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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 649 · 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: 33, 3, 31, 71? (a) 33 (b) 3 (c) 31 (d) 71
  2. 2.Which number is the odd one out: 17, 83, 59, 32? (a) 17 (b) 83 (c) 59 (d) 32
  3. 3.Which number is the odd one out: 71, 23, 41, 92? (a) 71 (b) 23 (c) 41 (d) 92
  4. 4.Which number is the odd one out: 17, 23, 59, 72? (a) 17 (b) 23 (c) 59 (d) 72
  5. 5.Which number is the odd one out: 67, 48, 97, 73? (a) 67 (b) 48 (c) 97 (d) 73
  6. 6.Which number is the odd one out: 53, 8, 29, 37? (a) 53 (b) 8 (c) 29 (d) 37
  7. 7.Which number is the odd one out: 72, 31, 97, 67? (a) 72 (b) 31 (c) 97 (d) 67
  8. 8.Which number is the odd one out: 43, 37, 21, 11? (a) 43 (b) 37 (c) 21 (d) 11
  9. 9.Which number is the odd one out: 96, 41, 72, 18? (a) 96 (b) 41 (c) 72 (d) 18
  10. 10.Which number is the odd one out: 24, 66, 48, 43? (a) 24 (b) 66 (c) 48 (d) 43
  11. 11.Which number is the odd one out: 71, 70, 59, 7? (a) 71 (b) 70 (c) 59 (d) 7
  12. 12.Which number is the odd one out: 29, 83, 37, 25? (a) 29 (b) 83 (c) 37 (d) 25
  13. 13.Which number is the odd one out: 95, 10, 55, 62? (a) 95 (b) 10 (c) 55 (d) 62
  14. 14.Which number is the odd one out: 73, 53, 23, 50? (a) 73 (b) 53 (c) 23 (d) 50
  15. 15.Which number is the odd one out: 79, 17, 34, 61? (a) 79 (b) 17 (c) 34 (d) 61
  16. 16.Which number is the odd one out: 33, 18, 45, 90? (a) 33 (b) 18 (c) 45 (d) 90
  17. 17.Which number is the odd one out: 33, 19, 83, 71? (a) 33 (b) 19 (c) 83 (d) 71
  18. 18.Which number is the odd one out: 43, 91, 89, 37? (a) 43 (b) 91 (c) 89 (d) 37
  19. 19.Which number is the odd one out: 31, 57, 79, 71? (a) 31 (b) 57 (c) 79 (d) 71
  20. 20.Which number is the odd one out: 10, 29, 73, 31? (a) 10 (b) 29 (c) 73 (d) 31
  21. 21.Which number is the odd one out: 41, 37, 88, 13? (a) 41 (b) 37 (c) 88 (d) 13
  22. 22.Which number is the odd one out: 31, 67, 13, 78? (a) 31 (b) 67 (c) 13 (d) 78
  23. 23.Which number is the odd one out: 97, 11, 87, 37? (a) 97 (b) 11 (c) 87 (d) 37
  24. 24.Which number is the odd one out: 41, 94, 23, 2? (a) 41 (b) 94 (c) 23 (d) 2
  25. 25.Which number is the odd one out: 92, 45, 52, 68? (a) 92 (b) 45 (c) 52 (d) 68
  26. 26.Which number is the odd one out: 71, 23, 32, 2? (a) 71 (b) 23 (c) 32 (d) 2
  27. 27.Which number is the odd one out: 13, 56, 67, 41? (a) 13 (b) 56 (c) 67 (d) 41
  28. 28.Which number is the odd one out: 95, 78, 18, 54? (a) 95 (b) 78 (c) 18 (d) 54
  29. 29.Which number is the odd one out: 57, 67, 53, 73? (a) 57 (b) 67 (c) 53 (d) 73
  30. 30.Which number is the odd one out: 2, 5, 20, 71? (a) 2 (b) 5 (c) 20 (d) 71
  31. 31.Which number is the odd one out: 8, 79, 71, 13? (a) 8 (b) 79 (c) 71 (d) 13
  32. 32.Which number is the odd one out: 91, 53, 41, 13? (a) 91 (b) 53 (c) 41 (d) 13
  33. 33.Which number is the odd one out: 78, 73, 59, 3? (a) 78 (b) 73 (c) 59 (d) 3
  34. 34.Which number is the odd one out: 89, 47, 3, 24? (a) 89 (b) 47 (c) 3 (d) 24
  35. 35.Which number is the odd one out: 3, 69, 83, 59? (a) 3 (b) 69 (c) 83 (d) 59
  36. 36.Which number is the odd one out: 42, 84, 5, 60? (a) 42 (b) 84 (c) 5 (d) 60
  37. 37.Which number is the odd one out: 95, 16, 85, 55? (a) 95 (b) 16 (c) 85 (d) 55
  38. 38.Which number is the odd one out: 43, 89, 86, 83? (a) 43 (b) 89 (c) 86 (d) 83
  39. 39.Which number is the odd one out: 47, 30, 37, 39? (a) 47 (b) 30 (c) 37 (d) 39
  40. 40.Which number is the odd one out: 18, 54, 98, 6? (a) 18 (b) 54 (c) 98 (d) 6

Answer key

  1. 33
  2. 32
  3. 92
  4. 72
  5. 48
  6. 8
  7. 72
  8. 21
  9. 41
  10. 43
  11. 70
  12. 25
  13. 62
  14. 50
  15. 34
  16. 33
  17. 33
  18. 91
  19. 57
  20. 10
  21. 88
  22. 78
  23. 87
  24. 94
  25. 45
  26. 32
  27. 56
  28. 95
  29. 57
  30. 20
  31. 8
  32. 91
  33. 78
  34. 24
  35. 69
  36. 5
  37. 16
  38. 86
  39. 30
  40. 98

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