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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 106 · 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: 9, 41, 67, 37? (a) 9 (b) 41 (c) 67 (d) 37
  2. 2.Which number is the odd one out: 48, 61, 52, 96? (a) 48 (b) 61 (c) 52 (d) 96
  3. 3.Which number is the odd one out: 87, 41, 67, 71? (a) 87 (b) 41 (c) 67 (d) 71
  4. 4.Which number is the odd one out: 66, 48, 26, 96? (a) 66 (b) 48 (c) 26 (d) 96
  5. 5.Which number is the odd one out: 24, 48, 88, 50? (a) 24 (b) 48 (c) 88 (d) 50
  6. 6.Which number is the odd one out: 24, 96, 26, 8? (a) 24 (b) 96 (c) 26 (d) 8
  7. 7.Which number is the odd one out: 99, 89, 29, 61? (a) 99 (b) 89 (c) 29 (d) 61
  8. 8.Which number is the odd one out: 11, 67, 28, 37? (a) 11 (b) 67 (c) 28 (d) 37
  9. 9.Which number is the odd one out: 87, 69, 34, 51? (a) 87 (b) 69 (c) 34 (d) 51
  10. 10.Which number is the odd one out: 29, 83, 15, 19? (a) 29 (b) 83 (c) 15 (d) 19
  11. 11.Which number is the odd one out: 12, 52, 84, 91? (a) 12 (b) 52 (c) 84 (d) 91
  12. 12.Which number is the odd one out: 16, 97, 41, 19? (a) 16 (b) 97 (c) 41 (d) 19
  13. 13.Which number is the odd one out: 96, 36, 27, 81? (a) 96 (b) 36 (c) 27 (d) 81
  14. 14.Which number is the odd one out: 11, 67, 31, 39? (a) 11 (b) 67 (c) 31 (d) 39
  15. 15.Which number is the odd one out: 29, 23, 18, 27? (a) 29 (b) 23 (c) 18 (d) 27
  16. 16.Which number is the odd one out: 2, 61, 79, 50? (a) 2 (b) 61 (c) 79 (d) 50
  17. 17.Which number is the odd one out: 71, 13, 59, 26? (a) 71 (b) 13 (c) 59 (d) 26
  18. 18.Which number is the odd one out: 52, 71, 41, 11? (a) 52 (b) 71 (c) 41 (d) 11
  19. 19.Which number is the odd one out: 23, 30, 24, 80? (a) 23 (b) 30 (c) 24 (d) 80
  20. 20.Which number is the odd one out: 19, 46, 73, 11? (a) 19 (b) 46 (c) 73 (d) 11
  21. 21.Which number is the odd one out: 23, 62, 79, 97? (a) 23 (b) 62 (c) 79 (d) 97
  22. 22.Which number is the odd one out: 43, 98, 77, 17? (a) 43 (b) 98 (c) 77 (d) 17
  23. 23.Which number is the odd one out: 37, 60, 41, 67? (a) 37 (b) 60 (c) 41 (d) 67
  24. 24.Which number is the odd one out: 6, 73, 93, 71? (a) 6 (b) 73 (c) 93 (d) 71
  25. 25.Which number is the odd one out: 81, 36, 60, 9? (a) 81 (b) 36 (c) 60 (d) 9
  26. 26.Which number is the odd one out: 37, 71, 6, 3? (a) 37 (b) 71 (c) 6 (d) 3
  27. 27.Which number is the odd one out: 8, 12, 24, 32? (a) 8 (b) 12 (c) 24 (d) 32
  28. 28.Which number is the odd one out: 73, 97, 70, 67? (a) 73 (b) 97 (c) 70 (d) 67
  29. 29.Which number is the odd one out: 79, 72, 73, 23? (a) 79 (b) 72 (c) 73 (d) 23
  30. 30.Which number is the odd one out: 11, 13, 4, 71? (a) 11 (b) 13 (c) 4 (d) 71
  31. 31.Which number is the odd one out: 27, 43, 54, 18? (a) 27 (b) 43 (c) 54 (d) 18
  32. 32.Which number is the odd one out: 11, 67, 35, 70? (a) 11 (b) 67 (c) 35 (d) 70
  33. 33.Which number is the odd one out: 47, 16, 23, 83? (a) 47 (b) 16 (c) 23 (d) 83
  34. 34.Which number is the odd one out: 18, 67, 54, 78? (a) 18 (b) 67 (c) 54 (d) 78
  35. 35.Which number is the odd one out: 53, 47, 90, 87? (a) 53 (b) 47 (c) 90 (d) 87
  36. 36.Which number is the odd one out: 13, 8, 31, 11? (a) 13 (b) 8 (c) 31 (d) 11
  37. 37.Which number is the odd one out: 54, 43, 97, 23? (a) 54 (b) 43 (c) 97 (d) 23
  38. 38.Which number is the odd one out: 15, 75, 79, 95? (a) 15 (b) 75 (c) 79 (d) 95
  39. 39.Which number is the odd one out: 77, 99, 63, 27? (a) 77 (b) 99 (c) 63 (d) 27
  40. 40.Which number is the odd one out: 3, 73, 37, 90? (a) 3 (b) 73 (c) 37 (d) 90

Answer key

  1. 9
  2. 61
  3. 87
  4. 26
  5. 50
  6. 26
  7. 99
  8. 28
  9. 34
  10. 15
  11. 91
  12. 16
  13. 96
  14. 39
  15. 18
  16. 50
  17. 26
  18. 52
  19. 23
  20. 46
  21. 62
  22. 98
  23. 60
  24. 6
  25. 60
  26. 6
  27. 12
  28. 70
  29. 72
  30. 4
  31. 43
  32. 70
  33. 16
  34. 67
  35. 90
  36. 8
  37. 54
  38. 79
  39. 77
  40. 90

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