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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 453 · 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: 67, 30, 51, 17? (a) 67 (b) 30 (c) 51 (d) 17
  2. 2.Which number is the odd one out: 81, 41, 47, 11? (a) 81 (b) 41 (c) 47 (d) 11
  3. 3.Which number is the odd one out: 47, 17, 83, 32? (a) 47 (b) 17 (c) 83 (d) 32
  4. 4.Which number is the odd one out: 94, 86, 67, 46? (a) 94 (b) 86 (c) 67 (d) 46
  5. 5.Which number is the odd one out: 12, 24, 96, 9? (a) 12 (b) 24 (c) 96 (d) 9
  6. 6.Which number is the odd one out: 41, 72, 71, 73? (a) 41 (b) 72 (c) 71 (d) 73
  7. 7.Which number is the odd one out: 83, 26, 11, 41? (a) 83 (b) 26 (c) 11 (d) 41
  8. 8.Which number is the odd one out: 41, 83, 74, 89? (a) 41 (b) 83 (c) 74 (d) 89
  9. 9.Which number is the odd one out: 73, 71, 10, 2? (a) 73 (b) 71 (c) 10 (d) 2
  10. 10.Which number is the odd one out: 53, 26, 41, 29? (a) 53 (b) 26 (c) 41 (d) 29
  11. 11.Which number is the odd one out: 85, 65, 50, 48? (a) 85 (b) 65 (c) 50 (d) 48
  12. 12.Which number is the odd one out: 97, 17, 87, 24? (a) 97 (b) 17 (c) 87 (d) 24
  13. 13.Which number is the odd one out: 47, 43, 59, 54? (a) 47 (b) 43 (c) 59 (d) 54
  14. 14.Which number is the odd one out: 47, 97, 51, 11? (a) 47 (b) 97 (c) 51 (d) 11
  15. 15.Which number is the odd one out: 89, 41, 37, 77? (a) 89 (b) 41 (c) 37 (d) 77
  16. 16.Which number is the odd one out: 43, 90, 83, 89? (a) 43 (b) 90 (c) 83 (d) 89
  17. 17.Which number is the odd one out: 31, 86, 11, 17? (a) 31 (b) 86 (c) 11 (d) 17
  18. 18.Which number is the odd one out: 73, 78, 6, 66? (a) 73 (b) 78 (c) 6 (d) 66
  19. 19.Which number is the odd one out: 29, 6, 66, 26? (a) 29 (b) 6 (c) 66 (d) 26
  20. 20.Which number is the odd one out: 50, 95, 10, 19? (a) 50 (b) 95 (c) 10 (d) 19
  21. 21.Which number is the odd one out: 37, 17, 98, 73? (a) 37 (b) 17 (c) 98 (d) 73
  22. 22.Which number is the odd one out: 88, 32, 70, 56? (a) 88 (b) 32 (c) 70 (d) 56
  23. 23.Which number is the odd one out: 31, 91, 13, 79? (a) 31 (b) 91 (c) 13 (d) 79
  24. 24.Which number is the odd one out: 36, 79, 17, 3? (a) 36 (b) 79 (c) 17 (d) 3
  25. 25.Which number is the odd one out: 59, 84, 37, 13? (a) 59 (b) 84 (c) 37 (d) 13
  26. 26.Which number is the odd one out: 43, 31, 23, 90? (a) 43 (b) 31 (c) 23 (d) 90
  27. 27.Which number is the odd one out: 43, 53, 54, 13? (a) 43 (b) 53 (c) 54 (d) 13
  28. 28.Which number is the odd one out: 13, 37, 51, 17? (a) 13 (b) 37 (c) 51 (d) 17
  29. 29.Which number is the odd one out: 13, 97, 41, 90? (a) 13 (b) 97 (c) 41 (d) 90
  30. 30.Which number is the odd one out: 66, 44, 30, 60? (a) 66 (b) 44 (c) 30 (d) 60
  31. 31.Which number is the odd one out: 53, 79, 47, 94? (a) 53 (b) 79 (c) 47 (d) 94
  32. 32.Which number is the odd one out: 19, 79, 13, 50? (a) 19 (b) 79 (c) 13 (d) 50
  33. 33.Which number is the odd one out: 12, 21, 30, 60? (a) 12 (b) 21 (c) 30 (d) 60
  34. 34.Which number is the odd one out: 61, 89, 48, 31? (a) 61 (b) 89 (c) 48 (d) 31
  35. 35.Which number is the odd one out: 32, 71, 59, 53? (a) 32 (b) 71 (c) 59 (d) 53
  36. 36.Which number is the odd one out: 24, 89, 19, 61? (a) 24 (b) 89 (c) 19 (d) 61
  37. 37.Which number is the odd one out: 11, 19, 16, 37? (a) 11 (b) 19 (c) 16 (d) 37
  38. 38.Which number is the odd one out: 78, 83, 97, 73? (a) 78 (b) 83 (c) 97 (d) 73
  39. 39.Which number is the odd one out: 38, 17, 83, 13? (a) 38 (b) 17 (c) 83 (d) 13
  40. 40.Which number is the odd one out: 83, 31, 79, 16? (a) 83 (b) 31 (c) 79 (d) 16

Answer key

  1. 30
  2. 81
  3. 32
  4. 67
  5. 9
  6. 72
  7. 26
  8. 74
  9. 10
  10. 26
  11. 48
  12. 24
  13. 54
  14. 51
  15. 77
  16. 90
  17. 86
  18. 73
  19. 29
  20. 19
  21. 98
  22. 70
  23. 91
  24. 36
  25. 84
  26. 90
  27. 54
  28. 51
  29. 90
  30. 44
  31. 94
  32. 50
  33. 21
  34. 48
  35. 32
  36. 24
  37. 16
  38. 78
  39. 38
  40. 16

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