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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 581 · 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: 18, 55, 27, 90? (a) 18 (b) 55 (c) 27 (d) 90
  2. 2.Which number is the odd one out: 42, 84, 83, 12? (a) 42 (b) 84 (c) 83 (d) 12
  3. 3.Which number is the odd one out: 37, 12, 59, 41? (a) 37 (b) 12 (c) 59 (d) 41
  4. 4.Which number is the odd one out: 3, 17, 7, 42? (a) 3 (b) 17 (c) 7 (d) 42
  5. 5.Which number is the odd one out: 63, 47, 97, 23? (a) 63 (b) 47 (c) 97 (d) 23
  6. 6.Which number is the odd one out: 41, 58, 37, 83? (a) 41 (b) 58 (c) 37 (d) 83
  7. 7.Which number is the odd one out: 6, 53, 79, 13? (a) 6 (b) 53 (c) 79 (d) 13
  8. 8.Which number is the odd one out: 59, 46, 13, 41? (a) 59 (b) 46 (c) 13 (d) 41
  9. 9.Which number is the odd one out: 67, 50, 41, 97? (a) 67 (b) 50 (c) 41 (d) 97
  10. 10.Which number is the odd one out: 44, 92, 33, 68? (a) 44 (b) 92 (c) 33 (d) 68
  11. 11.Which number is the odd one out: 73, 61, 37, 94? (a) 73 (b) 61 (c) 37 (d) 94
  12. 12.Which number is the odd one out: 89, 11, 21, 61? (a) 89 (b) 11 (c) 21 (d) 61
  13. 13.Which number is the odd one out: 28, 13, 37, 61? (a) 28 (b) 13 (c) 37 (d) 61
  14. 14.Which number is the odd one out: 28, 49, 32, 64? (a) 28 (b) 49 (c) 32 (d) 64
  15. 15.Which number is the odd one out: 41, 23, 8, 31? (a) 41 (b) 23 (c) 8 (d) 31
  16. 16.Which number is the odd one out: 31, 69, 96, 47? (a) 31 (b) 69 (c) 96 (d) 47
  17. 17.Which number is the odd one out: 96, 48, 88, 25? (a) 96 (b) 48 (c) 88 (d) 25
  18. 18.Which number is the odd one out: 19, 23, 2, 58? (a) 19 (b) 23 (c) 2 (d) 58
  19. 19.Which number is the odd one out: 78, 54, 66, 63? (a) 78 (b) 54 (c) 66 (d) 63
  20. 20.Which number is the odd one out: 61, 92, 79, 31? (a) 61 (b) 92 (c) 79 (d) 31
  21. 21.Which number is the odd one out: 74, 96, 88, 24? (a) 74 (b) 96 (c) 88 (d) 24
  22. 22.Which number is the odd one out: 41, 9, 67, 97? (a) 41 (b) 9 (c) 67 (d) 97
  23. 23.Which number is the odd one out: 14, 5, 91, 70? (a) 14 (b) 5 (c) 91 (d) 70
  24. 24.Which number is the odd one out: 17, 11, 6, 57? (a) 17 (b) 11 (c) 6 (d) 57
  25. 25.Which number is the odd one out: 49, 43, 53, 17? (a) 49 (b) 43 (c) 53 (d) 17
  26. 26.Which number is the odd one out: 53, 17, 34, 89? (a) 53 (b) 17 (c) 34 (d) 89
  27. 27.Which number is the odd one out: 59, 26, 11, 41? (a) 59 (b) 26 (c) 11 (d) 41
  28. 28.Which number is the odd one out: 85, 83, 73, 59? (a) 85 (b) 83 (c) 73 (d) 59
  29. 29.Which number is the odd one out: 43, 83, 25, 23? (a) 43 (b) 83 (c) 25 (d) 23
  30. 30.Which number is the odd one out: 47, 57, 3, 82? (a) 47 (b) 57 (c) 3 (d) 82
  31. 31.Which number is the odd one out: 87, 23, 97, 43? (a) 87 (b) 23 (c) 97 (d) 43
  32. 32.Which number is the odd one out: 31, 87, 3, 29? (a) 31 (b) 87 (c) 3 (d) 29
  33. 33.Which number is the odd one out: 81, 9, 99, 31? (a) 81 (b) 9 (c) 99 (d) 31
  34. 34.Which number is the odd one out: 96, 88, 17, 24? (a) 96 (b) 88 (c) 17 (d) 24
  35. 35.Which number is the odd one out: 8, 70, 32, 88? (a) 8 (b) 70 (c) 32 (d) 88
  36. 36.Which number is the odd one out: 39, 79, 56, 3? (a) 39 (b) 79 (c) 56 (d) 3
  37. 37.Which number is the odd one out: 5, 85, 22, 43? (a) 5 (b) 85 (c) 22 (d) 43
  38. 38.Which number is the odd one out: 29, 59, 77, 97? (a) 29 (b) 59 (c) 77 (d) 97
  39. 39.Which number is the odd one out: 27, 81, 49, 63? (a) 27 (b) 81 (c) 49 (d) 63
  40. 40.Which number is the odd one out: 8, 32, 88, 33? (a) 8 (b) 32 (c) 88 (d) 33

Answer key

  1. 55
  2. 83
  3. 12
  4. 42
  5. 63
  6. 58
  7. 6
  8. 46
  9. 50
  10. 33
  11. 94
  12. 21
  13. 28
  14. 49
  15. 8
  16. 96
  17. 25
  18. 58
  19. 63
  20. 92
  21. 74
  22. 9
  23. 5
  24. 6
  25. 49
  26. 34
  27. 26
  28. 85
  29. 25
  30. 82
  31. 87
  32. 87
  33. 31
  34. 17
  35. 70
  36. 56
  37. 22
  38. 77
  39. 49
  40. 33

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