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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 706 · 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: 23, 92, 71, 61? (a) 23 (b) 92 (c) 71 (d) 61
  2. 2.Which number is the odd one out: 31, 69, 97, 18? (a) 31 (b) 69 (c) 97 (d) 18
  3. 3.Which number is the odd one out: 37, 15, 73, 83? (a) 37 (b) 15 (c) 73 (d) 83
  4. 4.Which number is the odd one out: 48, 5, 66, 96? (a) 48 (b) 5 (c) 66 (d) 96
  5. 5.Which number is the odd one out: 10, 55, 68, 95? (a) 10 (b) 55 (c) 68 (d) 95
  6. 6.Which number is the odd one out: 55, 73, 71, 23? (a) 55 (b) 73 (c) 71 (d) 23
  7. 7.Which number is the odd one out: 68, 76, 29, 92? (a) 68 (b) 76 (c) 29 (d) 92
  8. 8.Which number is the odd one out: 85, 73, 59, 90? (a) 85 (b) 73 (c) 59 (d) 90
  9. 9.Which number is the odd one out: 96, 23, 71, 37? (a) 96 (b) 23 (c) 71 (d) 37
  10. 10.Which number is the odd one out: 73, 89, 16, 17? (a) 73 (b) 89 (c) 16 (d) 17
  11. 11.Which number is the odd one out: 79, 73, 97, 87? (a) 79 (b) 73 (c) 97 (d) 87
  12. 12.Which number is the odd one out: 55, 96, 75, 65? (a) 55 (b) 96 (c) 75 (d) 65
  13. 13.Which number is the odd one out: 9, 99, 81, 93? (a) 9 (b) 99 (c) 81 (d) 93
  14. 14.Which number is the odd one out: 61, 42, 7, 83? (a) 61 (b) 42 (c) 7 (d) 83
  15. 15.Which number is the odd one out: 47, 59, 13, 12? (a) 47 (b) 59 (c) 13 (d) 12
  16. 16.Which number is the odd one out: 2, 41, 76, 37? (a) 2 (b) 41 (c) 76 (d) 37
  17. 17.Which number is the odd one out: 64, 8, 32, 49? (a) 64 (b) 8 (c) 32 (d) 49
  18. 18.Which number is the odd one out: 24, 56, 66, 6? (a) 24 (b) 56 (c) 66 (d) 6
  19. 19.Which number is the odd one out: 16, 59, 4, 64? (a) 16 (b) 59 (c) 4 (d) 64
  20. 20.Which number is the odd one out: 43, 71, 89, 81? (a) 43 (b) 71 (c) 89 (d) 81
  21. 21.Which number is the odd one out: 24, 83, 23, 61? (a) 24 (b) 83 (c) 23 (d) 61
  22. 22.Which number is the odd one out: 9, 99, 73, 81? (a) 9 (b) 99 (c) 73 (d) 81
  23. 23.Which number is the odd one out: 83, 53, 47, 39? (a) 83 (b) 53 (c) 47 (d) 39
  24. 24.Which number is the odd one out: 47, 67, 79, 20? (a) 47 (b) 67 (c) 79 (d) 20
  25. 25.Which number is the odd one out: 41, 23, 83, 98? (a) 41 (b) 23 (c) 83 (d) 98
  26. 26.Which number is the odd one out: 11, 43, 50, 73? (a) 11 (b) 43 (c) 50 (d) 73
  27. 27.Which number is the odd one out: 17, 23, 71, 78? (a) 17 (b) 23 (c) 71 (d) 78
  28. 28.Which number is the odd one out: 96, 90, 45, 27? (a) 96 (b) 90 (c) 45 (d) 27
  29. 29.Which number is the odd one out: 19, 91, 67, 59? (a) 19 (b) 91 (c) 67 (d) 59
  30. 30.Which number is the odd one out: 13, 59, 57, 41? (a) 13 (b) 59 (c) 57 (d) 41
  31. 31.Which number is the odd one out: 2, 17, 41, 14? (a) 2 (b) 17 (c) 41 (d) 14
  32. 32.Which number is the odd one out: 4, 64, 16, 37? (a) 4 (b) 64 (c) 16 (d) 37
  33. 33.Which number is the odd one out: 61, 53, 11, 49? (a) 61 (b) 53 (c) 11 (d) 49
  34. 34.Which number is the odd one out: 43, 71, 90, 41? (a) 43 (b) 71 (c) 90 (d) 41
  35. 35.Which number is the odd one out: 13, 11, 41, 44? (a) 13 (b) 11 (c) 41 (d) 44
  36. 36.Which number is the odd one out: 96, 71, 2, 17? (a) 96 (b) 71 (c) 2 (d) 17
  37. 37.Which number is the odd one out: 31, 52, 79, 59? (a) 31 (b) 52 (c) 79 (d) 59
  38. 38.Which number is the odd one out: 79, 19, 3, 96? (a) 79 (b) 19 (c) 3 (d) 96
  39. 39.Which number is the odd one out: 13, 91, 89, 11? (a) 13 (b) 91 (c) 89 (d) 11
  40. 40.Which number is the odd one out: 51, 87, 80, 57? (a) 51 (b) 87 (c) 80 (d) 57

Answer key

  1. 92
  2. 18
  3. 15
  4. 5
  5. 68
  6. 55
  7. 29
  8. 90
  9. 96
  10. 16
  11. 87
  12. 96
  13. 93
  14. 42
  15. 12
  16. 76
  17. 49
  18. 56
  19. 59
  20. 81
  21. 24
  22. 73
  23. 39
  24. 20
  25. 98
  26. 50
  27. 78
  28. 96
  29. 91
  30. 57
  31. 14
  32. 37
  33. 49
  34. 90
  35. 44
  36. 96
  37. 52
  38. 96
  39. 91
  40. 80

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