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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 758 · 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: 55, 50, 58, 65? (a) 55 (b) 50 (c) 58 (d) 65
  2. 2.Which number is the odd one out: 19, 41, 69, 53? (a) 19 (b) 41 (c) 69 (d) 53
  3. 3.Which number is the odd one out: 6, 3, 89, 97? (a) 6 (b) 3 (c) 89 (d) 97
  4. 4.Which number is the odd one out: 64, 20, 16, 80? (a) 64 (b) 20 (c) 16 (d) 80
  5. 5.Which number is the odd one out: 4, 6, 36, 54? (a) 4 (b) 6 (c) 36 (d) 54
  6. 6.Which number is the odd one out: 43, 4, 89, 23? (a) 43 (b) 4 (c) 89 (d) 23
  7. 7.Which number is the odd one out: 33, 88, 52, 8? (a) 33 (b) 88 (c) 52 (d) 8
  8. 8.Which number is the odd one out: 96, 53, 32, 48? (a) 96 (b) 53 (c) 32 (d) 48
  9. 9.Which number is the odd one out: 59, 17, 97, 14? (a) 59 (b) 17 (c) 97 (d) 14
  10. 10.Which number is the odd one out: 9, 13, 73, 3? (a) 9 (b) 13 (c) 73 (d) 3
  11. 11.Which number is the odd one out: 63, 90, 18, 35? (a) 63 (b) 90 (c) 18 (d) 35
  12. 12.Which number is the odd one out: 43, 2, 83, 88? (a) 43 (b) 2 (c) 83 (d) 88
  13. 13.Which number is the odd one out: 43, 41, 21, 17? (a) 43 (b) 41 (c) 21 (d) 17
  14. 14.Which number is the odd one out: 73, 14, 19, 97? (a) 73 (b) 14 (c) 19 (d) 97
  15. 15.Which number is the odd one out: 41, 89, 54, 3? (a) 41 (b) 89 (c) 54 (d) 3
  16. 16.Which number is the odd one out: 29, 19, 61, 62? (a) 29 (b) 19 (c) 61 (d) 62
  17. 17.Which number is the odd one out: 7, 84, 47, 31? (a) 7 (b) 84 (c) 47 (d) 31
  18. 18.Which number is the odd one out: 79, 11, 86, 19? (a) 79 (b) 11 (c) 86 (d) 19
  19. 19.Which number is the odd one out: 20, 42, 84, 66? (a) 20 (b) 42 (c) 84 (d) 66
  20. 20.Which number is the odd one out: 24, 48, 35, 96? (a) 24 (b) 48 (c) 35 (d) 96
  21. 21.Which number is the odd one out: 4, 97, 11, 41? (a) 4 (b) 97 (c) 11 (d) 41
  22. 22.Which number is the odd one out: 31, 9, 73, 89? (a) 31 (b) 9 (c) 73 (d) 89
  23. 23.Which number is the odd one out: 43, 44, 67, 89? (a) 43 (b) 44 (c) 67 (d) 89
  24. 24.Which number is the odd one out: 61, 71, 89, 14? (a) 61 (b) 71 (c) 89 (d) 14
  25. 25.Which number is the odd one out: 97, 83, 96, 73? (a) 97 (b) 83 (c) 96 (d) 73
  26. 26.Which number is the odd one out: 81, 27, 86, 9? (a) 81 (b) 27 (c) 86 (d) 9
  27. 27.Which number is the odd one out: 31, 59, 3, 63? (a) 31 (b) 59 (c) 3 (d) 63
  28. 28.Which number is the odd one out: 19, 38, 79, 67? (a) 19 (b) 38 (c) 79 (d) 67
  29. 29.Which number is the odd one out: 55, 95, 5, 71? (a) 55 (b) 95 (c) 5 (d) 71
  30. 30.Which number is the odd one out: 26, 24, 32, 96? (a) 26 (b) 24 (c) 32 (d) 96
  31. 31.Which number is the odd one out: 71, 13, 84, 59? (a) 71 (b) 13 (c) 84 (d) 59
  32. 32.Which number is the odd one out: 17, 66, 97, 47? (a) 17 (b) 66 (c) 97 (d) 47
  33. 33.Which number is the odd one out: 99, 97, 73, 17? (a) 99 (b) 97 (c) 73 (d) 17
  34. 34.Which number is the odd one out: 32, 24, 35, 48? (a) 32 (b) 24 (c) 35 (d) 48
  35. 35.Which number is the odd one out: 64, 16, 35, 80? (a) 64 (b) 16 (c) 35 (d) 80
  36. 36.Which number is the odd one out: 97, 53, 71, 94? (a) 97 (b) 53 (c) 71 (d) 94
  37. 37.Which number is the odd one out: 53, 40, 71, 47? (a) 53 (b) 40 (c) 71 (d) 47
  38. 38.Which number is the odd one out: 45, 26, 10, 94? (a) 45 (b) 26 (c) 10 (d) 94
  39. 39.Which number is the odd one out: 23, 53, 13, 82? (a) 23 (b) 53 (c) 13 (d) 82
  40. 40.Which number is the odd one out: 84, 81, 12, 42? (a) 84 (b) 81 (c) 12 (d) 42

Answer key

  1. 58
  2. 69
  3. 6
  4. 20
  5. 4
  6. 4
  7. 33
  8. 53
  9. 14
  10. 9
  11. 35
  12. 88
  13. 21
  14. 14
  15. 54
  16. 62
  17. 84
  18. 86
  19. 20
  20. 35
  21. 4
  22. 9
  23. 44
  24. 14
  25. 96
  26. 86
  27. 63
  28. 38
  29. 71
  30. 26
  31. 84
  32. 66
  33. 99
  34. 35
  35. 35
  36. 94
  37. 40
  38. 45
  39. 82
  40. 81

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