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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 475 · 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: 40, 20, 8, 34? (a) 40 (b) 20 (c) 8 (d) 34
  2. 2.Which number is the odd one out: 61, 19, 10, 23? (a) 61 (b) 19 (c) 10 (d) 23
  3. 3.Which number is the odd one out: 31, 48, 24, 8? (a) 31 (b) 48 (c) 24 (d) 8
  4. 4.Which number is the odd one out: 57, 17, 47, 89? (a) 57 (b) 17 (c) 47 (d) 89
  5. 5.Which number is the odd one out: 9, 81, 27, 59? (a) 9 (b) 81 (c) 27 (d) 59
  6. 6.Which number is the odd one out: 81, 25, 75, 65? (a) 81 (b) 25 (c) 75 (d) 65
  7. 7.Which number is the odd one out: 12, 60, 58, 30? (a) 12 (b) 60 (c) 58 (d) 30
  8. 8.Which number is the odd one out: 11, 75, 89, 53? (a) 11 (b) 75 (c) 89 (d) 53
  9. 9.Which number is the odd one out: 41, 97, 96, 17? (a) 41 (b) 97 (c) 96 (d) 17
  10. 10.Which number is the odd one out: 32, 92, 40, 55? (a) 32 (b) 92 (c) 40 (d) 55
  11. 11.Which number is the odd one out: 19, 46, 43, 59? (a) 19 (b) 46 (c) 43 (d) 59
  12. 12.Which number is the odd one out: 92, 24, 8, 48? (a) 92 (b) 24 (c) 8 (d) 48
  13. 13.Which number is the odd one out: 53, 31, 6, 83? (a) 53 (b) 31 (c) 6 (d) 83
  14. 14.Which number is the odd one out: 17, 11, 70, 31? (a) 17 (b) 11 (c) 70 (d) 31
  15. 15.Which number is the odd one out: 61, 79, 19, 48? (a) 61 (b) 79 (c) 19 (d) 48
  16. 16.Which number is the odd one out: 83, 94, 71, 41? (a) 83 (b) 94 (c) 71 (d) 41
  17. 17.Which number is the odd one out: 83, 63, 47, 29? (a) 83 (b) 63 (c) 47 (d) 29
  18. 18.Which number is the odd one out: 78, 31, 11, 43? (a) 78 (b) 31 (c) 11 (d) 43
  19. 19.Which number is the odd one out: 41, 83, 7, 21? (a) 41 (b) 83 (c) 7 (d) 21
  20. 20.Which number is the odd one out: 24, 83, 11, 67? (a) 24 (b) 83 (c) 11 (d) 67
  21. 21.Which number is the odd one out: 84, 83, 12, 14? (a) 84 (b) 83 (c) 12 (d) 14
  22. 22.Which number is the odd one out: 17, 31, 80, 2? (a) 17 (b) 31 (c) 80 (d) 2
  23. 23.Which number is the odd one out: 72, 88, 54, 8? (a) 72 (b) 88 (c) 54 (d) 8
  24. 24.Which number is the odd one out: 45, 22, 10, 62? (a) 45 (b) 22 (c) 10 (d) 62
  25. 25.Which number is the odd one out: 73, 35, 13, 31? (a) 73 (b) 35 (c) 13 (d) 31
  26. 26.Which number is the odd one out: 99, 80, 25, 9? (a) 99 (b) 80 (c) 25 (d) 9
  27. 27.Which number is the odd one out: 61, 2, 46, 79? (a) 61 (b) 2 (c) 46 (d) 79
  28. 28.Which number is the odd one out: 37, 30, 5, 53? (a) 37 (b) 30 (c) 5 (d) 53
  29. 29.Which number is the odd one out: 19, 53, 61, 24? (a) 19 (b) 53 (c) 61 (d) 24
  30. 30.Which number is the odd one out: 84, 66, 12, 35? (a) 84 (b) 66 (c) 12 (d) 35
  31. 31.Which number is the odd one out: 23, 93, 89, 71? (a) 23 (b) 93 (c) 89 (d) 71
  32. 32.Which number is the odd one out: 61, 46, 43, 83? (a) 61 (b) 46 (c) 43 (d) 83
  33. 33.Which number is the odd one out: 47, 19, 45, 11? (a) 47 (b) 19 (c) 45 (d) 11
  34. 34.Which number is the odd one out: 97, 59, 66, 83? (a) 97 (b) 59 (c) 66 (d) 83
  35. 35.Which number is the odd one out: 86, 62, 94, 3? (a) 86 (b) 62 (c) 94 (d) 3
  36. 36.Which number is the odd one out: 77, 29, 61, 43? (a) 77 (b) 29 (c) 61 (d) 43
  37. 37.Which number is the odd one out: 8, 60, 66, 30? (a) 8 (b) 60 (c) 66 (d) 30
  38. 38.Which number is the odd one out: 97, 86, 79, 11? (a) 97 (b) 86 (c) 79 (d) 11
  39. 39.Which number is the odd one out: 77, 21, 3, 91? (a) 77 (b) 21 (c) 3 (d) 91
  40. 40.Which number is the odd one out: 71, 61, 24, 59? (a) 71 (b) 61 (c) 24 (d) 59

Answer key

  1. 34
  2. 10
  3. 31
  4. 57
  5. 59
  6. 81
  7. 58
  8. 75
  9. 96
  10. 55
  11. 46
  12. 92
  13. 6
  14. 70
  15. 48
  16. 94
  17. 63
  18. 78
  19. 21
  20. 24
  21. 83
  22. 80
  23. 54
  24. 45
  25. 35
  26. 80
  27. 46
  28. 30
  29. 24
  30. 35
  31. 93
  32. 46
  33. 45
  34. 66
  35. 3
  36. 77
  37. 8
  38. 86
  39. 3
  40. 24

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