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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 470 · 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: 98, 19, 73, 2? (a) 98 (b) 19 (c) 73 (d) 2
  2. 2.Which number is the odd one out: 89, 81, 61, 59? (a) 89 (b) 81 (c) 61 (d) 59
  3. 3.Which number is the odd one out: 88, 78, 8, 96? (a) 88 (b) 78 (c) 8 (d) 96
  4. 4.Which number is the odd one out: 73, 23, 3, 9? (a) 73 (b) 23 (c) 3 (d) 9
  5. 5.Which number is the odd one out: 97, 62, 17, 47? (a) 97 (b) 62 (c) 17 (d) 47
  6. 6.Which number is the odd one out: 83, 2, 43, 12? (a) 83 (b) 2 (c) 43 (d) 12
  7. 7.Which number is the odd one out: 98, 5, 70, 7? (a) 98 (b) 5 (c) 70 (d) 7
  8. 8.Which number is the odd one out: 52, 39, 69, 93? (a) 52 (b) 39 (c) 69 (d) 93
  9. 9.Which number is the odd one out: 88, 96, 48, 59? (a) 88 (b) 96 (c) 48 (d) 59
  10. 10.Which number is the odd one out: 97, 69, 3, 92? (a) 97 (b) 69 (c) 3 (d) 92
  11. 11.Which number is the odd one out: 6, 84, 7, 12? (a) 6 (b) 84 (c) 7 (d) 12
  12. 12.Which number is the odd one out: 9, 45, 16, 64? (a) 9 (b) 45 (c) 16 (d) 64
  13. 13.Which number is the odd one out: 61, 93, 39, 51? (a) 61 (b) 93 (c) 39 (d) 51
  14. 14.Which number is the odd one out: 10, 67, 59, 5? (a) 10 (b) 67 (c) 59 (d) 5
  15. 15.Which number is the odd one out: 47, 31, 41, 64? (a) 47 (b) 31 (c) 41 (d) 64
  16. 16.Which number is the odd one out: 72, 11, 83, 97? (a) 72 (b) 11 (c) 83 (d) 97
  17. 17.Which number is the odd one out: 88, 48, 24, 59? (a) 88 (b) 48 (c) 24 (d) 59
  18. 18.Which number is the odd one out: 77, 83, 61, 97? (a) 77 (b) 83 (c) 61 (d) 97
  19. 19.Which number is the odd one out: 17, 47, 2, 60? (a) 17 (b) 47 (c) 2 (d) 60
  20. 20.Which number is the odd one out: 41, 29, 37, 90? (a) 41 (b) 29 (c) 37 (d) 90
  21. 21.Which number is the odd one out: 39, 89, 79, 11? (a) 39 (b) 89 (c) 79 (d) 11
  22. 22.Which number is the odd one out: 17, 43, 19, 24? (a) 17 (b) 43 (c) 19 (d) 24
  23. 23.Which number is the odd one out: 40, 20, 80, 93? (a) 40 (b) 20 (c) 80 (d) 93
  24. 24.Which number is the odd one out: 32, 19, 59, 13? (a) 32 (b) 19 (c) 59 (d) 13
  25. 25.Which number is the odd one out: 71, 31, 24, 67? (a) 71 (b) 31 (c) 24 (d) 67
  26. 26.Which number is the odd one out: 49, 84, 60, 75? (a) 49 (b) 84 (c) 60 (d) 75
  27. 27.Which number is the odd one out: 59, 42, 71, 7? (a) 59 (b) 42 (c) 71 (d) 7
  28. 28.Which number is the odd one out: 47, 73, 90, 23? (a) 47 (b) 73 (c) 90 (d) 23
  29. 29.Which number is the odd one out: 71, 70, 29, 13? (a) 71 (b) 70 (c) 29 (d) 13
  30. 30.Which number is the odd one out: 79, 37, 18, 59? (a) 79 (b) 37 (c) 18 (d) 59
  31. 31.Which number is the odd one out: 23, 53, 41, 40? (a) 23 (b) 53 (c) 41 (d) 40
  32. 32.Which number is the odd one out: 31, 62, 41, 59? (a) 31 (b) 62 (c) 41 (d) 59
  33. 33.Which number is the odd one out: 17, 13, 59, 88? (a) 17 (b) 13 (c) 59 (d) 88
  34. 34.Which number is the odd one out: 43, 31, 61, 32? (a) 43 (b) 31 (c) 61 (d) 32
  35. 35.Which number is the odd one out: 75, 56, 95, 15? (a) 75 (b) 56 (c) 95 (d) 15
  36. 36.Which number is the odd one out: 69, 46, 94, 62? (a) 69 (b) 46 (c) 94 (d) 62
  37. 37.Which number is the odd one out: 25, 11, 53, 89? (a) 25 (b) 11 (c) 53 (d) 89
  38. 38.Which number is the odd one out: 72, 96, 24, 9? (a) 72 (b) 96 (c) 24 (d) 9
  39. 39.Which number is the odd one out: 97, 69, 11, 59? (a) 97 (b) 69 (c) 11 (d) 59
  40. 40.Which number is the odd one out: 12, 19, 83, 97? (a) 12 (b) 19 (c) 83 (d) 97

Answer key

  1. 98
  2. 81
  3. 78
  4. 9
  5. 62
  6. 12
  7. 5
  8. 52
  9. 59
  10. 92
  11. 7
  12. 45
  13. 61
  14. 10
  15. 64
  16. 72
  17. 59
  18. 77
  19. 60
  20. 90
  21. 39
  22. 24
  23. 93
  24. 32
  25. 24
  26. 49
  27. 42
  28. 90
  29. 70
  30. 18
  31. 40
  32. 62
  33. 88
  34. 32
  35. 56
  36. 69
  37. 25
  38. 9
  39. 69
  40. 12

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