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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 712 · 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: 53, 73, 65, 13? (a) 53 (b) 73 (c) 65 (d) 13
  2. 2.Which number is the odd one out: 17, 12, 53, 79? (a) 17 (b) 12 (c) 53 (d) 79
  3. 3.Which number is the odd one out: 60, 73, 17, 67? (a) 60 (b) 73 (c) 17 (d) 67
  4. 4.Which number is the odd one out: 74, 2, 41, 13? (a) 74 (b) 2 (c) 41 (d) 13
  5. 5.Which number is the odd one out: 67, 31, 73, 18? (a) 67 (b) 31 (c) 73 (d) 18
  6. 6.Which number is the odd one out: 16, 4, 64, 83? (a) 16 (b) 4 (c) 64 (d) 83
  7. 7.Which number is the odd one out: 92, 85, 70, 35? (a) 92 (b) 85 (c) 70 (d) 35
  8. 8.Which number is the odd one out: 45, 90, 99, 84? (a) 45 (b) 90 (c) 99 (d) 84
  9. 9.Which number is the odd one out: 41, 37, 83, 10? (a) 41 (b) 37 (c) 83 (d) 10
  10. 10.Which number is the odd one out: 47, 18, 37, 67? (a) 47 (b) 18 (c) 37 (d) 67
  11. 11.Which number is the odd one out: 50, 76, 44, 5? (a) 50 (b) 76 (c) 44 (d) 5
  12. 12.Which number is the odd one out: 83, 17, 26, 79? (a) 83 (b) 17 (c) 26 (d) 79
  13. 13.Which number is the odd one out: 24, 61, 48, 96? (a) 24 (b) 61 (c) 48 (d) 96
  14. 14.Which number is the odd one out: 37, 83, 71, 58? (a) 37 (b) 83 (c) 71 (d) 58
  15. 15.Which number is the odd one out: 71, 37, 91, 59? (a) 71 (b) 37 (c) 91 (d) 59
  16. 16.Which number is the odd one out: 15, 3, 47, 11? (a) 15 (b) 3 (c) 47 (d) 11
  17. 17.Which number is the odd one out: 67, 64, 47, 83? (a) 67 (b) 64 (c) 47 (d) 83
  18. 18.Which number is the odd one out: 71, 59, 73, 52? (a) 71 (b) 59 (c) 73 (d) 52
  19. 19.Which number is the odd one out: 71, 17, 33, 73? (a) 71 (b) 17 (c) 33 (d) 73
  20. 20.Which number is the odd one out: 80, 10, 30, 24? (a) 80 (b) 10 (c) 30 (d) 24
  21. 21.Which number is the odd one out: 6, 32, 8, 52? (a) 6 (b) 32 (c) 8 (d) 52
  22. 22.Which number is the odd one out: 59, 17, 40, 43? (a) 59 (b) 17 (c) 40 (d) 43
  23. 23.Which number is the odd one out: 40, 13, 19, 29? (a) 40 (b) 13 (c) 19 (d) 29
  24. 24.Which number is the odd one out: 61, 90, 45, 54? (a) 61 (b) 90 (c) 45 (d) 54
  25. 25.Which number is the odd one out: 23, 14, 89, 7? (a) 23 (b) 14 (c) 89 (d) 7
  26. 26.Which number is the odd one out: 14, 42, 98, 24? (a) 14 (b) 42 (c) 98 (d) 24
  27. 27.Which number is the odd one out: 58, 61, 59, 73? (a) 58 (b) 61 (c) 59 (d) 73
  28. 28.Which number is the odd one out: 9, 99, 8, 81? (a) 9 (b) 99 (c) 8 (d) 81
  29. 29.Which number is the odd one out: 84, 66, 6, 56? (a) 84 (b) 66 (c) 6 (d) 56
  30. 30.Which number is the odd one out: 43, 11, 42, 37? (a) 43 (b) 11 (c) 42 (d) 37
  31. 31.Which number is the odd one out: 73, 32, 53, 17? (a) 73 (b) 32 (c) 53 (d) 17
  32. 32.Which number is the odd one out: 99, 9, 81, 19? (a) 99 (b) 9 (c) 81 (d) 19
  33. 33.Which number is the odd one out: 69, 59, 13, 71? (a) 69 (b) 59 (c) 13 (d) 71
  34. 34.Which number is the odd one out: 77, 15, 35, 21? (a) 77 (b) 15 (c) 35 (d) 21
  35. 35.Which number is the odd one out: 89, 19, 23, 28? (a) 89 (b) 19 (c) 23 (d) 28
  36. 36.Which number is the odd one out: 41, 47, 72, 23? (a) 41 (b) 47 (c) 72 (d) 23
  37. 37.Which number is the odd one out: 11, 89, 84, 17? (a) 11 (b) 89 (c) 84 (d) 17
  38. 38.Which number is the odd one out: 70, 59, 47, 17? (a) 70 (b) 59 (c) 47 (d) 17
  39. 39.Which number is the odd one out: 66, 84, 88, 42? (a) 66 (b) 84 (c) 88 (d) 42
  40. 40.Which number is the odd one out: 39, 31, 47, 37? (a) 39 (b) 31 (c) 47 (d) 37

Answer key

  1. 65
  2. 12
  3. 60
  4. 74
  5. 18
  6. 83
  7. 92
  8. 84
  9. 10
  10. 18
  11. 5
  12. 26
  13. 61
  14. 58
  15. 91
  16. 15
  17. 64
  18. 52
  19. 33
  20. 24
  21. 6
  22. 40
  23. 40
  24. 61
  25. 14
  26. 24
  27. 58
  28. 8
  29. 56
  30. 42
  31. 32
  32. 19
  33. 69
  34. 15
  35. 28
  36. 72
  37. 84
  38. 70
  39. 88
  40. 39

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