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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 10 · 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: 18, 54, 27, 73? (a) 18 (b) 54 (c) 27 (d) 73
  2. 2.Which number is the odd one out: 34, 59, 71, 53? (a) 34 (b) 59 (c) 71 (d) 53
  3. 3.Which number is the odd one out: 88, 73, 19, 37? (a) 88 (b) 73 (c) 19 (d) 37
  4. 4.Which number is the odd one out: 19, 31, 29, 26? (a) 19 (b) 31 (c) 29 (d) 26
  5. 5.Which number is the odd one out: 30, 11, 47, 73? (a) 30 (b) 11 (c) 47 (d) 73
  6. 6.Which number is the odd one out: 47, 43, 60, 89? (a) 47 (b) 43 (c) 60 (d) 89
  7. 7.Which number is the odd one out: 84, 60, 35, 77? (a) 84 (b) 60 (c) 35 (d) 77
  8. 8.Which number is the odd one out: 59, 53, 90, 47? (a) 59 (b) 53 (c) 90 (d) 47
  9. 9.Which number is the odd one out: 12, 2, 23, 43? (a) 12 (b) 2 (c) 23 (d) 43
  10. 10.Which number is the odd one out: 6, 66, 19, 86? (a) 6 (b) 66 (c) 19 (d) 86
  11. 11.Which number is the odd one out: 19, 40, 59, 71? (a) 19 (b) 40 (c) 59 (d) 71
  12. 12.Which number is the odd one out: 48, 37, 13, 19? (a) 48 (b) 37 (c) 13 (d) 19
  13. 13.Which number is the odd one out: 64, 28, 9, 56? (a) 64 (b) 28 (c) 9 (d) 56
  14. 14.Which number is the odd one out: 21, 91, 49, 9? (a) 21 (b) 91 (c) 49 (d) 9
  15. 15.Which number is the odd one out: 78, 23, 89, 3? (a) 78 (b) 23 (c) 89 (d) 3
  16. 16.Which number is the odd one out: 99, 69, 63, 42? (a) 99 (b) 69 (c) 63 (d) 42
  17. 17.Which number is the odd one out: 79, 43, 32, 29? (a) 79 (b) 43 (c) 32 (d) 29
  18. 18.Which number is the odd one out: 47, 53, 58, 89? (a) 47 (b) 53 (c) 58 (d) 89
  19. 19.Which number is the odd one out: 37, 83, 13, 28? (a) 37 (b) 83 (c) 13 (d) 28
  20. 20.Which number is the odd one out: 13, 22, 19, 59? (a) 13 (b) 22 (c) 19 (d) 59
  21. 21.Which number is the odd one out: 7, 37, 2, 70? (a) 7 (b) 37 (c) 2 (d) 70
  22. 22.Which number is the odd one out: 18, 12, 52, 68? (a) 18 (b) 12 (c) 52 (d) 68
  23. 23.Which number is the odd one out: 30, 61, 83, 47? (a) 30 (b) 61 (c) 83 (d) 47
  24. 24.Which number is the odd one out: 73, 17, 55, 61? (a) 73 (b) 17 (c) 55 (d) 61
  25. 25.Which number is the odd one out: 3, 47, 4, 69? (a) 3 (b) 47 (c) 4 (d) 69
  26. 26.Which number is the odd one out: 7, 4, 16, 64? (a) 7 (b) 4 (c) 16 (d) 64
  27. 27.Which number is the odd one out: 67, 97, 5, 10? (a) 67 (b) 97 (c) 5 (d) 10
  28. 28.Which number is the odd one out: 89, 97, 3, 96? (a) 89 (b) 97 (c) 3 (d) 96
  29. 29.Which number is the odd one out: 97, 19, 78, 2? (a) 97 (b) 19 (c) 78 (d) 2
  30. 30.Which number is the odd one out: 75, 47, 67, 11? (a) 75 (b) 47 (c) 67 (d) 11
  31. 31.Which number is the odd one out: 13, 24, 41, 67? (a) 13 (b) 24 (c) 41 (d) 67
  32. 32.Which number is the odd one out: 83, 78, 29, 51? (a) 83 (b) 78 (c) 29 (d) 51
  33. 33.Which number is the odd one out: 24, 96, 32, 31? (a) 24 (b) 96 (c) 32 (d) 31
  34. 34.Which number is the odd one out: 20, 17, 61, 73? (a) 20 (b) 17 (c) 61 (d) 73
  35. 35.Which number is the odd one out: 37, 43, 78, 41? (a) 37 (b) 43 (c) 78 (d) 41
  36. 36.Which number is the odd one out: 83, 15, 75, 2? (a) 83 (b) 15 (c) 75 (d) 2
  37. 37.Which number is the odd one out: 27, 67, 59, 17? (a) 27 (b) 67 (c) 59 (d) 17
  38. 38.Which number is the odd one out: 54, 2, 47, 11? (a) 54 (b) 2 (c) 47 (d) 11
  39. 39.Which number is the odd one out: 10, 57, 50, 62? (a) 10 (b) 57 (c) 50 (d) 62
  40. 40.Which number is the odd one out: 42, 89, 61, 2? (a) 42 (b) 89 (c) 61 (d) 2

Answer key

  1. 73
  2. 34
  3. 88
  4. 26
  5. 30
  6. 60
  7. 60
  8. 90
  9. 12
  10. 19
  11. 40
  12. 48
  13. 9
  14. 9
  15. 78
  16. 42
  17. 32
  18. 58
  19. 28
  20. 22
  21. 70
  22. 18
  23. 30
  24. 55
  25. 4
  26. 7
  27. 10
  28. 96
  29. 78
  30. 75
  31. 24
  32. 78
  33. 31
  34. 20
  35. 78
  36. 2
  37. 27
  38. 54
  39. 57
  40. 42

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