which number is the odd one out: 48, 12, 96, 77? (a) 48 (b) 12 (c) 96 (d) 77
  35. 35.Which number is the odd one out: 97, 73, 17, 40? (a) 97 (b) 73 (c) 17 (d) 40
  36. 36.Which number is the odd one out: 23, 30, 47, 87? (a) 23 (b) 30 (c) 47 (d) 87
  37. 37.Which number is the odd one out: 86, 35, 70, 65? (a) 86 (b) 35 (c) 70 (d) 65
  38. 38.Which number is the odd one out: 5, 34, 46, 94? (a) 5 (b) 34 (c) 46 (d) 94
  39. 39.Which number is the odd one out: 59, 73, 43, 81? (a) 59 (b) 73 (c) 43 (d) 81
  40. 40.Which number is the odd one out: 79, 44, 59, 83? (a) 79 (b) 44 (c) 59 (d) 83

Answer key

  1. 20
  2. 81
  3. 6
  4. 28
  5. 58
  6. 64
  7. 20
  8. 75
  9. 20
  10. 51
  11. 54
  12. 18
  13. 63
  14. 28
  15. 69
  16. 96
  17. 57
  18. 47
  19. 69
  20. 53
  21. 8
  22. 70
  23. 26
  24. 68
  25. 83
  26. 26
  27. 60
  28. 6
  29. 65
  30. 36
  31. 14
  32. 25
  33. 97
  34. 77
  35. 40
  36. 30
  37. 86
  38. 5
  39. 81
  40. 44

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