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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 887 · 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, 17, 11, 23? (a) 20 (b) 17 (c) 11 (d) 23
  2. 2.Which number is the odd one out: 43, 73, 40, 61? (a) 43 (b) 73 (c) 40 (d) 61
  3. 3.Which number is the odd one out: 43, 30, 61, 13? (a) 43 (b) 30 (c) 61 (d) 13
  4. 4.Which number is the odd one out: 20, 66, 68, 60? (a) 20 (b) 66 (c) 68 (d) 60
  5. 5.Which number is the odd one out: 86, 41, 71, 67? (a) 86 (b) 41 (c) 71 (d) 67
  6. 6.Which number is the odd one out: 31, 29, 5, 35? (a) 31 (b) 29 (c) 5 (d) 35
  7. 7.Which number is the odd one out: 6, 41, 2, 73? (a) 6 (b) 41 (c) 2 (d) 73
  8. 8.Which number is the odd one out: 19, 41, 56, 7? (a) 19 (b) 41 (c) 56 (d) 7
  9. 9.Which number is the odd one out: 64, 89, 29, 59? (a) 64 (b) 89 (c) 29 (d) 59
  10. 10.Which number is the odd one out: 48, 21, 77, 98? (a) 48 (b) 21 (c) 77 (d) 98
  11. 11.Which number is the odd one out: 3, 73, 19, 36? (a) 3 (b) 73 (c) 19 (d) 36
  12. 12.Which number is the odd one out: 47, 61, 64, 59? (a) 47 (b) 61 (c) 64 (d) 59
  13. 13.Which number is the odd one out: 9, 81, 49, 70? (a) 9 (b) 81 (c) 49 (d) 70
  14. 14.Which number is the odd one out: 67, 72, 83, 23? (a) 67 (b) 72 (c) 83 (d) 23
  15. 15.Which number is the odd one out: 6, 31, 83, 19? (a) 6 (b) 31 (c) 83 (d) 19
  16. 16.Which number is the odd one out: 60, 67, 3, 83? (a) 60 (b) 67 (c) 3 (d) 83
  17. 17.Which number is the odd one out: 61, 14, 73, 11? (a) 61 (b) 14 (c) 73 (d) 11
  18. 18.Which number is the odd one out: 29, 75, 79, 19? (a) 29 (b) 75 (c) 79 (d) 19
  19. 19.Which number is the odd one out: 5, 70, 14, 7? (a) 5 (b) 70 (c) 14 (d) 7
  20. 20.Which number is the odd one out: 88, 16, 25, 32? (a) 88 (b) 16 (c) 25 (d) 32
  21. 21.Which number is the odd one out: 95, 13, 53, 61? (a) 95 (b) 13 (c) 53 (d) 61
  22. 22.Which number is the odd one out: 17, 73, 19, 66? (a) 17 (b) 73 (c) 19 (d) 66
  23. 23.Which number is the odd one out: 88, 80, 33, 20? (a) 88 (b) 80 (c) 33 (d) 20
  24. 24.Which number is the odd one out: 47, 97, 14, 73? (a) 47 (b) 97 (c) 14 (d) 73
  25. 25.Which number is the odd one out: 20, 83, 65, 17? (a) 20 (b) 83 (c) 65 (d) 17
  26. 26.Which number is the odd one out: 19, 67, 2, 66? (a) 19 (b) 67 (c) 2 (d) 66
  27. 27.Which number is the odd one out: 83, 11, 3, 93? (a) 83 (b) 11 (c) 3 (d) 93
  28. 28.Which number is the odd one out: 37, 19, 76, 41? (a) 37 (b) 19 (c) 76 (d) 41
  29. 29.Which number is the odd one out: 45, 16, 8, 4? (a) 45 (b) 16 (c) 8 (d) 4
  30. 30.Which number is the odd one out: 48, 12, 32, 50? (a) 48 (b) 12 (c) 32 (d) 50
  31. 31.Which number is the odd one out: 37, 67, 90, 89? (a) 37 (b) 67 (c) 90 (d) 89
  32. 32.Which number is the odd one out: 24, 55, 12, 80? (a) 24 (b) 55 (c) 12 (d) 80
  33. 33.Which number is the odd one out: 47, 56, 11, 59? (a) 47 (b) 56 (c) 11 (d) 59
  34. 34.Which number is the odd one out: 48, 69, 67, 96? (a) 48 (b) 69 (c) 67 (d) 96
  35. 35.Which number is the odd one out: 7, 14, 53, 79? (a) 7 (b) 14 (c) 53 (d) 79
  36. 36.Which number is the odd one out: 77, 8, 48, 96? (a) 77 (b) 8 (c) 48 (d) 96
  37. 37.Which number is the odd one out: 11, 29, 41, 56? (a) 11 (b) 29 (c) 41 (d) 56
  38. 38.Which number is the odd one out: 55, 48, 60, 24? (a) 55 (b) 48 (c) 60 (d) 24
  39. 39.Which number is the odd one out: 59, 29, 39, 79? (a) 59 (b) 29 (c) 39 (d) 79
  40. 40.Which number is the odd one out: 19, 29, 13, 82? (a) 19 (b) 29 (c) 13 (d) 82

Answer key

  1. 20
  2. 40
  3. 30
  4. 66
  5. 86
  6. 35
  7. 6
  8. 56
  9. 64
  10. 48
  11. 36
  12. 64
  13. 70
  14. 72
  15. 6
  16. 60
  17. 14
  18. 75
  19. 5
  20. 25
  21. 95
  22. 66
  23. 33
  24. 14
  25. 20
  26. 66
  27. 93
  28. 76
  29. 45
  30. 50
  31. 90
  32. 55
  33. 56
  34. 67
  35. 14
  36. 77
  37. 56
  38. 55
  39. 39
  40. 82

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