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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 366 · 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: 81, 9, 99, 20? (a) 81 (b) 9 (c) 99 (d) 20
  2. 2.Which number is the odd one out: 89, 19, 30, 37? (a) 89 (b) 19 (c) 30 (d) 37
  3. 3.Which number is the odd one out: 62, 67, 47, 61? (a) 62 (b) 67 (c) 47 (d) 61
  4. 4.Which number is the odd one out: 67, 20, 37, 97? (a) 67 (b) 20 (c) 37 (d) 97
  5. 5.Which number is the odd one out: 92, 44, 53, 68? (a) 92 (b) 44 (c) 53 (d) 68
  6. 6.Which number is the odd one out: 18, 6, 23, 54? (a) 18 (b) 6 (c) 23 (d) 54
  7. 7.Which number is the odd one out: 53, 31, 38, 59? (a) 53 (b) 31 (c) 38 (d) 59
  8. 8.Which number is the odd one out: 23, 73, 4, 89? (a) 23 (b) 73 (c) 4 (d) 89
  9. 9.Which number is the odd one out: 96, 72, 54, 91? (a) 96 (b) 72 (c) 54 (d) 91
  10. 10.Which number is the odd one out: 48, 80, 24, 25? (a) 48 (b) 80 (c) 24 (d) 25
  11. 11.Which number is the odd one out: 2, 74, 31, 37? (a) 2 (b) 74 (c) 31 (d) 37
  12. 12.Which number is the odd one out: 19, 78, 83, 31? (a) 19 (b) 78 (c) 83 (d) 31
  13. 13.Which number is the odd one out: 87, 79, 3, 23? (a) 87 (b) 79 (c) 3 (d) 23
  14. 14.Which number is the odd one out: 24, 8, 96, 10? (a) 24 (b) 8 (c) 96 (d) 10
  15. 15.Which number is the odd one out: 83, 11, 62, 53? (a) 83 (b) 11 (c) 62 (d) 53
  16. 16.Which number is the odd one out: 77, 16, 49, 91? (a) 77 (b) 16 (c) 49 (d) 91
  17. 17.Which number is the odd one out: 79, 82, 47, 2? (a) 79 (b) 82 (c) 47 (d) 2
  18. 18.Which number is the odd one out: 81, 53, 9, 27? (a) 81 (b) 53 (c) 9 (d) 27
  19. 19.Which number is the odd one out: 59, 17, 71, 39? (a) 59 (b) 17 (c) 71 (d) 39
  20. 20.Which number is the odd one out: 18, 9, 54, 49? (a) 18 (b) 9 (c) 54 (d) 49
  21. 21.Which number is the odd one out: 77, 68, 24, 96? (a) 77 (b) 68 (c) 24 (d) 96
  22. 22.Which number is the odd one out: 10, 91, 27, 63? (a) 10 (b) 91 (c) 27 (d) 63
  23. 23.Which number is the odd one out: 16, 61, 64, 4? (a) 16 (b) 61 (c) 64 (d) 4
  24. 24.Which number is the odd one out: 67, 37, 83, 30? (a) 67 (b) 37 (c) 83 (d) 30
  25. 25.Which number is the odd one out: 19, 67, 93, 89? (a) 19 (b) 67 (c) 93 (d) 89
  26. 26.Which number is the odd one out: 16, 64, 4, 6? (a) 16 (b) 64 (c) 4 (d) 6
  27. 27.Which number is the odd one out: 61, 89, 73, 91? (a) 61 (b) 89 (c) 73 (d) 91
  28. 28.Which number is the odd one out: 40, 74, 8, 85? (a) 40 (b) 74 (c) 8 (d) 85
  29. 29.Which number is the odd one out: 8, 3, 87, 79? (a) 8 (b) 3 (c) 87 (d) 79
  30. 30.Which number is the odd one out: 91, 18, 54, 63? (a) 91 (b) 18 (c) 54 (d) 63
  31. 31.Which number is the odd one out: 62, 80, 40, 32? (a) 62 (b) 80 (c) 40 (d) 32
  32. 32.Which number is the odd one out: 11, 12, 23, 89? (a) 11 (b) 12 (c) 23 (d) 89
  33. 33.Which number is the odd one out: 53, 17, 84, 11? (a) 53 (b) 17 (c) 84 (d) 11
  34. 34.Which number is the odd one out: 24, 80, 78, 30? (a) 24 (b) 80 (c) 78 (d) 30
  35. 35.Which number is the odd one out: 72, 33, 19, 31? (a) 72 (b) 33 (c) 19 (d) 31
  36. 36.Which number is the odd one out: 85, 4, 64, 16? (a) 85 (b) 4 (c) 64 (d) 16
  37. 37.Which number is the odd one out: 24, 40, 88, 60? (a) 24 (b) 40 (c) 88 (d) 60
  38. 38.Which number is the odd one out: 79, 97, 84, 71? (a) 79 (b) 97 (c) 84 (d) 71
  39. 39.Which number is the odd one out: 3, 51, 83, 34? (a) 3 (b) 51 (c) 83 (d) 34
  40. 40.Which number is the odd one out: 9, 81, 25, 70? (a) 9 (b) 81 (c) 25 (d) 70

Answer key

  1. 20
  2. 30
  3. 62
  4. 20
  5. 53
  6. 23
  7. 38
  8. 4
  9. 91
  10. 25
  11. 74
  12. 78
  13. 87
  14. 10
  15. 62
  16. 16
  17. 82
  18. 53
  19. 39
  20. 49
  21. 77
  22. 10
  23. 61
  24. 30
  25. 93
  26. 6
  27. 91
  28. 85
  29. 8
  30. 91
  31. 62
  32. 12
  33. 84
  34. 80
  35. 72
  36. 85
  37. 60
  38. 84
  39. 34
  40. 70

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