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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 804 · 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: 10, 5, 29, 47? (a) 10 (b) 5 (c) 29 (d) 47
  2. 2.Which number is the odd one out: 30, 8, 20, 48? (a) 30 (b) 8 (c) 20 (d) 48
  3. 3.Which number is the odd one out: 71, 31, 37, 87? (a) 71 (b) 31 (c) 37 (d) 87
  4. 4.Which number is the odd one out: 12, 67, 51, 59? (a) 12 (b) 67 (c) 51 (d) 59
  5. 5.Which number is the odd one out: 71, 31, 83, 26? (a) 71 (b) 31 (c) 83 (d) 26
  6. 6.Which number is the odd one out: 97, 53, 22, 59? (a) 97 (b) 53 (c) 22 (d) 59
  7. 7.Which number is the odd one out: 89, 67, 3, 90? (a) 89 (b) 67 (c) 3 (d) 90
  8. 8.Which number is the odd one out: 97, 47, 52, 89? (a) 97 (b) 47 (c) 52 (d) 89
  9. 9.Which number is the odd one out: 41, 66, 3, 19? (a) 41 (b) 66 (c) 3 (d) 19
  10. 10.Which number is the odd one out: 53, 73, 79, 88? (a) 53 (b) 73 (c) 79 (d) 88
  11. 11.Which number is the odd one out: 20, 15, 75, 8? (a) 20 (b) 15 (c) 75 (d) 8
  12. 12.Which number is the odd one out: 33, 47, 29, 43? (a) 33 (b) 47 (c) 29 (d) 43
  13. 13.Which number is the odd one out: 91, 37, 67, 7? (a) 91 (b) 37 (c) 67 (d) 7
  14. 14.Which number is the odd one out: 73, 52, 97, 19? (a) 73 (b) 52 (c) 97 (d) 19
  15. 15.Which number is the odd one out: 37, 67, 24, 13? (a) 37 (b) 67 (c) 24 (d) 13
  16. 16.Which number is the odd one out: 14, 96, 56, 24? (a) 14 (b) 96 (c) 56 (d) 24
  17. 17.Which number is the odd one out: 10, 37, 40, 80? (a) 10 (b) 37 (c) 40 (d) 80
  18. 18.Which number is the odd one out: 9, 59, 41, 83? (a) 9 (b) 59 (c) 41 (d) 83
  19. 19.Which number is the odd one out: 16, 64, 88, 44? (a) 16 (b) 64 (c) 88 (d) 44
  20. 20.Which number is the odd one out: 59, 30, 5, 3? (a) 59 (b) 30 (c) 5 (d) 3
  21. 21.Which number is the odd one out: 58, 13, 59, 2? (a) 58 (b) 13 (c) 59 (d) 2
  22. 22.Which number is the odd one out: 15, 17, 83, 59? (a) 15 (b) 17 (c) 83 (d) 59
  23. 23.Which number is the odd one out: 10, 61, 17, 31? (a) 10 (b) 61 (c) 17 (d) 31
  24. 24.Which number is the odd one out: 41, 80, 47, 89? (a) 41 (b) 80 (c) 47 (d) 89
  25. 25.Which number is the odd one out: 66, 19, 17, 29? (a) 66 (b) 19 (c) 17 (d) 29
  26. 26.Which number is the odd one out: 50, 37, 97, 29? (a) 50 (b) 37 (c) 97 (d) 29
  27. 27.Which number is the odd one out: 41, 14, 79, 13? (a) 41 (b) 14 (c) 79 (d) 13
  28. 28.Which number is the odd one out: 43, 86, 29, 67? (a) 43 (b) 86 (c) 29 (d) 67
  29. 29.Which number is the odd one out: 81, 70, 9, 49? (a) 81 (b) 70 (c) 9 (d) 49
  30. 30.Which number is the odd one out: 5, 23, 25, 19? (a) 5 (b) 23 (c) 25 (d) 19
  31. 31.Which number is the odd one out: 41, 5, 43, 15? (a) 41 (b) 5 (c) 43 (d) 15
  32. 32.Which number is the odd one out: 73, 37, 33, 59? (a) 73 (b) 37 (c) 33 (d) 59
  33. 33.Which number is the odd one out: 89, 73, 22, 2? (a) 89 (b) 73 (c) 22 (d) 2
  34. 34.Which number is the odd one out: 41, 19, 9, 17? (a) 41 (b) 19 (c) 9 (d) 17
  35. 35.Which number is the odd one out: 40, 43, 23, 19? (a) 40 (b) 43 (c) 23 (d) 19
  36. 36.Which number is the odd one out: 35, 5, 7, 77? (a) 35 (b) 5 (c) 7 (d) 77
  37. 37.Which number is the odd one out: 94, 44, 32, 88? (a) 94 (b) 44 (c) 32 (d) 88
  38. 38.Which number is the odd one out: 65, 75, 85, 78? (a) 65 (b) 75 (c) 85 (d) 78
  39. 39.Which number is the odd one out: 30, 65, 66, 51? (a) 30 (b) 65 (c) 66 (d) 51
  40. 40.Which number is the odd one out: 75, 5, 42, 19? (a) 75 (b) 5 (c) 42 (d) 19

Answer key

  1. 10
  2. 30
  3. 87
  4. 12
  5. 26
  6. 22
  7. 90
  8. 52
  9. 66
  10. 88
  11. 8
  12. 33
  13. 91
  14. 52
  15. 24
  16. 14
  17. 37
  18. 9
  19. 44
  20. 30
  21. 58
  22. 15
  23. 10
  24. 80
  25. 66
  26. 50
  27. 14
  28. 86
  29. 70
  30. 25
  31. 15
  32. 33
  33. 22
  34. 9
  35. 40
  36. 5
  37. 94
  38. 78
  39. 65
  40. 42

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