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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 81 · 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: 54, 45, 10, 95? (a) 54 (b) 45 (c) 10 (d) 95
  2. 2.Which number is the odd one out: 9, 85, 25, 65? (a) 9 (b) 85 (c) 25 (d) 65
  3. 3.Which number is the odd one out: 31, 11, 86, 43? (a) 31 (b) 11 (c) 86 (d) 43
  4. 4.Which number is the odd one out: 37, 79, 18, 31? (a) 37 (b) 79 (c) 18 (d) 31
  5. 5.Which number is the odd one out: 96, 6, 63, 72? (a) 96 (b) 6 (c) 63 (d) 72
  6. 6.Which number is the odd one out: 35, 21, 14, 90? (a) 35 (b) 21 (c) 14 (d) 90
  7. 7.Which number is the odd one out: 92, 45, 40, 8? (a) 92 (b) 45 (c) 40 (d) 8
  8. 8.Which number is the odd one out: 81, 4, 9, 56? (a) 81 (b) 4 (c) 9 (d) 56
  9. 9.Which number is the odd one out: 11, 30, 89, 2? (a) 11 (b) 30 (c) 89 (d) 2
  10. 10.Which number is the odd one out: 23, 54, 31, 71? (a) 23 (b) 54 (c) 31 (d) 71
  11. 11.Which number is the odd one out: 67, 61, 53, 38? (a) 67 (b) 61 (c) 53 (d) 38
  12. 12.Which number is the odd one out: 11, 41, 61, 94? (a) 11 (b) 41 (c) 61 (d) 94
  13. 13.Which number is the odd one out: 73, 17, 59, 77? (a) 73 (b) 17 (c) 59 (d) 77
  14. 14.Which number is the odd one out: 13, 18, 97, 59? (a) 13 (b) 18 (c) 97 (d) 59
  15. 15.Which number is the odd one out: 30, 48, 24, 55? (a) 30 (b) 48 (c) 24 (d) 55
  16. 16.Which number is the odd one out: 12, 32, 24, 8? (a) 12 (b) 32 (c) 24 (d) 8
  17. 17.Which number is the odd one out: 11, 61, 84, 17? (a) 11 (b) 61 (c) 84 (d) 17
  18. 18.Which number is the odd one out: 19, 30, 89, 97? (a) 19 (b) 30 (c) 89 (d) 97
  19. 19.Which number is the odd one out: 19, 71, 2, 61? (a) 19 (b) 71 (c) 2 (d) 61
  20. 20.Which number is the odd one out: 52, 59, 31, 19? (a) 52 (b) 59 (c) 31 (d) 19
  21. 21.Which number is the odd one out: 26, 5, 2, 38? (a) 26 (b) 5 (c) 2 (d) 38
  22. 22.Which number is the odd one out: 40, 24, 48, 65? (a) 40 (b) 24 (c) 48 (d) 65
  23. 23.Which number is the odd one out: 8, 16, 17, 64? (a) 8 (b) 16 (c) 17 (d) 64
  24. 24.Which number is the odd one out: 16, 49, 48, 96? (a) 16 (b) 49 (c) 48 (d) 96
  25. 25.Which number is the odd one out: 67, 96, 61, 59? (a) 67 (b) 96 (c) 61 (d) 59
  26. 26.Which number is the odd one out: 35, 7, 89, 29? (a) 35 (b) 7 (c) 89 (d) 29
  27. 27.Which number is the odd one out: 62, 35, 86, 26? (a) 62 (b) 35 (c) 86 (d) 26
  28. 28.Which number is the odd one out: 48, 38, 8, 24? (a) 48 (b) 38 (c) 8 (d) 24
  29. 29.Which number is the odd one out: 3, 83, 18, 37? (a) 3 (b) 83 (c) 18 (d) 37
  30. 30.Which number is the odd one out: 53, 84, 7, 11? (a) 53 (b) 84 (c) 7 (d) 11
  31. 31.Which number is the odd one out: 2, 4, 64, 16? (a) 2 (b) 4 (c) 64 (d) 16
  32. 32.Which number is the odd one out: 80, 50, 32, 8? (a) 80 (b) 50 (c) 32 (d) 8
  33. 33.Which number is the odd one out: 41, 78, 37, 29? (a) 41 (b) 78 (c) 37 (d) 29
  34. 34.Which number is the odd one out: 33, 40, 87, 85? (a) 33 (b) 40 (c) 87 (d) 85
  35. 35.Which number is the odd one out: 79, 38, 83, 47? (a) 79 (b) 38 (c) 83 (d) 47
  36. 36.Which number is the odd one out: 30, 47, 19, 73? (a) 30 (b) 47 (c) 19 (d) 73
  37. 37.Which number is the odd one out: 17, 13, 43, 38? (a) 17 (b) 13 (c) 43 (d) 38
  38. 38.Which number is the odd one out: 3, 12, 17, 83? (a) 3 (b) 12 (c) 17 (d) 83
  39. 39.Which number is the odd one out: 72, 16, 91, 36? (a) 72 (b) 16 (c) 91 (d) 36
  40. 40.Which number is the odd one out: 61, 67, 47, 74? (a) 61 (b) 67 (c) 47 (d) 74

Answer key

  1. 54
  2. 9
  3. 86
  4. 18
  5. 63
  6. 90
  7. 45
  8. 56
  9. 30
  10. 54
  11. 38
  12. 94
  13. 77
  14. 18
  15. 55
  16. 12
  17. 84
  18. 30
  19. 2
  20. 52
  21. 5
  22. 65
  23. 17
  24. 49
  25. 96
  26. 35
  27. 35
  28. 38
  29. 18
  30. 84
  31. 2
  32. 50
  33. 78
  34. 40
  35. 38
  36. 30
  37. 38
  38. 12
  39. 91
  40. 74

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