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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 225 · 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: 72, 80, 90, 32? (a) 72 (b) 80 (c) 90 (d) 32
  2. 2.Which number is the odd one out: 11, 61, 42, 53? (a) 11 (b) 61 (c) 42 (d) 53
  3. 3.Which number is the odd one out: 59, 97, 43, 92? (a) 59 (b) 97 (c) 43 (d) 92
  4. 4.Which number is the odd one out: 17, 43, 90, 97? (a) 17 (b) 43 (c) 90 (d) 97
  5. 5.Which number is the odd one out: 97, 24, 61, 51? (a) 97 (b) 24 (c) 61 (d) 51
  6. 6.Which number is the odd one out: 80, 93, 21, 77? (a) 80 (b) 93 (c) 21 (d) 77
  7. 7.Which number is the odd one out: 47, 2, 61, 76? (a) 47 (b) 2 (c) 61 (d) 76
  8. 8.Which number is the odd one out: 52, 11, 80, 40? (a) 52 (b) 11 (c) 80 (d) 40
  9. 9.Which number is the odd one out: 50, 85, 44, 55? (a) 50 (b) 85 (c) 44 (d) 55
  10. 10.Which number is the odd one out: 82, 65, 85, 10? (a) 82 (b) 65 (c) 85 (d) 10
  11. 11.Which number is the odd one out: 83, 18, 30, 90? (a) 83 (b) 18 (c) 30 (d) 90
  12. 12.Which number is the odd one out: 11, 10, 61, 47? (a) 11 (b) 10 (c) 61 (d) 47
  13. 13.Which number is the odd one out: 47, 37, 46, 73? (a) 47 (b) 37 (c) 46 (d) 73
  14. 14.Which number is the odd one out: 81, 5, 27, 9? (a) 81 (b) 5 (c) 27 (d) 9
  15. 15.Which number is the odd one out: 13, 58, 23, 83? (a) 13 (b) 58 (c) 23 (d) 83
  16. 16.Which number is the odd one out: 26, 25, 44, 68? (a) 26 (b) 25 (c) 44 (d) 68
  17. 17.Which number is the odd one out: 42, 17, 23, 19? (a) 42 (b) 17 (c) 23 (d) 19
  18. 18.Which number is the odd one out: 75, 29, 61, 3? (a) 75 (b) 29 (c) 61 (d) 3
  19. 19.Which number is the odd one out: 45, 67, 89, 31? (a) 45 (b) 67 (c) 89 (d) 31
  20. 20.Which number is the odd one out: 28, 19, 11, 73? (a) 28 (b) 19 (c) 11 (d) 73
  21. 21.Which number is the odd one out: 58, 50, 55, 46? (a) 58 (b) 50 (c) 55 (d) 46
  22. 22.Which number is the odd one out: 29, 55, 17, 90? (a) 29 (b) 55 (c) 17 (d) 90
  23. 23.Which number is the odd one out: 11, 16, 73, 31? (a) 11 (b) 16 (c) 73 (d) 31
  24. 24.Which number is the odd one out: 81, 9, 76, 4? (a) 81 (b) 9 (c) 76 (d) 4
  25. 25.Which number is the odd one out: 6, 96, 8, 66? (a) 6 (b) 96 (c) 8 (d) 66
  26. 26.Which number is the odd one out: 47, 34, 89, 79? (a) 47 (b) 34 (c) 89 (d) 79
  27. 27.Which number is the odd one out: 10, 40, 49, 56? (a) 10 (b) 40 (c) 49 (d) 56
  28. 28.Which number is the odd one out: 43, 37, 77, 7? (a) 43 (b) 37 (c) 77 (d) 7
  29. 29.Which number is the odd one out: 22, 2, 83, 13? (a) 22 (b) 2 (c) 83 (d) 13
  30. 30.Which number is the odd one out: 43, 41, 17, 6? (a) 43 (b) 41 (c) 17 (d) 6
  31. 31.Which number is the odd one out: 17, 61, 71, 10? (a) 17 (b) 61 (c) 71 (d) 10
  32. 32.Which number is the odd one out: 79, 89, 82, 13? (a) 79 (b) 89 (c) 82 (d) 13
  33. 33.Which number is the odd one out: 56, 8, 63, 88? (a) 56 (b) 8 (c) 63 (d) 88
  34. 34.Which number is the odd one out: 48, 36, 81, 27? (a) 48 (b) 36 (c) 81 (d) 27
  35. 35.Which number is the odd one out: 35, 96, 12, 48? (a) 35 (b) 96 (c) 12 (d) 48
  36. 36.Which number is the odd one out: 17, 71, 79, 30? (a) 17 (b) 71 (c) 79 (d) 30
  37. 37.Which number is the odd one out: 67, 59, 41, 27? (a) 67 (b) 59 (c) 41 (d) 27
  38. 38.Which number is the odd one out: 63, 73, 79, 43? (a) 63 (b) 73 (c) 79 (d) 43
  39. 39.Which number is the odd one out: 67, 2, 62, 31? (a) 67 (b) 2 (c) 62 (d) 31
  40. 40.Which number is the odd one out: 61, 11, 24, 97? (a) 61 (b) 11 (c) 24 (d) 97

Answer key

  1. 90
  2. 42
  3. 92
  4. 90
  5. 24
  6. 80
  7. 76
  8. 11
  9. 44
  10. 82
  11. 83
  12. 10
  13. 46
  14. 5
  15. 58
  16. 25
  17. 42
  18. 75
  19. 45
  20. 28
  21. 55
  22. 90
  23. 16
  24. 76
  25. 8
  26. 34
  27. 49
  28. 77
  29. 22
  30. 6
  31. 10
  32. 82
  33. 63
  34. 48
  35. 35
  36. 30
  37. 27
  38. 63
  39. 62
  40. 24

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