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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 171 · 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: 47, 40, 11, 73? (a) 47 (b) 40 (c) 11 (d) 73
  2. 2.Which number is the odd one out: 22, 53, 97, 41? (a) 22 (b) 53 (c) 97 (d) 41
  3. 3.Which number is the odd one out: 78, 72, 18, 56? (a) 78 (b) 72 (c) 18 (d) 56
  4. 4.Which number is the odd one out: 81, 9, 8, 64? (a) 81 (b) 9 (c) 8 (d) 64
  5. 5.Which number is the odd one out: 31, 10, 73, 41? (a) 31 (b) 10 (c) 73 (d) 41
  6. 6.Which number is the odd one out: 66, 55, 78, 6? (a) 66 (b) 55 (c) 78 (d) 6
  7. 7.Which number is the odd one out: 27, 83, 23, 13? (a) 27 (b) 83 (c) 23 (d) 13
  8. 8.Which number is the odd one out: 88, 24, 2, 48? (a) 88 (b) 24 (c) 2 (d) 48
  9. 9.Which number is the odd one out: 54, 8, 96, 88? (a) 54 (b) 8 (c) 96 (d) 88
  10. 10.Which number is the odd one out: 81, 29, 43, 3? (a) 81 (b) 29 (c) 43 (d) 3
  11. 11.Which number is the odd one out: 19, 5, 90, 83? (a) 19 (b) 5 (c) 90 (d) 83
  12. 12.Which number is the odd one out: 11, 13, 57, 23? (a) 11 (b) 13 (c) 57 (d) 23
  13. 13.Which number is the odd one out: 59, 29, 37, 20? (a) 59 (b) 29 (c) 37 (d) 20
  14. 14.Which number is the odd one out: 54, 24, 40, 20? (a) 54 (b) 24 (c) 40 (d) 20
  15. 15.Which number is the odd one out: 43, 37, 70, 7? (a) 43 (b) 37 (c) 70 (d) 7
  16. 16.Which number is the odd one out: 47, 11, 4, 41? (a) 47 (b) 11 (c) 4 (d) 41
  17. 17.Which number is the odd one out: 79, 61, 39, 3? (a) 79 (b) 61 (c) 39 (d) 3
  18. 18.Which number is the odd one out: 12, 83, 53, 2? (a) 12 (b) 83 (c) 53 (d) 2
  19. 19.Which number is the odd one out: 83, 19, 34, 41? (a) 83 (b) 19 (c) 34 (d) 41
  20. 20.Which number is the odd one out: 27, 9, 36, 60? (a) 27 (b) 9 (c) 36 (d) 60
  21. 21.Which number is the odd one out: 13, 67, 49, 17? (a) 13 (b) 67 (c) 49 (d) 17
  22. 22.Which number is the odd one out: 6, 59, 2, 73? (a) 6 (b) 59 (c) 2 (d) 73
  23. 23.Which number is the odd one out: 37, 59, 74, 67? (a) 37 (b) 59 (c) 74 (d) 67
  24. 24.Which number is the odd one out: 89, 11, 7, 28? (a) 89 (b) 11 (c) 7 (d) 28
  25. 25.Which number is the odd one out: 79, 11, 31, 86? (a) 79 (b) 11 (c) 31 (d) 86
  26. 26.Which number is the odd one out: 47, 73, 90, 31? (a) 47 (b) 73 (c) 90 (d) 31
  27. 27.Which number is the odd one out: 37, 74, 11, 23? (a) 37 (b) 74 (c) 11 (d) 23
  28. 28.Which number is the odd one out: 74, 72, 96, 54? (a) 74 (b) 72 (c) 96 (d) 54
  29. 29.Which number is the odd one out: 67, 97, 17, 69? (a) 67 (b) 97 (c) 17 (d) 69
  30. 30.Which number is the odd one out: 17, 64, 73, 13? (a) 17 (b) 64 (c) 73 (d) 13
  31. 31.Which number is the odd one out: 43, 77, 89, 13? (a) 43 (b) 77 (c) 89 (d) 13
  32. 32.Which number is the odd one out: 79, 17, 62, 11? (a) 79 (b) 17 (c) 62 (d) 11
  33. 33.Which number is the odd one out: 64, 53, 8, 16? (a) 64 (b) 53 (c) 8 (d) 16
  34. 34.Which number is the odd one out: 90, 13, 53, 97? (a) 90 (b) 13 (c) 53 (d) 97
  35. 35.Which number is the odd one out: 17, 52, 73, 43? (a) 17 (b) 52 (c) 73 (d) 43
  36. 36.Which number is the odd one out: 81, 88, 64, 9? (a) 81 (b) 88 (c) 64 (d) 9
  37. 37.Which number is the odd one out: 96, 24, 88, 97? (a) 96 (b) 24 (c) 88 (d) 97
  38. 38.Which number is the odd one out: 2, 23, 79, 18? (a) 2 (b) 23 (c) 79 (d) 18
  39. 39.Which number is the odd one out: 7, 14, 13, 98? (a) 7 (b) 14 (c) 13 (d) 98
  40. 40.Which number is the odd one out: 29, 73, 53, 12? (a) 29 (b) 73 (c) 53 (d) 12

Answer key

  1. 40
  2. 22
  3. 56
  4. 8
  5. 10
  6. 55
  7. 27
  8. 2
  9. 54
  10. 81
  11. 90
  12. 57
  13. 20
  14. 54
  15. 70
  16. 4
  17. 39
  18. 12
  19. 34
  20. 60
  21. 49
  22. 6
  23. 74
  24. 28
  25. 86
  26. 90
  27. 74
  28. 74
  29. 69
  30. 64
  31. 77
  32. 62
  33. 53
  34. 90
  35. 52
  36. 88
  37. 97
  38. 18
  39. 13
  40. 12

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