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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 821 · 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: 19, 8, 11, 29? (a) 19 (b) 8 (c) 11 (d) 29
  2. 2.Which number is the odd one out: 59, 97, 38, 83? (a) 59 (b) 97 (c) 38 (d) 83
  3. 3.Which number is the odd one out: 67, 12, 97, 47? (a) 67 (b) 12 (c) 97 (d) 47
  4. 4.Which number is the odd one out: 8, 96, 80, 30? (a) 8 (b) 96 (c) 80 (d) 30
  5. 5.Which number is the odd one out: 81, 69, 25, 45? (a) 81 (b) 69 (c) 25 (d) 45
  6. 6.Which number is the odd one out: 65, 18, 66, 54? (a) 65 (b) 18 (c) 66 (d) 54
  7. 7.Which number is the odd one out: 55, 24, 48, 40? (a) 55 (b) 24 (c) 48 (d) 40
  8. 8.Which number is the odd one out: 49, 29, 41, 59? (a) 49 (b) 29 (c) 41 (d) 59
  9. 9.Which number is the odd one out: 2, 47, 23, 37? (a) 2 (b) 47 (c) 23 (d) 37
  10. 10.Which number is the odd one out: 96, 18, 24, 9? (a) 96 (b) 18 (c) 24 (d) 9
  11. 11.Which number is the odd one out: 29, 73, 61, 48? (a) 29 (b) 73 (c) 61 (d) 48
  12. 12.Which number is the odd one out: 42, 43, 17, 37? (a) 42 (b) 43 (c) 17 (d) 37
  13. 13.Which number is the odd one out: 8, 12, 89, 96? (a) 8 (b) 12 (c) 89 (d) 96
  14. 14.Which number is the odd one out: 96, 8, 31, 6? (a) 96 (b) 8 (c) 31 (d) 6
  15. 15.Which number is the odd one out: 61, 92, 17, 2? (a) 61 (b) 92 (c) 17 (d) 2
  16. 16.Which number is the odd one out: 97, 17, 53, 93? (a) 97 (b) 17 (c) 53 (d) 93
  17. 17.Which number is the odd one out: 81, 34, 99, 9? (a) 81 (b) 34 (c) 99 (d) 9
  18. 18.Which number is the odd one out: 61, 19, 5, 55? (a) 61 (b) 19 (c) 5 (d) 55
  19. 19.Which number is the odd one out: 83, 28, 47, 67? (a) 83 (b) 28 (c) 47 (d) 67
  20. 20.Which number is the odd one out: 16, 17, 41, 23? (a) 16 (b) 17 (c) 41 (d) 23
  21. 21.Which number is the odd one out: 50, 15, 85, 6? (a) 50 (b) 15 (c) 85 (d) 6
  22. 22.Which number is the odd one out: 97, 29, 23, 48? (a) 97 (b) 29 (c) 23 (d) 48
  23. 23.Which number is the odd one out: 89, 79, 50, 19? (a) 89 (b) 79 (c) 50 (d) 19
  24. 24.Which number is the odd one out: 97, 24, 8, 96? (a) 97 (b) 24 (c) 8 (d) 96
  25. 25.Which number is the odd one out: 88, 79, 17, 71? (a) 88 (b) 79 (c) 17 (d) 71
  26. 26.Which number is the odd one out: 94, 71, 79, 43? (a) 94 (b) 71 (c) 79 (d) 43
  27. 27.Which number is the odd one out: 11, 19, 67, 70? (a) 11 (b) 19 (c) 67 (d) 70
  28. 28.Which number is the odd one out: 68, 8, 18, 72? (a) 68 (b) 8 (c) 18 (d) 72
  29. 29.Which number is the odd one out: 40, 13, 80, 20? (a) 40 (b) 13 (c) 80 (d) 20
  30. 30.Which number is the odd one out: 59, 29, 62, 23? (a) 59 (b) 29 (c) 62 (d) 23
  31. 31.Which number is the odd one out: 29, 71, 67, 10? (a) 29 (b) 71 (c) 67 (d) 10
  32. 32.Which number is the odd one out: 89, 53, 78, 11? (a) 89 (b) 53 (c) 78 (d) 11
  33. 33.Which number is the odd one out: 48, 22, 12, 96? (a) 48 (b) 22 (c) 12 (d) 96
  34. 34.Which number is the odd one out: 96, 24, 34, 19? (a) 96 (b) 24 (c) 34 (d) 19
  35. 35.Which number is the odd one out: 20, 40, 82, 80? (a) 20 (b) 40 (c) 82 (d) 80
  36. 36.Which number is the odd one out: 43, 29, 36, 2? (a) 43 (b) 29 (c) 36 (d) 2
  37. 37.Which number is the odd one out: 53, 83, 59, 69? (a) 53 (b) 83 (c) 59 (d) 69
  38. 38.Which number is the odd one out: 29, 24, 96, 32? (a) 29 (b) 24 (c) 96 (d) 32
  39. 39.Which number is the odd one out: 23, 53, 7, 14? (a) 23 (b) 53 (c) 7 (d) 14
  40. 40.Which number is the odd one out: 29, 71, 28, 2? (a) 29 (b) 71 (c) 28 (d) 2

Answer key

  1. 8
  2. 38
  3. 12
  4. 30
  5. 25
  6. 65
  7. 55
  8. 49
  9. 2
  10. 9
  11. 48
  12. 42
  13. 89
  14. 31
  15. 92
  16. 93
  17. 34
  18. 55
  19. 28
  20. 16
  21. 6
  22. 48
  23. 50
  24. 97
  25. 88
  26. 94
  27. 70
  28. 18
  29. 13
  30. 62
  31. 10
  32. 78
  33. 22
  34. 19
  35. 82
  36. 36
  37. 69
  38. 29
  39. 14
  40. 28

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