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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 672 · 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: 19, 8, 73, 37? (a) 19 (b) 8 (c) 73 (d) 37
  2. 2.Which number is the odd one out: 58, 82, 13, 26? (a) 58 (b) 82 (c) 13 (d) 26
  3. 3.Which number is the odd one out: 41, 31, 66, 29? (a) 41 (b) 31 (c) 66 (d) 29
  4. 4.Which number is the odd one out: 82, 71, 94, 62? (a) 82 (b) 71 (c) 94 (d) 62
  5. 5.Which number is the odd one out: 67, 89, 61, 96? (a) 67 (b) 89 (c) 61 (d) 96
  6. 6.Which number is the odd one out: 40, 80, 67, 52? (a) 40 (b) 80 (c) 67 (d) 52
  7. 7.Which number is the odd one out: 22, 17, 41, 13? (a) 22 (b) 17 (c) 41 (d) 13
  8. 8.Which number is the odd one out: 37, 53, 87, 41? (a) 37 (b) 53 (c) 87 (d) 41
  9. 9.Which number is the odd one out: 20, 5, 97, 41? (a) 20 (b) 5 (c) 97 (d) 41
  10. 10.Which number is the odd one out: 43, 61, 83, 45? (a) 43 (b) 61 (c) 83 (d) 45
  11. 11.Which number is the odd one out: 33, 73, 83, 31? (a) 33 (b) 73 (c) 83 (d) 31
  12. 12.Which number is the odd one out: 4, 16, 7, 64? (a) 4 (b) 16 (c) 7 (d) 64
  13. 13.Which number is the odd one out: 4, 66, 64, 96? (a) 4 (b) 66 (c) 64 (d) 96
  14. 14.Which number is the odd one out: 89, 7, 28, 11? (a) 89 (b) 7 (c) 28 (d) 11
  15. 15.Which number is the odd one out: 11, 79, 34, 23? (a) 11 (b) 79 (c) 34 (d) 23
  16. 16.Which number is the odd one out: 97, 71, 83, 49? (a) 97 (b) 71 (c) 83 (d) 49
  17. 17.Which number is the odd one out: 40, 80, 95, 9? (a) 40 (b) 80 (c) 95 (d) 9
  18. 18.Which number is the odd one out: 92, 39, 44, 74? (a) 92 (b) 39 (c) 44 (d) 74
  19. 19.Which number is the odd one out: 75, 85, 9, 95? (a) 75 (b) 85 (c) 9 (d) 95
  20. 20.Which number is the odd one out: 11, 17, 53, 90? (a) 11 (b) 17 (c) 53 (d) 90
  21. 21.Which number is the odd one out: 43, 69, 6, 29? (a) 43 (b) 69 (c) 6 (d) 29
  22. 22.Which number is the odd one out: 24, 72, 60, 45? (a) 24 (b) 72 (c) 60 (d) 45
  23. 23.Which number is the odd one out: 24, 85, 48, 96? (a) 24 (b) 85 (c) 48 (d) 96
  24. 24.Which number is the odd one out: 7, 91, 21, 3? (a) 7 (b) 91 (c) 21 (d) 3
  25. 25.Which number is the odd one out: 53, 10, 71, 43? (a) 53 (b) 10 (c) 71 (d) 43
  26. 26.Which number is the odd one out: 70, 81, 9, 25? (a) 70 (b) 81 (c) 9 (d) 25
  27. 27.Which number is the odd one out: 27, 73, 83, 41? (a) 27 (b) 73 (c) 83 (d) 41
  28. 28.Which number is the odd one out: 9, 93, 27, 81? (a) 9 (b) 93 (c) 27 (d) 81
  29. 29.Which number is the odd one out: 44, 11, 13, 2? (a) 44 (b) 11 (c) 13 (d) 2
  30. 30.Which number is the odd one out: 29, 73, 47, 32? (a) 29 (b) 73 (c) 47 (d) 32
  31. 31.Which number is the odd one out: 44, 53, 41, 73? (a) 44 (b) 53 (c) 41 (d) 73
  32. 32.Which number is the odd one out: 84, 97, 23, 7? (a) 84 (b) 97 (c) 23 (d) 7
  33. 33.Which number is the odd one out: 57, 17, 67, 79? (a) 57 (b) 17 (c) 67 (d) 79
  34. 34.Which number is the odd one out: 7, 89, 26, 91? (a) 7 (b) 89 (c) 26 (d) 91
  35. 35.Which number is the odd one out: 8, 4, 30, 16? (a) 8 (b) 4 (c) 30 (d) 16
  36. 36.Which number is the odd one out: 61, 59, 53, 84? (a) 61 (b) 59 (c) 53 (d) 84
  37. 37.Which number is the odd one out: 44, 8, 65, 40? (a) 44 (b) 8 (c) 65 (d) 40
  38. 38.Which number is the odd one out: 62, 61, 23, 11? (a) 62 (b) 61 (c) 23 (d) 11
  39. 39.Which number is the odd one out: 52, 13, 71, 73? (a) 52 (b) 13 (c) 71 (d) 73
  40. 40.Which number is the odd one out: 30, 25, 33, 78? (a) 30 (b) 25 (c) 33 (d) 78

Answer key

  1. 8
  2. 13
  3. 66
  4. 71
  5. 96
  6. 67
  7. 22
  8. 87
  9. 20
  10. 45
  11. 33
  12. 7
  13. 66
  14. 28
  15. 34
  16. 49
  17. 9
  18. 39
  19. 9
  20. 90
  21. 6
  22. 45
  23. 85
  24. 3
  25. 10
  26. 70
  27. 27
  28. 93
  29. 44
  30. 32
  31. 44
  32. 84
  33. 57
  34. 26
  35. 30
  36. 84
  37. 65
  38. 62
  39. 52
  40. 25

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