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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 99 · 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: 29, 67, 21, 59? (a) 29 (b) 67 (c) 21 (d) 59
  2. 2.Which number is the odd one out: 13, 96, 8, 48? (a) 13 (b) 96 (c) 8 (d) 48
  3. 3.Which number is the odd one out: 67, 51, 3, 8? (a) 67 (b) 51 (c) 3 (d) 8
  4. 4.Which number is the odd one out: 13, 89, 2, 78? (a) 13 (b) 89 (c) 2 (d) 78
  5. 5.Which number is the odd one out: 38, 18, 54, 78? (a) 38 (b) 18 (c) 54 (d) 78
  6. 6.Which number is the odd one out: 45, 9, 81, 5? (a) 45 (b) 9 (c) 81 (d) 5
  7. 7.Which number is the odd one out: 64, 12, 16, 4? (a) 64 (b) 12 (c) 16 (d) 4
  8. 8.Which number is the odd one out: 29, 11, 31, 25? (a) 29 (b) 11 (c) 31 (d) 25
  9. 9.Which number is the odd one out: 23, 96, 11, 17? (a) 23 (b) 96 (c) 11 (d) 17
  10. 10.Which number is the odd one out: 54, 8, 32, 96? (a) 54 (b) 8 (c) 32 (d) 96
  11. 11.Which number is the odd one out: 26, 73, 97, 31? (a) 26 (b) 73 (c) 97 (d) 31
  12. 12.Which number is the odd one out: 36, 24, 96, 81? (a) 36 (b) 24 (c) 96 (d) 81
  13. 13.Which number is the odd one out: 19, 23, 54, 83? (a) 19 (b) 23 (c) 54 (d) 83
  14. 14.Which number is the odd one out: 84, 48, 89, 56? (a) 84 (b) 48 (c) 89 (d) 56
  15. 15.Which number is the odd one out: 97, 20, 89, 11? (a) 97 (b) 20 (c) 89 (d) 11
  16. 16.Which number is the odd one out: 32, 37, 11, 29? (a) 32 (b) 37 (c) 11 (d) 29
  17. 17.Which number is the odd one out: 98, 13, 43, 41? (a) 98 (b) 13 (c) 43 (d) 41
  18. 18.Which number is the odd one out: 28, 73, 11, 41? (a) 28 (b) 73 (c) 11 (d) 41
  19. 19.Which number is the odd one out: 40, 67, 31, 37? (a) 40 (b) 67 (c) 31 (d) 37
  20. 20.Which number is the odd one out: 43, 17, 21, 31? (a) 43 (b) 17 (c) 21 (d) 31
  21. 21.Which number is the odd one out: 89, 84, 47, 71? (a) 89 (b) 84 (c) 47 (d) 71
  22. 22.Which number is the odd one out: 48, 67, 73, 79? (a) 48 (b) 67 (c) 73 (d) 79
  23. 23.Which number is the odd one out: 11, 73, 83, 35? (a) 11 (b) 73 (c) 83 (d) 35
  24. 24.Which number is the odd one out: 2, 62, 67, 97? (a) 2 (b) 62 (c) 67 (d) 97
  25. 25.Which number is the odd one out: 60, 40, 32, 8? (a) 60 (b) 40 (c) 32 (d) 8
  26. 26.Which number is the odd one out: 93, 3, 87, 61? (a) 93 (b) 3 (c) 87 (d) 61
  27. 27.Which number is the odd one out: 19, 61, 88, 41? (a) 19 (b) 61 (c) 88 (d) 41
  28. 28.Which number is the odd one out: 33, 17, 11, 29? (a) 33 (b) 17 (c) 11 (d) 29
  29. 29.Which number is the odd one out: 26, 23, 41, 89? (a) 26 (b) 23 (c) 41 (d) 89
  30. 30.Which number is the odd one out: 46, 2, 71, 94? (a) 46 (b) 2 (c) 71 (d) 94
  31. 31.Which number is the odd one out: 49, 19, 67, 41? (a) 49 (b) 19 (c) 67 (d) 41
  32. 32.Which number is the odd one out: 17, 83, 11, 85? (a) 17 (b) 83 (c) 11 (d) 85
  33. 33.Which number is the odd one out: 8, 35, 32, 56? (a) 8 (b) 35 (c) 32 (d) 56
  34. 34.Which number is the odd one out: 73, 97, 28, 7? (a) 73 (b) 97 (c) 28 (d) 7
  35. 35.Which number is the odd one out: 59, 67, 37, 4? (a) 59 (b) 67 (c) 37 (d) 4
  36. 36.Which number is the odd one out: 89, 47, 79, 99? (a) 89 (b) 47 (c) 79 (d) 99
  37. 37.Which number is the odd one out: 7, 19, 31, 21? (a) 7 (b) 19 (c) 31 (d) 21
  38. 38.Which number is the odd one out: 67, 3, 97, 90? (a) 67 (b) 3 (c) 97 (d) 90
  39. 39.Which number is the odd one out: 89, 19, 30, 31? (a) 89 (b) 19 (c) 30 (d) 31
  40. 40.Which number is the odd one out: 47, 71, 49, 89? (a) 47 (b) 71 (c) 49 (d) 89

Answer key

  1. 21
  2. 13
  3. 8
  4. 78
  5. 38
  6. 5
  7. 12
  8. 25
  9. 96
  10. 54
  11. 26
  12. 81
  13. 54
  14. 89
  15. 20
  16. 32
  17. 98
  18. 28
  19. 40
  20. 21
  21. 84
  22. 48
  23. 35
  24. 62
  25. 60
  26. 61
  27. 88
  28. 33
  29. 26
  30. 71
  31. 49
  32. 85
  33. 35
  34. 28
  35. 4
  36. 99
  37. 21
  38. 90
  39. 30
  40. 49

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