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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 693 · 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: 27, 6, 37, 18? (a) 27 (b) 6 (c) 37 (d) 18
  2. 2.Which number is the odd one out: 23, 19, 67, 16? (a) 23 (b) 19 (c) 67 (d) 16
  3. 3.Which number is the odd one out: 93, 16, 3, 61? (a) 93 (b) 16 (c) 3 (d) 61
  4. 4.Which number is the odd one out: 54, 8, 88, 96? (a) 54 (b) 8 (c) 88 (d) 96
  5. 5.Which number is the odd one out: 96, 68, 65, 48? (a) 96 (b) 68 (c) 65 (d) 48
  6. 6.Which number is the odd one out: 35, 7, 79, 43? (a) 35 (b) 7 (c) 79 (d) 43
  7. 7.Which number is the odd one out: 66, 3, 53, 89? (a) 66 (b) 3 (c) 53 (d) 89
  8. 8.Which number is the odd one out: 67, 71, 39, 37? (a) 67 (b) 71 (c) 39 (d) 37
  9. 9.Which number is the odd one out: 72, 48, 18, 75? (a) 72 (b) 48 (c) 18 (d) 75
  10. 10.Which number is the odd one out: 48, 40, 78, 35? (a) 48 (b) 40 (c) 78 (d) 35
  11. 11.Which number is the odd one out: 24, 66, 8, 83? (a) 24 (b) 66 (c) 8 (d) 83
  12. 12.Which number is the odd one out: 70, 37, 35, 98? (a) 70 (b) 37 (c) 35 (d) 98
  13. 13.Which number is the odd one out: 48, 9, 96, 54? (a) 48 (b) 9 (c) 96 (d) 54
  14. 14.Which number is the odd one out: 59, 61, 70, 41? (a) 59 (b) 61 (c) 70 (d) 41
  15. 15.Which number is the odd one out: 49, 64, 21, 16? (a) 49 (b) 64 (c) 21 (d) 16
  16. 16.Which number is the odd one out: 28, 29, 11, 7? (a) 28 (b) 29 (c) 11 (d) 7
  17. 17.Which number is the odd one out: 47, 93, 31, 19? (a) 47 (b) 93 (c) 31 (d) 19
  18. 18.Which number is the odd one out: 77, 44, 76, 98? (a) 77 (b) 44 (c) 76 (d) 98
  19. 19.Which number is the odd one out: 24, 23, 67, 13? (a) 24 (b) 23 (c) 67 (d) 13
  20. 20.Which number is the odd one out: 31, 13, 71, 15? (a) 31 (b) 13 (c) 71 (d) 15
  21. 21.Which number is the odd one out: 71, 2, 19, 60? (a) 71 (b) 2 (c) 19 (d) 60
  22. 22.Which number is the odd one out: 37, 3, 53, 90? (a) 37 (b) 3 (c) 53 (d) 90
  23. 23.Which number is the odd one out: 43, 23, 13, 9? (a) 43 (b) 23 (c) 13 (d) 9
  24. 24.Which number is the odd one out: 17, 11, 80, 67? (a) 17 (b) 11 (c) 80 (d) 67
  25. 25.Which number is the odd one out: 82, 91, 62, 58? (a) 82 (b) 91 (c) 62 (d) 58
  26. 26.Which number is the odd one out: 19, 33, 11, 12? (a) 19 (b) 33 (c) 11 (d) 12
  27. 27.Which number is the odd one out: 59, 6, 2, 79? (a) 59 (b) 6 (c) 2 (d) 79
  28. 28.Which number is the odd one out: 64, 52, 4, 16? (a) 64 (b) 52 (c) 4 (d) 16
  29. 29.Which number is the odd one out: 29, 72, 23, 47? (a) 29 (b) 72 (c) 23 (d) 47
  30. 30.Which number is the odd one out: 83, 61, 81, 3? (a) 83 (b) 61 (c) 81 (d) 3
  31. 31.Which number is the odd one out: 37, 67, 2, 52? (a) 37 (b) 67 (c) 2 (d) 52
  32. 32.Which number is the odd one out: 56, 41, 37, 47? (a) 56 (b) 41 (c) 37 (d) 47
  33. 33.Which number is the odd one out: 13, 50, 41, 2? (a) 13 (b) 50 (c) 41 (d) 2
  34. 34.Which number is the odd one out: 97, 53, 12, 79? (a) 97 (b) 53 (c) 12 (d) 79
  35. 35.Which number is the odd one out: 18, 42, 99, 27? (a) 18 (b) 42 (c) 99 (d) 27
  36. 36.Which number is the odd one out: 5, 7, 35, 52? (a) 5 (b) 7 (c) 35 (d) 52
  37. 37.Which number is the odd one out: 40, 20, 79, 80? (a) 40 (b) 20 (c) 79 (d) 80
  38. 38.Which number is the odd one out: 29, 83, 34, 73? (a) 29 (b) 83 (c) 34 (d) 73
  39. 39.Which number is the odd one out: 54, 31, 73, 71? (a) 54 (b) 31 (c) 73 (d) 71
  40. 40.Which number is the odd one out: 16, 4, 86, 64? (a) 16 (b) 4 (c) 86 (d) 64

Answer key

  1. 37
  2. 16
  3. 16
  4. 54
  5. 65
  6. 35
  7. 66
  8. 39
  9. 75
  10. 35
  11. 83
  12. 37
  13. 9
  14. 70
  15. 21
  16. 28
  17. 93
  18. 77
  19. 24
  20. 15
  21. 60
  22. 90
  23. 9
  24. 80
  25. 91
  26. 12
  27. 6
  28. 52
  29. 72
  30. 81
  31. 52
  32. 56
  33. 50
  34. 12
  35. 42
  36. 52
  37. 79
  38. 34
  39. 54
  40. 86

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