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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 535 · 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: 79, 59, 67, 40? (a) 79 (b) 59 (c) 67 (d) 40
  2. 2.Which number is the odd one out: 10, 84, 65, 35? (a) 10 (b) 84 (c) 65 (d) 35
  3. 3.Which number is the odd one out: 65, 88, 10, 55? (a) 65 (b) 88 (c) 10 (d) 55
  4. 4.Which number is the odd one out: 67, 17, 19, 82? (a) 67 (b) 17 (c) 19 (d) 82
  5. 5.Which number is the odd one out: 67, 11, 24, 19? (a) 67 (b) 11 (c) 24 (d) 19
  6. 6.Which number is the odd one out: 23, 83, 6, 13? (a) 23 (b) 83 (c) 6 (d) 13
  7. 7.Which number is the odd one out: 8, 79, 97, 59? (a) 8 (b) 79 (c) 97 (d) 59
  8. 8.Which number is the odd one out: 53, 21, 61, 3? (a) 53 (b) 21 (c) 61 (d) 3
  9. 9.Which number is the odd one out: 59, 97, 31, 22? (a) 59 (b) 97 (c) 31 (d) 22
  10. 10.Which number is the odd one out: 48, 53, 24, 8? (a) 48 (b) 53 (c) 24 (d) 8
  11. 11.Which number is the odd one out: 59, 3, 72, 67? (a) 59 (b) 3 (c) 72 (d) 67
  12. 12.Which number is the odd one out: 71, 79, 23, 94? (a) 71 (b) 79 (c) 23 (d) 94
  13. 13.Which number is the odd one out: 11, 89, 90, 61? (a) 11 (b) 89 (c) 90 (d) 61
  14. 14.Which number is the odd one out: 72, 48, 46, 18? (a) 72 (b) 48 (c) 46 (d) 18
  15. 15.Which number is the odd one out: 2, 97, 88, 41? (a) 2 (b) 97 (c) 88 (d) 41
  16. 16.Which number is the odd one out: 29, 2, 78, 13? (a) 29 (b) 2 (c) 78 (d) 13
  17. 17.Which number is the odd one out: 37, 21, 53, 7? (a) 37 (b) 21 (c) 53 (d) 7
  18. 18.Which number is the odd one out: 98, 77, 40, 91? (a) 98 (b) 77 (c) 40 (d) 91
  19. 19.Which number is the odd one out: 19, 24, 48, 12? (a) 19 (b) 24 (c) 48 (d) 12
  20. 20.Which number is the odd one out: 27, 99, 66, 54? (a) 27 (b) 99 (c) 66 (d) 54
  21. 21.Which number is the odd one out: 89, 29, 54, 19? (a) 89 (b) 29 (c) 54 (d) 19
  22. 22.Which number is the odd one out: 71, 47, 66, 89? (a) 71 (b) 47 (c) 66 (d) 89
  23. 23.Which number is the odd one out: 82, 67, 17, 61? (a) 82 (b) 67 (c) 17 (d) 61
  24. 24.Which number is the odd one out: 19, 13, 82, 59? (a) 19 (b) 13 (c) 82 (d) 59
  25. 25.Which number is the odd one out: 20, 68, 75, 58? (a) 20 (b) 68 (c) 75 (d) 58
  26. 26.Which number is the odd one out: 53, 81, 13, 89? (a) 53 (b) 81 (c) 13 (d) 89
  27. 27.Which number is the odd one out: 37, 4, 19, 43? (a) 37 (b) 4 (c) 19 (d) 43
  28. 28.Which number is the odd one out: 88, 8, 85, 20? (a) 88 (b) 8 (c) 85 (d) 20
  29. 29.Which number is the odd one out: 79, 24, 11, 19? (a) 79 (b) 24 (c) 11 (d) 19
  30. 30.Which number is the odd one out: 59, 54, 13, 41? (a) 59 (b) 54 (c) 13 (d) 41
  31. 31.Which number is the odd one out: 71, 40, 47, 29? (a) 71 (b) 40 (c) 47 (d) 29
  32. 32.Which number is the odd one out: 45, 41, 71, 19? (a) 45 (b) 41 (c) 71 (d) 19
  33. 33.Which number is the odd one out: 29, 91, 59, 73? (a) 29 (b) 91 (c) 59 (d) 73
  34. 34.Which number is the odd one out: 41, 90, 53, 23? (a) 41 (b) 90 (c) 53 (d) 23
  35. 35.Which number is the odd one out: 90, 80, 8, 88? (a) 90 (b) 80 (c) 8 (d) 88
  36. 36.Which number is the odd one out: 29, 59, 74, 37? (a) 29 (b) 59 (c) 74 (d) 37
  37. 37.Which number is the odd one out: 80, 90, 12, 8? (a) 80 (b) 90 (c) 12 (d) 8
  38. 38.Which number is the odd one out: 73, 43, 31, 44? (a) 73 (b) 43 (c) 31 (d) 44
  39. 39.Which number is the odd one out: 10, 96, 75, 55? (a) 10 (b) 96 (c) 75 (d) 55
  40. 40.Which number is the odd one out: 89, 17, 97, 34? (a) 89 (b) 17 (c) 97 (d) 34

Answer key

  1. 40
  2. 84
  3. 88
  4. 82
  5. 24
  6. 6
  7. 8
  8. 21
  9. 22
  10. 53
  11. 72
  12. 94
  13. 90
  14. 46
  15. 88
  16. 78
  17. 21
  18. 40
  19. 19
  20. 66
  21. 54
  22. 66
  23. 82
  24. 82
  25. 75
  26. 81
  27. 4
  28. 85
  29. 24
  30. 54
  31. 40
  32. 45
  33. 91
  34. 90
  35. 90
  36. 74
  37. 90
  38. 44
  39. 96
  40. 34

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