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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 860 · 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: 89, 9, 23, 29? (a) 89 (b) 9 (c) 23 (d) 29
  2. 2.Which number is the odd one out: 82, 67, 83, 23? (a) 82 (b) 67 (c) 83 (d) 23
  3. 3.Which number is the odd one out: 88, 8, 32, 85? (a) 88 (b) 8 (c) 32 (d) 85
  4. 4.Which number is the odd one out: 57, 69, 59, 3? (a) 57 (b) 69 (c) 59 (d) 3
  5. 5.Which number is the odd one out: 65, 16, 64, 80? (a) 65 (b) 16 (c) 64 (d) 80
  6. 6.Which number is the odd one out: 53, 14, 23, 31? (a) 53 (b) 14 (c) 23 (d) 31
  7. 7.Which number is the odd one out: 2, 18, 71, 17? (a) 2 (b) 18 (c) 71 (d) 17
  8. 8.Which number is the odd one out: 37, 62, 67, 23? (a) 37 (b) 62 (c) 67 (d) 23
  9. 9.Which number is the odd one out: 7, 73, 43, 42? (a) 7 (b) 73 (c) 43 (d) 42
  10. 10.Which number is the odd one out: 19, 29, 38, 71? (a) 19 (b) 29 (c) 38 (d) 71
  11. 11.Which number is the odd one out: 12, 3, 43, 23? (a) 12 (b) 3 (c) 43 (d) 23
  12. 12.Which number is the odd one out: 69, 47, 19, 73? (a) 69 (b) 47 (c) 19 (d) 73
  13. 13.Which number is the odd one out: 31, 29, 17, 26? (a) 31 (b) 29 (c) 17 (d) 26
  14. 14.Which number is the odd one out: 53, 73, 7, 28? (a) 53 (b) 73 (c) 7 (d) 28
  15. 15.Which number is the odd one out: 16, 7, 92, 64? (a) 16 (b) 7 (c) 92 (d) 64
  16. 16.Which number is the odd one out: 2, 98, 19, 17? (a) 2 (b) 98 (c) 19 (d) 17
  17. 17.Which number is the odd one out: 29, 23, 67, 38? (a) 29 (b) 23 (c) 67 (d) 38
  18. 18.Which number is the odd one out: 41, 23, 17, 24? (a) 41 (b) 23 (c) 17 (d) 24
  19. 19.Which number is the odd one out: 55, 35, 75, 21? (a) 55 (b) 35 (c) 75 (d) 21
  20. 20.Which number is the odd one out: 81, 21, 98, 14? (a) 81 (b) 21 (c) 98 (d) 14
  21. 21.Which number is the odd one out: 6, 32, 4, 16? (a) 6 (b) 32 (c) 4 (d) 16
  22. 22.Which number is the odd one out: 65, 32, 4, 16? (a) 65 (b) 32 (c) 4 (d) 16
  23. 23.Which number is the odd one out: 97, 2, 29, 73? (a) 97 (b) 2 (c) 29 (d) 73
  24. 24.Which number is the odd one out: 48, 32, 90, 80? (a) 48 (b) 32 (c) 90 (d) 80
  25. 25.Which number is the odd one out: 4, 64, 16, 95? (a) 4 (b) 64 (c) 16 (d) 95
  26. 26.Which number is the odd one out: 73, 61, 31, 36? (a) 73 (b) 61 (c) 31 (d) 36
  27. 27.Which number is the odd one out: 19, 11, 61, 35? (a) 19 (b) 11 (c) 61 (d) 35
  28. 28.Which number is the odd one out: 29, 17, 73, 14? (a) 29 (b) 17 (c) 73 (d) 14
  29. 29.Which number is the odd one out: 79, 97, 85, 73? (a) 79 (b) 97 (c) 85 (d) 73
  30. 30.Which number is the odd one out: 16, 66, 32, 64? (a) 16 (b) 66 (c) 32 (d) 64
  31. 31.Which number is the odd one out: 60, 79, 97, 2? (a) 60 (b) 79 (c) 97 (d) 2
  32. 32.Which number is the odd one out: 97, 69, 31, 17? (a) 97 (b) 69 (c) 31 (d) 17
  33. 33.Which number is the odd one out: 3, 11, 33, 43? (a) 3 (b) 11 (c) 33 (d) 43
  34. 34.Which number is the odd one out: 60, 11, 37, 13? (a) 60 (b) 11 (c) 37 (d) 13
  35. 35.Which number is the odd one out: 37, 10, 97, 13? (a) 37 (b) 10 (c) 97 (d) 13
  36. 36.Which number is the odd one out: 13, 17, 2, 32? (a) 13 (b) 17 (c) 2 (d) 32
  37. 37.Which number is the odd one out: 59, 12, 11, 39? (a) 59 (b) 12 (c) 11 (d) 39
  38. 38.Which number is the odd one out: 15, 95, 58, 57? (a) 15 (b) 95 (c) 58 (d) 57
  39. 39.Which number is the odd one out: 73, 17, 74, 59? (a) 73 (b) 17 (c) 74 (d) 59
  40. 40.Which number is the odd one out: 28, 2, 23, 13? (a) 28 (b) 2 (c) 23 (d) 13

Answer key

  1. 9
  2. 82
  3. 85
  4. 59
  5. 65
  6. 14
  7. 18
  8. 62
  9. 42
  10. 38
  11. 12
  12. 69
  13. 26
  14. 28
  15. 7
  16. 98
  17. 38
  18. 24
  19. 21
  20. 81
  21. 6
  22. 65
  23. 2
  24. 90
  25. 95
  26. 36
  27. 35
  28. 14
  29. 85
  30. 66
  31. 60
  32. 69
  33. 33
  34. 60
  35. 10
  36. 32
  37. 12
  38. 58
  39. 74
  40. 28

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