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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 629 · 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: 29, 67, 41, 58? (a) 29 (b) 67 (c) 41 (d) 58
  2. 2.Which number is the odd one out: 18, 33, 89, 13? (a) 18 (b) 33 (c) 89 (d) 13
  3. 3.Which number is the odd one out: 23, 46, 13, 29? (a) 23 (b) 46 (c) 13 (d) 29
  4. 4.Which number is the odd one out: 49, 19, 23, 53? (a) 49 (b) 19 (c) 23 (d) 53
  5. 5.Which number is the odd one out: 42, 2, 23, 59? (a) 42 (b) 2 (c) 23 (d) 59
  6. 6.Which number is the odd one out: 58, 98, 77, 94? (a) 58 (b) 98 (c) 77 (d) 94
  7. 7.Which number is the odd one out: 41, 31, 13, 84? (a) 41 (b) 31 (c) 13 (d) 84
  8. 8.Which number is the odd one out: 59, 98, 19, 31? (a) 59 (b) 98 (c) 19 (d) 31
  9. 9.Which number is the odd one out: 88, 32, 8, 26? (a) 88 (b) 32 (c) 8 (d) 26
  10. 10.Which number is the odd one out: 17, 43, 72, 67? (a) 17 (b) 43 (c) 72 (d) 67
  11. 11.Which number is the odd one out: 11, 15, 75, 5? (a) 11 (b) 15 (c) 75 (d) 5
  12. 12.Which number is the odd one out: 55, 95, 4, 65? (a) 55 (b) 95 (c) 4 (d) 65
  13. 13.Which number is the odd one out: 9, 81, 18, 30? (a) 9 (b) 81 (c) 18 (d) 30
  14. 14.Which number is the odd one out: 31, 83, 52, 71? (a) 31 (b) 83 (c) 52 (d) 71
  15. 15.Which number is the odd one out: 71, 11, 90, 59? (a) 71 (b) 11 (c) 90 (d) 59
  16. 16.Which number is the odd one out: 69, 53, 37, 11? (a) 69 (b) 53 (c) 37 (d) 11
  17. 17.Which number is the odd one out: 11, 74, 13, 23? (a) 11 (b) 74 (c) 13 (d) 23
  18. 18.Which number is the odd one out: 59, 40, 17, 53? (a) 59 (b) 40 (c) 17 (d) 53
  19. 19.Which number is the odd one out: 97, 89, 25, 5? (a) 97 (b) 89 (c) 25 (d) 5
  20. 20.Which number is the odd one out: 73, 68, 47, 41? (a) 73 (b) 68 (c) 47 (d) 41
  21. 21.Which number is the odd one out: 29, 17, 91, 42? (a) 29 (b) 17 (c) 91 (d) 42
  22. 22.Which number is the odd one out: 59, 14, 61, 79? (a) 59 (b) 14 (c) 61 (d) 79
  23. 23.Which number is the odd one out: 23, 52, 31, 47? (a) 23 (b) 52 (c) 31 (d) 47
  24. 24.Which number is the odd one out: 53, 13, 2, 68? (a) 53 (b) 13 (c) 2 (d) 68
  25. 25.Which number is the odd one out: 53, 43, 59, 44? (a) 53 (b) 43 (c) 59 (d) 44
  26. 26.Which number is the odd one out: 89, 37, 90, 41? (a) 89 (b) 37 (c) 90 (d) 41
  27. 27.Which number is the odd one out: 41, 47, 83, 90? (a) 41 (b) 47 (c) 83 (d) 90
  28. 28.Which number is the odd one out: 80, 40, 71, 8? (a) 80 (b) 40 (c) 71 (d) 8
  29. 29.Which number is the odd one out: 15, 23, 71, 79? (a) 15 (b) 23 (c) 71 (d) 79
  30. 30.Which number is the odd one out: 78, 30, 55, 66? (a) 78 (b) 30 (c) 55 (d) 66
  31. 31.Which number is the odd one out: 73, 11, 44, 83? (a) 73 (b) 11 (c) 44 (d) 83
  32. 32.Which number is the odd one out: 31, 11, 33, 79? (a) 31 (b) 11 (c) 33 (d) 79
  33. 33.Which number is the odd one out: 71, 64, 47, 23? (a) 71 (b) 64 (c) 47 (d) 23
  34. 34.Which number is the odd one out: 68, 12, 55, 60? (a) 68 (b) 12 (c) 55 (d) 60
  35. 35.Which number is the odd one out: 12, 41, 71, 37? (a) 12 (b) 41 (c) 71 (d) 37
  36. 36.Which number is the odd one out: 37, 43, 10, 31? (a) 37 (b) 43 (c) 10 (d) 31
  37. 37.Which number is the odd one out: 37, 61, 31, 60? (a) 37 (b) 61 (c) 31 (d) 60
  38. 38.Which number is the odd one out: 73, 47, 53, 40? (a) 73 (b) 47 (c) 53 (d) 40
  39. 39.Which number is the odd one out: 67, 24, 2, 31? (a) 67 (b) 24 (c) 2 (d) 31
  40. 40.Which number is the odd one out: 79, 2, 72, 3? (a) 79 (b) 2 (c) 72 (d) 3

Answer key

  1. 58
  2. 18
  3. 46
  4. 49
  5. 42
  6. 77
  7. 84
  8. 98
  9. 26
  10. 72
  11. 11
  12. 4
  13. 30
  14. 52
  15. 90
  16. 69
  17. 74
  18. 40
  19. 25
  20. 68
  21. 42
  22. 14
  23. 52
  24. 68
  25. 44
  26. 90
  27. 90
  28. 71
  29. 15
  30. 55
  31. 44
  32. 33
  33. 64
  34. 55
  35. 12
  36. 10
  37. 60
  38. 40
  39. 24
  40. 72

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