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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 404 · 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: 41, 35, 43, 59? (a) 41 (b) 35 (c) 43 (d) 59
  2. 2.Which number is the odd one out: 2, 65, 85, 13? (a) 2 (b) 65 (c) 85 (d) 13
  3. 3.Which number is the odd one out: 51, 71, 3, 74? (a) 51 (b) 71 (c) 3 (d) 74
  4. 4.Which number is the odd one out: 90, 42, 27, 45? (a) 90 (b) 42 (c) 27 (d) 45
  5. 5.Which number is the odd one out: 17, 67, 71, 15? (a) 17 (b) 67 (c) 71 (d) 15
  6. 6.Which number is the odd one out: 23, 37, 39, 89? (a) 23 (b) 37 (c) 39 (d) 89
  7. 7.Which number is the odd one out: 32, 96, 8, 78? (a) 32 (b) 96 (c) 8 (d) 78
  8. 8.Which number is the odd one out: 68, 92, 86, 69? (a) 68 (b) 92 (c) 86 (d) 69
  9. 9.Which number is the odd one out: 36, 6, 12, 81? (a) 36 (b) 6 (c) 12 (d) 81
  10. 10.Which number is the odd one out: 89, 57, 12, 67? (a) 89 (b) 57 (c) 12 (d) 67
  11. 11.Which number is the odd one out: 88, 16, 51, 64? (a) 88 (b) 16 (c) 51 (d) 64
  12. 12.Which number is the odd one out: 37, 71, 31, 62? (a) 37 (b) 71 (c) 31 (d) 62
  13. 13.Which number is the odd one out: 90, 79, 11, 97? (a) 90 (b) 79 (c) 11 (d) 97
  14. 14.Which number is the odd one out: 83, 73, 15, 41? (a) 83 (b) 73 (c) 15 (d) 41
  15. 15.Which number is the odd one out: 47, 9, 43, 31? (a) 47 (b) 9 (c) 43 (d) 31
  16. 16.Which number is the odd one out: 71, 97, 82, 37? (a) 71 (b) 97 (c) 82 (d) 37
  17. 17.Which number is the odd one out: 35, 53, 7, 13? (a) 35 (b) 53 (c) 7 (d) 13
  18. 18.Which number is the odd one out: 37, 67, 97, 49? (a) 37 (b) 67 (c) 97 (d) 49
  19. 19.Which number is the odd one out: 17, 11, 72, 59? (a) 17 (b) 11 (c) 72 (d) 59
  20. 20.Which number is the odd one out: 85, 13, 50, 23? (a) 85 (b) 13 (c) 50 (d) 23
  21. 21.Which number is the odd one out: 91, 93, 39, 14? (a) 91 (b) 93 (c) 39 (d) 14
  22. 22.Which number is the odd one out: 17, 6, 3, 73? (a) 17 (b) 6 (c) 3 (d) 73
  23. 23.Which number is the odd one out: 92, 19, 97, 17? (a) 92 (b) 19 (c) 97 (d) 17
  24. 24.Which number is the odd one out: 43, 87, 9, 81? (a) 43 (b) 87 (c) 9 (d) 81
  25. 25.Which number is the odd one out: 3, 83, 89, 57? (a) 3 (b) 83 (c) 89 (d) 57
  26. 26.Which number is the odd one out: 40, 37, 13, 59? (a) 40 (b) 37 (c) 13 (d) 59
  27. 27.Which number is the odd one out: 92, 10, 15, 75? (a) 92 (b) 10 (c) 15 (d) 75
  28. 28.Which number is the odd one out: 67, 79, 71, 95? (a) 67 (b) 79 (c) 71 (d) 95
  29. 29.Which number is the odd one out: 45, 79, 3, 11? (a) 45 (b) 79 (c) 3 (d) 11
  30. 30.Which number is the odd one out: 64, 55, 25, 16? (a) 64 (b) 55 (c) 25 (d) 16
  31. 31.Which number is the odd one out: 17, 97, 13, 6? (a) 17 (b) 97 (c) 13 (d) 6
  32. 32.Which number is the odd one out: 31, 37, 39, 29? (a) 31 (b) 37 (c) 39 (d) 29
  33. 33.Which number is the odd one out: 50, 55, 75, 72? (a) 50 (b) 55 (c) 75 (d) 72
  34. 34.Which number is the odd one out: 47, 2, 36, 89? (a) 47 (b) 2 (c) 36 (d) 89
  35. 35.Which number is the odd one out: 11, 71, 54, 3? (a) 11 (b) 71 (c) 54 (d) 3
  36. 36.Which number is the odd one out: 31, 34, 13, 59? (a) 31 (b) 34 (c) 13 (d) 59
  37. 37.Which number is the odd one out: 31, 83, 28, 71? (a) 31 (b) 83 (c) 28 (d) 71
  38. 38.Which number is the odd one out: 43, 76, 29, 41? (a) 43 (b) 76 (c) 29 (d) 41
  39. 39.Which number is the odd one out: 61, 29, 47, 99? (a) 61 (b) 29 (c) 47 (d) 99
  40. 40.Which number is the odd one out: 11, 92, 8, 32? (a) 11 (b) 92 (c) 8 (d) 32

Answer key

  1. 35
  2. 2
  3. 74
  4. 42
  5. 15
  6. 39
  7. 78
  8. 69
  9. 81
  10. 12
  11. 51
  12. 62
  13. 90
  14. 15
  15. 9
  16. 82
  17. 35
  18. 49
  19. 72
  20. 50
  21. 14
  22. 6
  23. 92
  24. 43
  25. 57
  26. 40
  27. 92
  28. 95
  29. 45
  30. 55
  31. 6
  32. 39
  33. 72
  34. 36
  35. 54
  36. 34
  37. 28
  38. 76
  39. 99
  40. 11

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