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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 289 · 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: 23, 6, 78, 66? (a) 23 (b) 6 (c) 78 (d) 66
  2. 2.Which number is the odd one out: 74, 43, 13, 53? (a) 74 (b) 43 (c) 13 (d) 53
  3. 3.Which number is the odd one out: 2, 24, 13, 53? (a) 2 (b) 24 (c) 13 (d) 53
  4. 4.Which number is the odd one out: 70, 12, 48, 96? (a) 70 (b) 12 (c) 48 (d) 96
  5. 5.Which number is the odd one out: 95, 97, 89, 59? (a) 95 (b) 97 (c) 89 (d) 59
  6. 6.Which number is the odd one out: 31, 61, 15, 23? (a) 31 (b) 61 (c) 15 (d) 23
  7. 7.Which number is the odd one out: 88, 16, 64, 94? (a) 88 (b) 16 (c) 64 (d) 94
  8. 8.Which number is the odd one out: 41, 70, 31, 37? (a) 41 (b) 70 (c) 31 (d) 37
  9. 9.Which number is the odd one out: 4, 96, 88, 48? (a) 4 (b) 96 (c) 88 (d) 48
  10. 10.Which number is the odd one out: 8, 32, 48, 6? (a) 8 (b) 32 (c) 48 (d) 6
  11. 11.Which number is the odd one out: 97, 3, 83, 87? (a) 97 (b) 3 (c) 83 (d) 87
  12. 12.Which number is the odd one out: 41, 4, 11, 67? (a) 41 (b) 4 (c) 11 (d) 67
  13. 13.Which number is the odd one out: 70, 67, 95, 47? (a) 70 (b) 67 (c) 95 (d) 47
  14. 14.Which number is the odd one out: 53, 31, 40, 47? (a) 53 (b) 31 (c) 40 (d) 47
  15. 15.Which number is the odd one out: 3, 11, 29, 78? (a) 3 (b) 11 (c) 29 (d) 78
  16. 16.Which number is the odd one out: 5, 37, 43, 45? (a) 5 (b) 37 (c) 43 (d) 45
  17. 17.Which number is the odd one out: 20, 33, 93, 69? (a) 20 (b) 33 (c) 93 (d) 69
  18. 18.Which number is the odd one out: 29, 56, 17, 13? (a) 29 (b) 56 (c) 17 (d) 13
  19. 19.Which number is the odd one out: 8, 15, 4, 16? (a) 8 (b) 15 (c) 4 (d) 16
  20. 20.Which number is the odd one out: 5, 27, 15, 99? (a) 5 (b) 27 (c) 15 (d) 99
  21. 21.Which number is the odd one out: 8, 32, 40, 85? (a) 8 (b) 32 (c) 40 (d) 85
  22. 22.Which number is the odd one out: 17, 59, 3, 78? (a) 17 (b) 59 (c) 3 (d) 78
  23. 23.Which number is the odd one out: 47, 48, 23, 3? (a) 47 (b) 48 (c) 23 (d) 3
  24. 24.Which number is the odd one out: 60, 8, 96, 32? (a) 60 (b) 8 (c) 96 (d) 32
  25. 25.Which number is the odd one out: 48, 73, 12, 24? (a) 48 (b) 73 (c) 12 (d) 24
  26. 26.Which number is the odd one out: 89, 31, 11, 57? (a) 89 (b) 31 (c) 11 (d) 57
  27. 27.Which number is the odd one out: 31, 41, 23, 91? (a) 31 (b) 41 (c) 23 (d) 91
  28. 28.Which number is the odd one out: 89, 72, 2, 71? (a) 89 (b) 72 (c) 2 (d) 71
  29. 29.Which number is the odd one out: 6, 48, 24, 74? (a) 6 (b) 48 (c) 24 (d) 74
  30. 30.Which number is the odd one out: 11, 65, 20, 31? (a) 11 (b) 65 (c) 20 (d) 31
  31. 31.Which number is the odd one out: 36, 99, 12, 9? (a) 36 (b) 99 (c) 12 (d) 9
  32. 32.Which number is the odd one out: 6, 66, 63, 18? (a) 6 (b) 66 (c) 63 (d) 18
  33. 33.Which number is the odd one out: 17, 73, 43, 6? (a) 17 (b) 73 (c) 43 (d) 6
  34. 34.Which number is the odd one out: 23, 9, 83, 11? (a) 23 (b) 9 (c) 83 (d) 11
  35. 35.Which number is the odd one out: 8, 43, 11, 13? (a) 8 (b) 43 (c) 11 (d) 13
  36. 36.Which number is the odd one out: 45, 36, 50, 25? (a) 45 (b) 36 (c) 50 (d) 25
  37. 37.Which number is the odd one out: 35, 70, 23, 98? (a) 35 (b) 70 (c) 23 (d) 98
  38. 38.Which number is the odd one out: 41, 37, 71, 24? (a) 41 (b) 37 (c) 71 (d) 24
  39. 39.Which number is the odd one out: 60, 12, 86, 30? (a) 60 (b) 12 (c) 86 (d) 30
  40. 40.Which number is the odd one out: 6, 49, 12, 84? (a) 6 (b) 49 (c) 12 (d) 84

Answer key

  1. 23
  2. 74
  3. 24
  4. 70
  5. 95
  6. 15
  7. 94
  8. 70
  9. 4
  10. 6
  11. 87
  12. 4
  13. 70
  14. 40
  15. 78
  16. 45
  17. 20
  18. 56
  19. 15
  20. 5
  21. 85
  22. 78
  23. 48
  24. 60
  25. 73
  26. 57
  27. 91
  28. 72
  29. 74
  30. 20
  31. 12
  32. 63
  33. 6
  34. 9
  35. 8
  36. 36
  37. 23
  38. 24
  39. 86
  40. 49

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