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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 336 · 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: 11, 38, 13, 53? (a) 11 (b) 38 (c) 13 (d) 53
  2. 2.Which number is the odd one out: 61, 89, 11, 74? (a) 61 (b) 89 (c) 11 (d) 74
  3. 3.Which number is the odd one out: 11, 32, 31, 23? (a) 11 (b) 32 (c) 31 (d) 23
  4. 4.Which number is the odd one out: 61, 87, 71, 41? (a) 61 (b) 87 (c) 71 (d) 41
  5. 5.Which number is the odd one out: 31, 9, 71, 41? (a) 31 (b) 9 (c) 71 (d) 41
  6. 6.Which number is the odd one out: 19, 89, 43, 46? (a) 19 (b) 89 (c) 43 (d) 46
  7. 7.Which number is the odd one out: 31, 72, 53, 41? (a) 31 (b) 72 (c) 53 (d) 41
  8. 8.Which number is the odd one out: 47, 18, 2, 31? (a) 47 (b) 18 (c) 2 (d) 31
  9. 9.Which number is the odd one out: 10, 95, 14, 55? (a) 10 (b) 95 (c) 14 (d) 55
  10. 10.Which number is the odd one out: 28, 9, 81, 49? (a) 28 (b) 9 (c) 81 (d) 49
  11. 11.Which number is the odd one out: 79, 40, 97, 11? (a) 79 (b) 40 (c) 97 (d) 11
  12. 12.Which number is the odd one out: 77, 10, 80, 8? (a) 77 (b) 10 (c) 80 (d) 8
  13. 13.Which number is the odd one out: 42, 83, 13, 43? (a) 42 (b) 83 (c) 13 (d) 43
  14. 14.Which number is the odd one out: 32, 31, 53, 19? (a) 32 (b) 31 (c) 53 (d) 19
  15. 15.Which number is the odd one out: 20, 43, 13, 31? (a) 20 (b) 43 (c) 13 (d) 31
  16. 16.Which number is the odd one out: 92, 4, 9, 81? (a) 92 (b) 4 (c) 9 (d) 81
  17. 17.Which number is the odd one out: 87, 59, 13, 29? (a) 87 (b) 59 (c) 13 (d) 29
  18. 18.Which number is the odd one out: 51, 67, 37, 53? (a) 51 (b) 67 (c) 37 (d) 53
  19. 19.Which number is the odd one out: 90, 95, 18, 54? (a) 90 (b) 95 (c) 18 (d) 54
  20. 20.Which number is the odd one out: 43, 48, 61, 19? (a) 43 (b) 48 (c) 61 (d) 19
  21. 21.Which number is the odd one out: 24, 19, 79, 67? (a) 24 (b) 19 (c) 79 (d) 67
  22. 22.Which number is the odd one out: 73, 71, 85, 13? (a) 73 (b) 71 (c) 85 (d) 13
  23. 23.Which number is the odd one out: 63, 16, 64, 4? (a) 63 (b) 16 (c) 64 (d) 4
  24. 24.Which number is the odd one out: 41, 29, 85, 71? (a) 41 (b) 29 (c) 85 (d) 71
  25. 25.Which number is the odd one out: 98, 39, 21, 14? (a) 98 (b) 39 (c) 21 (d) 14
  26. 26.Which number is the odd one out: 17, 19, 89, 35? (a) 17 (b) 19 (c) 89 (d) 35
  27. 27.Which number is the odd one out: 7, 11, 73, 49? (a) 7 (b) 11 (c) 73 (d) 49
  28. 28.Which number is the odd one out: 97, 55, 19, 53? (a) 97 (b) 55 (c) 19 (d) 53
  29. 29.Which number is the odd one out: 9, 3, 61, 83? (a) 9 (b) 3 (c) 61 (d) 83
  30. 30.Which number is the odd one out: 43, 93, 61, 97? (a) 43 (b) 93 (c) 61 (d) 97
  31. 31.Which number is the odd one out: 89, 13, 71, 96? (a) 89 (b) 13 (c) 71 (d) 96
  32. 32.Which number is the odd one out: 31, 23, 39, 3? (a) 31 (b) 23 (c) 39 (d) 3
  33. 33.Which number is the odd one out: 13, 29, 61, 88? (a) 13 (b) 29 (c) 61 (d) 88
  34. 34.Which number is the odd one out: 73, 26, 59, 17? (a) 73 (b) 26 (c) 59 (d) 17
  35. 35.Which number is the odd one out: 89, 23, 80, 61? (a) 89 (b) 23 (c) 80 (d) 61
  36. 36.Which number is the odd one out: 11, 37, 89, 20? (a) 11 (b) 37 (c) 89 (d) 20
  37. 37.Which number is the odd one out: 97, 47, 67, 32? (a) 97 (b) 47 (c) 67 (d) 32
  38. 38.Which number is the odd one out: 53, 79, 59, 10? (a) 53 (b) 79 (c) 59 (d) 10
  39. 39.Which number is the odd one out: 73, 53, 63, 29? (a) 73 (b) 53 (c) 63 (d) 29
  40. 40.Which number is the odd one out: 2, 19, 3, 96? (a) 2 (b) 19 (c) 3 (d) 96

Answer key

  1. 38
  2. 74
  3. 32
  4. 87
  5. 9
  6. 46
  7. 72
  8. 18
  9. 14
  10. 28
  11. 40
  12. 77
  13. 42
  14. 32
  15. 20
  16. 92
  17. 87
  18. 51
  19. 95
  20. 48
  21. 24
  22. 85
  23. 63
  24. 85
  25. 39
  26. 35
  27. 49
  28. 55
  29. 9
  30. 93
  31. 96
  32. 39
  33. 88
  34. 26
  35. 80
  36. 20
  37. 32
  38. 10
  39. 63
  40. 96

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