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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 202 · 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: 72, 53, 13, 17? (a) 72 (b) 53 (c) 13 (d) 17
  2. 2.Which number is the odd one out: 61, 29, 76, 71? (a) 61 (b) 29 (c) 76 (d) 71
  3. 3.Which number is the odd one out: 17, 73, 61, 50? (a) 17 (b) 73 (c) 61 (d) 50
  4. 4.Which number is the odd one out: 79, 23, 83, 36? (a) 79 (b) 23 (c) 83 (d) 36
  5. 5.Which number is the odd one out: 67, 10, 47, 83? (a) 67 (b) 10 (c) 47 (d) 83
  6. 6.Which number is the odd one out: 47, 18, 39, 23? (a) 47 (b) 18 (c) 39 (d) 23
  7. 7.Which number is the odd one out: 17, 42, 11, 39? (a) 17 (b) 42 (c) 11 (d) 39
  8. 8.Which number is the odd one out: 29, 86, 67, 59? (a) 29 (b) 86 (c) 67 (d) 59
  9. 9.Which number is the odd one out: 31, 53, 92, 97? (a) 31 (b) 53 (c) 92 (d) 97
  10. 10.Which number is the odd one out: 32, 48, 8, 12? (a) 32 (b) 48 (c) 8 (d) 12
  11. 11.Which number is the odd one out: 97, 60, 13, 59? (a) 97 (b) 60 (c) 13 (d) 59
  12. 12.Which number is the odd one out: 22, 97, 23, 71? (a) 22 (b) 97 (c) 23 (d) 71
  13. 13.Which number is the odd one out: 5, 27, 57, 99? (a) 5 (b) 27 (c) 57 (d) 99
  14. 14.Which number is the odd one out: 80, 81, 9, 16? (a) 80 (b) 81 (c) 9 (d) 16
  15. 15.Which number is the odd one out: 7, 37, 53, 91? (a) 7 (b) 37 (c) 53 (d) 91
  16. 16.Which number is the odd one out: 31, 13, 82, 71? (a) 31 (b) 13 (c) 82 (d) 71
  17. 17.Which number is the odd one out: 5, 19, 23, 20? (a) 5 (b) 19 (c) 23 (d) 20
  18. 18.Which number is the odd one out: 88, 24, 12, 25? (a) 88 (b) 24 (c) 12 (d) 25
  19. 19.Which number is the odd one out: 71, 19, 56, 83? (a) 71 (b) 19 (c) 56 (d) 83
  20. 20.Which number is the odd one out: 52, 19, 23, 67? (a) 52 (b) 19 (c) 23 (d) 67
  21. 21.Which number is the odd one out: 17, 89, 53, 52? (a) 17 (b) 89 (c) 53 (d) 52
  22. 22.Which number is the odd one out: 34, 33, 46, 62? (a) 34 (b) 33 (c) 46 (d) 62
  23. 23.Which number is the odd one out: 26, 78, 24, 48? (a) 26 (b) 78 (c) 24 (d) 48
  24. 24.Which number is the odd one out: 87, 95, 65, 55? (a) 87 (b) 95 (c) 65 (d) 55
  25. 25.Which number is the odd one out: 99, 6, 48, 72? (a) 99 (b) 6 (c) 48 (d) 72
  26. 26.Which number is the odd one out: 17, 20, 79, 59? (a) 17 (b) 20 (c) 79 (d) 59
  27. 27.Which number is the odd one out: 84, 42, 78, 92? (a) 84 (b) 42 (c) 78 (d) 92
  28. 28.Which number is the odd one out: 11, 73, 31, 25? (a) 11 (b) 73 (c) 31 (d) 25
  29. 29.Which number is the odd one out: 97, 23, 29, 87? (a) 97 (b) 23 (c) 29 (d) 87
  30. 30.Which number is the odd one out: 43, 71, 32, 13? (a) 43 (b) 71 (c) 32 (d) 13
  31. 31.Which number is the odd one out: 93, 3, 59, 73? (a) 93 (b) 3 (c) 59 (d) 73
  32. 32.Which number is the odd one out: 71, 61, 33, 54? (a) 71 (b) 61 (c) 33 (d) 54
  33. 33.Which number is the odd one out: 37, 89, 59, 95? (a) 37 (b) 89 (c) 59 (d) 95
  34. 34.Which number is the odd one out: 83, 69, 47, 59? (a) 83 (b) 69 (c) 47 (d) 59
  35. 35.Which number is the odd one out: 5, 51, 83, 30? (a) 5 (b) 51 (c) 83 (d) 30
  36. 36.Which number is the odd one out: 77, 24, 48, 96? (a) 77 (b) 24 (c) 48 (d) 96
  37. 37.Which number is the odd one out: 47, 13, 53, 12? (a) 47 (b) 13 (c) 53 (d) 12
  38. 38.Which number is the odd one out: 79, 13, 67, 20? (a) 79 (b) 13 (c) 67 (d) 20
  39. 39.Which number is the odd one out: 81, 64, 15, 45? (a) 81 (b) 64 (c) 15 (d) 45
  40. 40.Which number is the odd one out: 13, 19, 21, 3? (a) 13 (b) 19 (c) 21 (d) 3

Answer key

  1. 72
  2. 76
  3. 50
  4. 36
  5. 10
  6. 18
  7. 42
  8. 86
  9. 92
  10. 12
  11. 60
  12. 22
  13. 5
  14. 80
  15. 91
  16. 82
  17. 20
  18. 25
  19. 56
  20. 52
  21. 52
  22. 33
  23. 26
  24. 87
  25. 99
  26. 20
  27. 92
  28. 25
  29. 87
  30. 32
  31. 93
  32. 54
  33. 95
  34. 69
  35. 30
  36. 77
  37. 12
  38. 20
  39. 64
  40. 21

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