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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 242 · 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: 17, 72, 3, 2? (a) 17 (b) 72 (c) 3 (d) 2
  2. 2.Which number is the odd one out: 6, 18, 90, 15? (a) 6 (b) 18 (c) 90 (d) 15
  3. 3.Which number is the odd one out: 29, 7, 98, 41? (a) 29 (b) 7 (c) 98 (d) 41
  4. 4.Which number is the odd one out: 94, 74, 57, 22? (a) 94 (b) 74 (c) 57 (d) 22
  5. 5.Which number is the odd one out: 44, 71, 19, 13? (a) 44 (b) 71 (c) 19 (d) 13
  6. 6.Which number is the odd one out: 40, 80, 12, 32? (a) 40 (b) 80 (c) 12 (d) 32
  7. 7.Which number is the odd one out: 53, 5, 73, 95? (a) 53 (b) 5 (c) 73 (d) 95
  8. 8.Which number is the odd one out: 47, 8, 89, 59? (a) 47 (b) 8 (c) 89 (d) 59
  9. 9.Which number is the odd one out: 91, 70, 36, 35? (a) 91 (b) 70 (c) 36 (d) 35
  10. 10.Which number is the odd one out: 96, 88, 46, 24? (a) 96 (b) 88 (c) 46 (d) 24
  11. 11.Which number is the odd one out: 21, 17, 59, 47? (a) 21 (b) 17 (c) 59 (d) 47
  12. 12.Which number is the odd one out: 59, 13, 89, 95? (a) 59 (b) 13 (c) 89 (d) 95
  13. 13.Which number is the odd one out: 57, 24, 96, 95? (a) 57 (b) 24 (c) 96 (d) 95
  14. 14.Which number is the odd one out: 13, 71, 37, 18? (a) 13 (b) 71 (c) 37 (d) 18
  15. 15.Which number is the odd one out: 68, 92, 43, 52? (a) 68 (b) 92 (c) 43 (d) 52
  16. 16.Which number is the odd one out: 73, 23, 74, 71? (a) 73 (b) 23 (c) 74 (d) 71
  17. 17.Which number is the odd one out: 43, 29, 93, 17? (a) 43 (b) 29 (c) 93 (d) 17
  18. 18.Which number is the odd one out: 71, 82, 61, 73? (a) 71 (b) 82 (c) 61 (d) 73
  19. 19.Which number is the odd one out: 67, 57, 3, 93? (a) 67 (b) 57 (c) 3 (d) 93
  20. 20.Which number is the odd one out: 10, 89, 97, 13? (a) 10 (b) 89 (c) 97 (d) 13
  21. 21.Which number is the odd one out: 5, 23, 66, 55? (a) 5 (b) 23 (c) 66 (d) 55
  22. 22.Which number is the odd one out: 33, 31, 75, 15? (a) 33 (b) 31 (c) 75 (d) 15
  23. 23.Which number is the odd one out: 77, 91, 70, 10? (a) 77 (b) 91 (c) 70 (d) 10
  24. 24.Which number is the odd one out: 31, 97, 19, 63? (a) 31 (b) 97 (c) 19 (d) 63
  25. 25.Which number is the odd one out: 44, 6, 12, 78? (a) 44 (b) 6 (c) 12 (d) 78
  26. 26.Which number is the odd one out: 59, 29, 23, 8? (a) 59 (b) 29 (c) 23 (d) 8
  27. 27.Which number is the odd one out: 50, 97, 83, 71? (a) 50 (b) 97 (c) 83 (d) 71
  28. 28.Which number is the odd one out: 59, 19, 90, 41? (a) 59 (b) 19 (c) 90 (d) 41
  29. 29.Which number is the odd one out: 17, 13, 31, 56? (a) 17 (b) 13 (c) 31 (d) 56
  30. 30.Which number is the odd one out: 31, 17, 97, 12? (a) 31 (b) 17 (c) 97 (d) 12
  31. 31.Which number is the odd one out: 81, 40, 64, 9? (a) 81 (b) 40 (c) 64 (d) 9
  32. 32.Which number is the odd one out: 27, 9, 81, 96? (a) 27 (b) 9 (c) 81 (d) 96
  33. 33.Which number is the odd one out: 51, 23, 97, 96? (a) 51 (b) 23 (c) 97 (d) 96
  34. 34.Which number is the odd one out: 89, 13, 79, 39? (a) 89 (b) 13 (c) 79 (d) 39
  35. 35.Which number is the odd one out: 67, 43, 6, 79? (a) 67 (b) 43 (c) 6 (d) 79
  36. 36.Which number is the odd one out: 25, 64, 16, 35? (a) 25 (b) 64 (c) 16 (d) 35
  37. 37.Which number is the odd one out: 43, 54, 59, 31? (a) 43 (b) 54 (c) 59 (d) 31
  38. 38.Which number is the odd one out: 61, 17, 89, 12? (a) 61 (b) 17 (c) 89 (d) 12
  39. 39.Which number is the odd one out: 13, 54, 18, 78? (a) 13 (b) 54 (c) 18 (d) 78
  40. 40.Which number is the odd one out: 73, 94, 53, 89? (a) 73 (b) 94 (c) 53 (d) 89

Answer key

  1. 72
  2. 15
  3. 98
  4. 57
  5. 44
  6. 12
  7. 95
  8. 8
  9. 36
  10. 46
  11. 21
  12. 95
  13. 95
  14. 18
  15. 43
  16. 74
  17. 93
  18. 82
  19. 67
  20. 10
  21. 66
  22. 31
  23. 10
  24. 63
  25. 44
  26. 8
  27. 50
  28. 90
  29. 56
  30. 12
  31. 40
  32. 96
  33. 96
  34. 39
  35. 6
  36. 35
  37. 54
  38. 12
  39. 13
  40. 94

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