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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 526 · 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: 13, 11, 74, 73? (a) 13 (b) 11 (c) 74 (d) 73
  2. 2.Which number is the odd one out: 73, 42, 41, 79? (a) 73 (b) 42 (c) 41 (d) 79
  3. 3.Which number is the odd one out: 97, 74, 11, 31? (a) 97 (b) 74 (c) 11 (d) 31
  4. 4.Which number is the odd one out: 78, 79, 97, 47? (a) 78 (b) 79 (c) 97 (d) 47
  5. 5.Which number is the odd one out: 13, 57, 73, 6? (a) 13 (b) 57 (c) 73 (d) 6
  6. 6.Which number is the odd one out: 29, 44, 43, 53? (a) 29 (b) 44 (c) 43 (d) 53
  7. 7.Which number is the odd one out: 18, 27, 54, 97? (a) 18 (b) 27 (c) 54 (d) 97
  8. 8.Which number is the odd one out: 10, 90, 54, 79? (a) 10 (b) 90 (c) 54 (d) 79
  9. 9.Which number is the odd one out: 89, 48, 24, 32? (a) 89 (b) 48 (c) 24 (d) 32
  10. 10.Which number is the odd one out: 51, 43, 29, 17? (a) 51 (b) 43 (c) 29 (d) 17
  11. 11.Which number is the odd one out: 48, 79, 89, 43? (a) 48 (b) 79 (c) 89 (d) 43
  12. 12.Which number is the odd one out: 81, 66, 9, 99? (a) 81 (b) 66 (c) 9 (d) 99
  13. 13.Which number is the odd one out: 35, 7, 97, 13? (a) 35 (b) 7 (c) 97 (d) 13
  14. 14.Which number is the odd one out: 17, 79, 63, 29? (a) 17 (b) 79 (c) 63 (d) 29
  15. 15.Which number is the odd one out: 18, 41, 54, 27? (a) 18 (b) 41 (c) 54 (d) 27
  16. 16.Which number is the odd one out: 23, 59, 38, 41? (a) 23 (b) 59 (c) 38 (d) 41
  17. 17.Which number is the odd one out: 71, 16, 17, 13? (a) 71 (b) 16 (c) 17 (d) 13
  18. 18.Which number is the odd one out: 68, 52, 90, 92? (a) 68 (b) 52 (c) 90 (d) 92
  19. 19.Which number is the odd one out: 47, 61, 67, 96? (a) 47 (b) 61 (c) 67 (d) 96
  20. 20.Which number is the odd one out: 19, 17, 90, 11? (a) 19 (b) 17 (c) 90 (d) 11
  21. 21.Which number is the odd one out: 66, 48, 79, 96? (a) 66 (b) 48 (c) 79 (d) 96
  22. 22.Which number is the odd one out: 98, 83, 61, 11? (a) 98 (b) 83 (c) 61 (d) 11
  23. 23.Which number is the odd one out: 71, 21, 61, 89? (a) 71 (b) 21 (c) 61 (d) 89
  24. 24.Which number is the odd one out: 8, 23, 67, 29? (a) 8 (b) 23 (c) 67 (d) 29
  25. 25.Which number is the odd one out: 11, 53, 64, 17? (a) 11 (b) 53 (c) 64 (d) 17
  26. 26.Which number is the odd one out: 44, 19, 47, 59? (a) 44 (b) 19 (c) 47 (d) 59
  27. 27.Which number is the odd one out: 95, 28, 35, 55? (a) 95 (b) 28 (c) 35 (d) 55
  28. 28.Which number is the odd one out: 39, 73, 13, 47? (a) 39 (b) 73 (c) 13 (d) 47
  29. 29.Which number is the odd one out: 11, 57, 17, 23? (a) 11 (b) 57 (c) 17 (d) 23
  30. 30.Which number is the odd one out: 36, 84, 35, 9? (a) 36 (b) 84 (c) 35 (d) 9
  31. 31.Which number is the odd one out: 37, 29, 43, 84? (a) 37 (b) 29 (c) 43 (d) 84
  32. 32.Which number is the odd one out: 37, 79, 23, 91? (a) 37 (b) 79 (c) 23 (d) 91
  33. 33.Which number is the odd one out: 19, 20, 2, 11? (a) 19 (b) 20 (c) 2 (d) 11
  34. 34.Which number is the odd one out: 53, 61, 54, 71? (a) 53 (b) 61 (c) 54 (d) 71
  35. 35.Which number is the odd one out: 75, 57, 55, 85? (a) 75 (b) 57 (c) 55 (d) 85
  36. 36.Which number is the odd one out: 62, 83, 71, 13? (a) 62 (b) 83 (c) 71 (d) 13
  37. 37.Which number is the odd one out: 89, 79, 22, 59? (a) 89 (b) 79 (c) 22 (d) 59
  38. 38.Which number is the odd one out: 57, 3, 41, 97? (a) 57 (b) 3 (c) 41 (d) 97
  39. 39.Which number is the odd one out: 31, 53, 43, 30? (a) 31 (b) 53 (c) 43 (d) 30
  40. 40.Which number is the odd one out: 17, 8, 97, 47? (a) 17 (b) 8 (c) 97 (d) 47

Answer key

  1. 74
  2. 42
  3. 74
  4. 78
  5. 6
  6. 44
  7. 97
  8. 79
  9. 89
  10. 51
  11. 48
  12. 66
  13. 35
  14. 63
  15. 41
  16. 38
  17. 16
  18. 90
  19. 96
  20. 90
  21. 79
  22. 98
  23. 21
  24. 8
  25. 64
  26. 44
  27. 28
  28. 39
  29. 57
  30. 35
  31. 84
  32. 91
  33. 20
  34. 54
  35. 57
  36. 62
  37. 22
  38. 57
  39. 30
  40. 8

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