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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 742 · 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: 47, 23, 82, 43? (a) 47 (b) 23 (c) 82 (d) 43
  2. 2.Which number is the odd one out: 72, 30, 90, 8? (a) 72 (b) 30 (c) 90 (d) 8
  3. 3.Which number is the odd one out: 62, 74, 26, 59? (a) 62 (b) 74 (c) 26 (d) 59
  4. 4.Which number is the odd one out: 80, 89, 11, 59? (a) 80 (b) 89 (c) 11 (d) 59
  5. 5.Which number is the odd one out: 8, 48, 24, 74? (a) 8 (b) 48 (c) 24 (d) 74
  6. 6.Which number is the odd one out: 17, 51, 13, 11? (a) 17 (b) 51 (c) 13 (d) 11
  7. 7.Which number is the odd one out: 19, 56, 73, 43? (a) 19 (b) 56 (c) 73 (d) 43
  8. 8.Which number is the odd one out: 36, 10, 85, 25? (a) 36 (b) 10 (c) 85 (d) 25
  9. 9.Which number is the odd one out: 71, 32, 48, 24? (a) 71 (b) 32 (c) 48 (d) 24
  10. 10.Which number is the odd one out: 33, 82, 94, 22? (a) 33 (b) 82 (c) 94 (d) 22
  11. 11.Which number is the odd one out: 79, 23, 11, 32? (a) 79 (b) 23 (c) 11 (d) 32
  12. 12.Which number is the odd one out: 47, 54, 73, 19? (a) 47 (b) 54 (c) 73 (d) 19
  13. 13.Which number is the odd one out: 23, 48, 59, 29? (a) 23 (b) 48 (c) 59 (d) 29
  14. 14.Which number is the odd one out: 24, 57, 96, 12? (a) 24 (b) 57 (c) 96 (d) 12
  15. 15.Which number is the odd one out: 43, 42, 71, 59? (a) 43 (b) 42 (c) 71 (d) 59
  16. 16.Which number is the odd one out: 29, 47, 97, 91? (a) 29 (b) 47 (c) 97 (d) 91
  17. 17.Which number is the odd one out: 11, 44, 2, 29? (a) 11 (b) 44 (c) 2 (d) 29
  18. 18.Which number is the odd one out: 16, 6, 64, 96? (a) 16 (b) 6 (c) 64 (d) 96
  19. 19.Which number is the odd one out: 44, 41, 61, 59? (a) 44 (b) 41 (c) 61 (d) 59
  20. 20.Which number is the odd one out: 3, 60, 2, 89? (a) 3 (b) 60 (c) 2 (d) 89
  21. 21.Which number is the odd one out: 36, 37, 29, 17? (a) 36 (b) 37 (c) 29 (d) 17
  22. 22.Which number is the odd one out: 79, 66, 73, 11? (a) 79 (b) 66 (c) 73 (d) 11
  23. 23.Which number is the odd one out: 18, 27, 75, 54? (a) 18 (b) 27 (c) 75 (d) 54
  24. 24.Which number is the odd one out: 61, 71, 59, 9? (a) 61 (b) 71 (c) 59 (d) 9
  25. 25.Which number is the odd one out: 11, 47, 3, 75? (a) 11 (b) 47 (c) 3 (d) 75
  26. 26.Which number is the odd one out: 7, 98, 31, 47? (a) 7 (b) 98 (c) 31 (d) 47
  27. 27.Which number is the odd one out: 29, 65, 11, 13? (a) 29 (b) 65 (c) 11 (d) 13
  28. 28.Which number is the odd one out: 13, 61, 85, 40? (a) 13 (b) 61 (c) 85 (d) 40
  29. 29.Which number is the odd one out: 24, 84, 8, 91? (a) 24 (b) 84 (c) 8 (d) 91
  30. 30.Which number is the odd one out: 67, 82, 23, 13? (a) 67 (b) 82 (c) 23 (d) 13
  31. 31.Which number is the odd one out: 15, 97, 11, 19? (a) 15 (b) 97 (c) 11 (d) 19
  32. 32.Which number is the odd one out: 55, 65, 10, 78? (a) 55 (b) 65 (c) 10 (d) 78
  33. 33.Which number is the odd one out: 43, 73, 71, 52? (a) 43 (b) 73 (c) 71 (d) 52
  34. 34.Which number is the odd one out: 66, 6, 78, 8? (a) 66 (b) 6 (c) 78 (d) 8
  35. 35.Which number is the odd one out: 9, 81, 27, 33? (a) 9 (b) 81 (c) 27 (d) 33
  36. 36.Which number is the odd one out: 19, 31, 47, 98? (a) 19 (b) 31 (c) 47 (d) 98
  37. 37.Which number is the odd one out: 55, 5, 29, 43? (a) 55 (b) 5 (c) 29 (d) 43
  38. 38.Which number is the odd one out: 59, 12, 17, 3? (a) 59 (b) 12 (c) 17 (d) 3
  39. 39.Which number is the odd one out: 59, 13, 14, 2? (a) 59 (b) 13 (c) 14 (d) 2
  40. 40.Which number is the odd one out: 74, 66, 43, 78? (a) 74 (b) 66 (c) 43 (d) 78

Answer key

  1. 82
  2. 8
  3. 59
  4. 80
  5. 74
  6. 51
  7. 56
  8. 36
  9. 71
  10. 33
  11. 32
  12. 54
  13. 48
  14. 57
  15. 42
  16. 91
  17. 44
  18. 6
  19. 44
  20. 60
  21. 36
  22. 66
  23. 75
  24. 9
  25. 75
  26. 98
  27. 65
  28. 40
  29. 91
  30. 82
  31. 15
  32. 78
  33. 52
  34. 8
  35. 33
  36. 98
  37. 55
  38. 12
  39. 14
  40. 43

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