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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 333 · 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, 67, 73, 81? (a) 19 (b) 67 (c) 73 (d) 81
  2. 2.Which number is the odd one out: 72, 61, 29, 13? (a) 72 (b) 61 (c) 29 (d) 13
  3. 3.Which number is the odd one out: 59, 71, 47, 18? (a) 59 (b) 71 (c) 47 (d) 18
  4. 4.Which number is the odd one out: 8, 24, 48, 28? (a) 8 (b) 24 (c) 48 (d) 28
  5. 5.Which number is the odd one out: 83, 69, 61, 59? (a) 83 (b) 69 (c) 61 (d) 59
  6. 6.Which number is the odd one out: 9, 47, 97, 17? (a) 9 (b) 47 (c) 97 (d) 17
  7. 7.Which number is the odd one out: 65, 10, 55, 98? (a) 65 (b) 10 (c) 55 (d) 98
  8. 8.Which number is the odd one out: 43, 2, 18, 29? (a) 43 (b) 2 (c) 18 (d) 29
  9. 9.Which number is the odd one out: 31, 46, 83, 61? (a) 31 (b) 46 (c) 83 (d) 61
  10. 10.Which number is the odd one out: 61, 13, 83, 84? (a) 61 (b) 13 (c) 83 (d) 84
  11. 11.Which number is the odd one out: 14, 60, 21, 91? (a) 14 (b) 60 (c) 21 (d) 91
  12. 12.Which number is the odd one out: 29, 71, 97, 14? (a) 29 (b) 71 (c) 97 (d) 14
  13. 13.Which number is the odd one out: 36, 8, 64, 96? (a) 36 (b) 8 (c) 64 (d) 96
  14. 14.Which number is the odd one out: 48, 24, 99, 18? (a) 48 (b) 24 (c) 99 (d) 18
  15. 15.Which number is the odd one out: 29, 5, 55, 34? (a) 29 (b) 5 (c) 55 (d) 34
  16. 16.Which number is the odd one out: 48, 83, 24, 66? (a) 48 (b) 83 (c) 24 (d) 66
  17. 17.Which number is the odd one out: 38, 17, 89, 59? (a) 38 (b) 17 (c) 89 (d) 59
  18. 18.Which number is the odd one out: 37, 75, 79, 61? (a) 37 (b) 75 (c) 79 (d) 61
  19. 19.Which number is the odd one out: 96, 89, 71, 67? (a) 96 (b) 89 (c) 71 (d) 67
  20. 20.Which number is the odd one out: 29, 99, 31, 97? (a) 29 (b) 99 (c) 31 (d) 97
  21. 21.Which number is the odd one out: 83, 97, 30, 3? (a) 83 (b) 97 (c) 30 (d) 3
  22. 22.Which number is the odd one out: 32, 2, 41, 83? (a) 32 (b) 2 (c) 41 (d) 83
  23. 23.Which number is the odd one out: 51, 9, 81, 99? (a) 51 (b) 9 (c) 81 (d) 99
  24. 24.Which number is the odd one out: 2, 79, 39, 69? (a) 2 (b) 79 (c) 39 (d) 69
  25. 25.Which number is the odd one out: 96, 24, 6, 53? (a) 96 (b) 24 (c) 6 (d) 53
  26. 26.Which number is the odd one out: 54, 72, 48, 47? (a) 54 (b) 72 (c) 48 (d) 47
  27. 27.Which number is the odd one out: 2, 11, 60, 59? (a) 2 (b) 11 (c) 60 (d) 59
  28. 28.Which number is the odd one out: 86, 17, 67, 79? (a) 86 (b) 17 (c) 67 (d) 79
  29. 29.Which number is the odd one out: 39, 13, 17, 41? (a) 39 (b) 13 (c) 17 (d) 41
  30. 30.Which number is the odd one out: 68, 35, 96, 24? (a) 68 (b) 35 (c) 96 (d) 24
  31. 31.Which number is the odd one out: 3, 37, 12, 47? (a) 3 (b) 37 (c) 12 (d) 47
  32. 32.Which number is the odd one out: 9, 80, 64, 81? (a) 9 (b) 80 (c) 64 (d) 81
  33. 33.Which number is the odd one out: 80, 50, 34, 40? (a) 80 (b) 50 (c) 34 (d) 40
  34. 34.Which number is the odd one out: 53, 71, 6, 73? (a) 53 (b) 71 (c) 6 (d) 73
  35. 35.Which number is the odd one out: 24, 42, 48, 91? (a) 24 (b) 42 (c) 48 (d) 91
  36. 36.Which number is the odd one out: 71, 47, 82, 37? (a) 71 (b) 47 (c) 82 (d) 37
  37. 37.Which number is the odd one out: 73, 16, 71, 31? (a) 73 (b) 16 (c) 71 (d) 31
  38. 38.Which number is the odd one out: 79, 71, 3, 84? (a) 79 (b) 71 (c) 3 (d) 84
  39. 39.Which number is the odd one out: 8, 62, 88, 76? (a) 8 (b) 62 (c) 88 (d) 76
  40. 40.Which number is the odd one out: 54, 78, 15, 18? (a) 54 (b) 78 (c) 15 (d) 18

Answer key

  1. 81
  2. 72
  3. 18
  4. 28
  5. 69
  6. 9
  7. 98
  8. 18
  9. 46
  10. 84
  11. 60
  12. 14
  13. 36
  14. 99
  15. 34
  16. 83
  17. 38
  18. 75
  19. 96
  20. 99
  21. 30
  22. 32
  23. 51
  24. 2
  25. 53
  26. 47
  27. 60
  28. 86
  29. 39
  30. 35
  31. 12
  32. 80
  33. 34
  34. 6
  35. 91
  36. 82
  37. 16
  38. 84
  39. 62
  40. 15

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