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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 423 · 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: 5, 67, 2, 40? (a) 5 (b) 67 (c) 2 (d) 40
  2. 2.Which number is the odd one out: 73, 89, 5, 25? (a) 73 (b) 89 (c) 5 (d) 25
  3. 3.Which number is the odd one out: 11, 59, 47, 12? (a) 11 (b) 59 (c) 47 (d) 12
  4. 4.Which number is the odd one out: 41, 13, 79, 24? (a) 41 (b) 13 (c) 79 (d) 24
  5. 5.Which number is the odd one out: 6, 2, 41, 31? (a) 6 (b) 2 (c) 41 (d) 31
  6. 6.Which number is the odd one out: 30, 29, 71, 97? (a) 30 (b) 29 (c) 71 (d) 97
  7. 7.Which number is the odd one out: 4, 16, 34, 64? (a) 4 (b) 16 (c) 34 (d) 64
  8. 8.Which number is the odd one out: 89, 17, 83, 4? (a) 89 (b) 17 (c) 83 (d) 4
  9. 9.Which number is the odd one out: 59, 67, 97, 38? (a) 59 (b) 67 (c) 97 (d) 38
  10. 10.Which number is the odd one out: 76, 57, 92, 22? (a) 76 (b) 57 (c) 92 (d) 22
  11. 11.Which number is the odd one out: 23, 28, 71, 59? (a) 23 (b) 28 (c) 71 (d) 59
  12. 12.Which number is the odd one out: 61, 22, 37, 23? (a) 61 (b) 22 (c) 37 (d) 23
  13. 13.Which number is the odd one out: 16, 8, 64, 89? (a) 16 (b) 8 (c) 64 (d) 89
  14. 14.Which number is the odd one out: 5, 37, 61, 35? (a) 5 (b) 37 (c) 61 (d) 35
  15. 15.Which number is the odd one out: 71, 59, 62, 89? (a) 71 (b) 59 (c) 62 (d) 89
  16. 16.Which number is the odd one out: 16, 64, 73, 88? (a) 16 (b) 64 (c) 73 (d) 88
  17. 17.Which number is the odd one out: 24, 48, 96, 11? (a) 24 (b) 48 (c) 96 (d) 11
  18. 18.Which number is the odd one out: 23, 29, 72, 43? (a) 23 (b) 29 (c) 72 (d) 43
  19. 19.Which number is the odd one out: 88, 80, 11, 40? (a) 88 (b) 80 (c) 11 (d) 40
  20. 20.Which number is the odd one out: 43, 72, 13, 11? (a) 43 (b) 72 (c) 13 (d) 11
  21. 21.Which number is the odd one out: 79, 59, 17, 90? (a) 79 (b) 59 (c) 17 (d) 90
  22. 22.Which number is the odd one out: 96, 24, 48, 82? (a) 96 (b) 24 (c) 48 (d) 82
  23. 23.Which number is the odd one out: 72, 18, 24, 85? (a) 72 (b) 18 (c) 24 (d) 85
  24. 24.Which number is the odd one out: 75, 8, 44, 88? (a) 75 (b) 8 (c) 44 (d) 88
  25. 25.Which number is the odd one out: 83, 43, 5, 60? (a) 83 (b) 43 (c) 5 (d) 60
  26. 26.Which number is the odd one out: 3, 71, 21, 41? (a) 3 (b) 71 (c) 21 (d) 41
  27. 27.Which number is the odd one out: 83, 81, 23, 67? (a) 83 (b) 81 (c) 23 (d) 67
  28. 28.Which number is the odd one out: 43, 95, 13, 97? (a) 43 (b) 95 (c) 13 (d) 97
  29. 29.Which number is the odd one out: 94, 47, 71, 59? (a) 94 (b) 47 (c) 71 (d) 59
  30. 30.Which number is the odd one out: 41, 64, 59, 43? (a) 41 (b) 64 (c) 59 (d) 43
  31. 31.Which number is the odd one out: 30, 11, 47, 23? (a) 30 (b) 11 (c) 47 (d) 23
  32. 32.Which number is the odd one out: 24, 48, 96, 86? (a) 24 (b) 48 (c) 96 (d) 86
  33. 33.Which number is the odd one out: 53, 58, 23, 43? (a) 53 (b) 58 (c) 23 (d) 43
  34. 34.Which number is the odd one out: 53, 31, 75, 43? (a) 53 (b) 31 (c) 75 (d) 43
  35. 35.Which number is the odd one out: 54, 66, 37, 18? (a) 54 (b) 66 (c) 37 (d) 18
  36. 36.Which number is the odd one out: 18, 27, 55, 54? (a) 18 (b) 27 (c) 55 (d) 54
  37. 37.Which number is the odd one out: 55, 65, 2, 50? (a) 55 (b) 65 (c) 2 (d) 50
  38. 38.Which number is the odd one out: 77, 71, 19, 31? (a) 77 (b) 71 (c) 19 (d) 31
  39. 39.Which number is the odd one out: 49, 35, 81, 9? (a) 49 (b) 35 (c) 81 (d) 9
  40. 40.Which number is the odd one out: 61, 94, 59, 41? (a) 61 (b) 94 (c) 59 (d) 41

Answer key

  1. 40
  2. 25
  3. 12
  4. 24
  5. 6
  6. 30
  7. 34
  8. 4
  9. 38
  10. 57
  11. 28
  12. 22
  13. 89
  14. 35
  15. 62
  16. 73
  17. 11
  18. 72
  19. 11
  20. 72
  21. 90
  22. 82
  23. 85
  24. 75
  25. 60
  26. 21
  27. 81
  28. 95
  29. 94
  30. 64
  31. 30
  32. 86
  33. 58
  34. 75
  35. 37
  36. 55
  37. 2
  38. 77
  39. 35
  40. 94

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