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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 484 · 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: 71, 89, 11, 9? (a) 71 (b) 89 (c) 11 (d) 9
  2. 2.Which number is the odd one out: 28, 84, 98, 30? (a) 28 (b) 84 (c) 98 (d) 30
  3. 3.Which number is the odd one out: 31, 17, 45, 11? (a) 31 (b) 17 (c) 45 (d) 11
  4. 4.Which number is the odd one out: 8, 32, 26, 88? (a) 8 (b) 32 (c) 26 (d) 88
  5. 5.Which number is the odd one out: 3, 73, 59, 78? (a) 3 (b) 73 (c) 59 (d) 78
  6. 6.Which number is the odd one out: 31, 83, 28, 73? (a) 31 (b) 83 (c) 28 (d) 73
  7. 7.Which number is the odd one out: 11, 61, 8, 29? (a) 11 (b) 61 (c) 8 (d) 29
  8. 8.Which number is the odd one out: 47, 11, 17, 65? (a) 47 (b) 11 (c) 17 (d) 65
  9. 9.Which number is the odd one out: 48, 85, 97, 5? (a) 48 (b) 85 (c) 97 (d) 5
  10. 10.Which number is the odd one out: 83, 29, 61, 98? (a) 83 (b) 29 (c) 61 (d) 98
  11. 11.Which number is the odd one out: 98, 70, 14, 95? (a) 98 (b) 70 (c) 14 (d) 95
  12. 12.Which number is the odd one out: 18, 66, 8, 54? (a) 18 (b) 66 (c) 8 (d) 54
  13. 13.Which number is the odd one out: 19, 90, 43, 89? (a) 19 (b) 90 (c) 43 (d) 89
  14. 14.Which number is the odd one out: 37, 53, 24, 39? (a) 37 (b) 53 (c) 24 (d) 39
  15. 15.Which number is the odd one out: 96, 61, 17, 97? (a) 96 (b) 61 (c) 17 (d) 97
  16. 16.Which number is the odd one out: 11, 17, 2, 80? (a) 11 (b) 17 (c) 2 (d) 80
  17. 17.Which number is the odd one out: 36, 24, 96, 72? (a) 36 (b) 24 (c) 96 (d) 72
  18. 18.Which number is the odd one out: 13, 41, 27, 97? (a) 13 (b) 41 (c) 27 (d) 97
  19. 19.Which number is the odd one out: 3, 81, 13, 61? (a) 3 (b) 81 (c) 13 (d) 61
  20. 20.Which number is the odd one out: 61, 65, 11, 83? (a) 61 (b) 65 (c) 11 (d) 83
  21. 21.Which number is the odd one out: 2, 73, 8, 41? (a) 2 (b) 73 (c) 8 (d) 41
  22. 22.Which number is the odd one out: 34, 31, 79, 47? (a) 34 (b) 31 (c) 79 (d) 47
  23. 23.Which number is the odd one out: 16, 63, 64, 81? (a) 16 (b) 63 (c) 64 (d) 81
  24. 24.Which number is the odd one out: 85, 67, 73, 19? (a) 85 (b) 67 (c) 73 (d) 19
  25. 25.Which number is the odd one out: 33, 79, 57, 87? (a) 33 (b) 79 (c) 57 (d) 87
  26. 26.Which number is the odd one out: 71, 13, 42, 43? (a) 71 (b) 13 (c) 42 (d) 43
  27. 27.Which number is the odd one out: 43, 19, 3, 36? (a) 43 (b) 19 (c) 3 (d) 36
  28. 28.Which number is the odd one out: 97, 51, 41, 3? (a) 97 (b) 51 (c) 41 (d) 3
  29. 29.Which number is the odd one out: 13, 8, 23, 67? (a) 13 (b) 8 (c) 23 (d) 67
  30. 30.Which number is the odd one out: 19, 31, 90, 13? (a) 19 (b) 31 (c) 90 (d) 13
  31. 31.Which number is the odd one out: 43, 4, 71, 47? (a) 43 (b) 4 (c) 71 (d) 47
  32. 32.Which number is the odd one out: 97, 37, 82, 67? (a) 97 (b) 37 (c) 82 (d) 67
  33. 33.Which number is the odd one out: 17, 94, 41, 2? (a) 17 (b) 94 (c) 41 (d) 2
  34. 34.Which number is the odd one out: 84, 95, 55, 20? (a) 84 (b) 95 (c) 55 (d) 20
  35. 35.Which number is the odd one out: 63, 32, 56, 8? (a) 63 (b) 32 (c) 56 (d) 8
  36. 36.Which number is the odd one out: 83, 11, 5, 15? (a) 83 (b) 11 (c) 5 (d) 15
  37. 37.Which number is the odd one out: 37, 79, 38, 53? (a) 37 (b) 79 (c) 38 (d) 53
  38. 38.Which number is the odd one out: 35, 80, 8, 32? (a) 35 (b) 80 (c) 8 (d) 32
  39. 39.Which number is the odd one out: 16, 88, 64, 27? (a) 16 (b) 88 (c) 64 (d) 27
  40. 40.Which number is the odd one out: 43, 67, 2, 72? (a) 43 (b) 67 (c) 2 (d) 72

Answer key

  1. 9
  2. 30
  3. 45
  4. 26
  5. 78
  6. 28
  7. 8
  8. 65
  9. 48
  10. 98
  11. 95
  12. 8
  13. 90
  14. 24
  15. 96
  16. 80
  17. 36
  18. 27
  19. 81
  20. 65
  21. 8
  22. 34
  23. 63
  24. 85
  25. 79
  26. 42
  27. 36
  28. 51
  29. 8
  30. 90
  31. 4
  32. 82
  33. 94
  34. 84
  35. 63
  36. 15
  37. 38
  38. 35
  39. 27
  40. 72

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