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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 946 · 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: 64, 3, 16, 4? (a) 64 (b) 3 (c) 16 (d) 4
  2. 2.Which number is the odd one out: 35, 62, 10, 86? (a) 35 (b) 62 (c) 10 (d) 86
  3. 3.Which number is the odd one out: 16, 40, 9, 81? (a) 16 (b) 40 (c) 9 (d) 81
  4. 4.Which number is the odd one out: 73, 42, 61, 31? (a) 73 (b) 42 (c) 61 (d) 31
  5. 5.Which number is the odd one out: 12, 96, 45, 24? (a) 12 (b) 96 (c) 45 (d) 24
  6. 6.Which number is the odd one out: 29, 39, 41, 23? (a) 29 (b) 39 (c) 41 (d) 23
  7. 7.Which number is the odd one out: 98, 67, 11, 37? (a) 98 (b) 67 (c) 11 (d) 37
  8. 8.Which number is the odd one out: 61, 91, 73, 59? (a) 61 (b) 91 (c) 73 (d) 59
  9. 9.Which number is the odd one out: 11, 71, 23, 45? (a) 11 (b) 71 (c) 23 (d) 45
  10. 10.Which number is the odd one out: 6, 48, 96, 94? (a) 6 (b) 48 (c) 96 (d) 94
  11. 11.Which number is the odd one out: 65, 10, 32, 55? (a) 65 (b) 10 (c) 32 (d) 55
  12. 12.Which number is the odd one out: 79, 84, 3, 7? (a) 79 (b) 84 (c) 3 (d) 7
  13. 13.Which number is the odd one out: 83, 17, 62, 11? (a) 83 (b) 17 (c) 62 (d) 11
  14. 14.Which number is the odd one out: 7, 29, 31, 14? (a) 7 (b) 29 (c) 31 (d) 14
  15. 15.Which number is the odd one out: 11, 83, 94, 37? (a) 11 (b) 83 (c) 94 (d) 37
  16. 16.Which number is the odd one out: 47, 83, 49, 71? (a) 47 (b) 83 (c) 49 (d) 71
  17. 17.Which number is the odd one out: 84, 79, 37, 83? (a) 84 (b) 79 (c) 37 (d) 83
  18. 18.Which number is the odd one out: 30, 61, 43, 3? (a) 30 (b) 61 (c) 43 (d) 3
  19. 19.Which number is the odd one out: 2, 79, 86, 67? (a) 2 (b) 79 (c) 86 (d) 67
  20. 20.Which number is the odd one out: 44, 40, 88, 80? (a) 44 (b) 40 (c) 88 (d) 80
  21. 21.Which number is the odd one out: 4, 16, 3, 64? (a) 4 (b) 16 (c) 3 (d) 64
  22. 22.Which number is the odd one out: 41, 37, 98, 61? (a) 41 (b) 37 (c) 98 (d) 61
  23. 23.Which number is the odd one out: 96, 24, 49, 66? (a) 96 (b) 24 (c) 49 (d) 66
  24. 24.Which number is the odd one out: 14, 73, 61, 19? (a) 14 (b) 73 (c) 61 (d) 19
  25. 25.Which number is the odd one out: 37, 54, 17, 89? (a) 37 (b) 54 (c) 17 (d) 89
  26. 26.Which number is the odd one out: 51, 79, 43, 19? (a) 51 (b) 79 (c) 43 (d) 19
  27. 27.Which number is the odd one out: 67, 54, 27, 18? (a) 67 (b) 54 (c) 27 (d) 18
  28. 28.Which number is the odd one out: 86, 45, 52, 76? (a) 86 (b) 45 (c) 52 (d) 76
  29. 29.Which number is the odd one out: 25, 6, 60, 12? (a) 25 (b) 6 (c) 60 (d) 12
  30. 30.Which number is the odd one out: 12, 60, 55, 78? (a) 12 (b) 60 (c) 55 (d) 78
  31. 31.Which number is the odd one out: 63, 11, 17, 3? (a) 63 (b) 11 (c) 17 (d) 3
  32. 32.Which number is the odd one out: 33, 41, 17, 97? (a) 33 (b) 41 (c) 17 (d) 97
  33. 33.Which number is the odd one out: 41, 72, 3, 11? (a) 41 (b) 72 (c) 3 (d) 11
  34. 34.Which number is the odd one out: 75, 73, 31, 17? (a) 75 (b) 73 (c) 31 (d) 17
  35. 35.Which number is the odd one out: 81, 27, 9, 31? (a) 81 (b) 27 (c) 9 (d) 31
  36. 36.Which number is the odd one out: 2, 13, 60, 47? (a) 2 (b) 13 (c) 60 (d) 47
  37. 37.Which number is the odd one out: 31, 11, 47, 85? (a) 31 (b) 11 (c) 47 (d) 85
  38. 38.Which number is the odd one out: 61, 23, 34, 43? (a) 61 (b) 23 (c) 34 (d) 43
  39. 39.Which number is the odd one out: 2, 73, 70, 97? (a) 2 (b) 73 (c) 70 (d) 97
  40. 40.Which number is the odd one out: 25, 81, 15, 85? (a) 25 (b) 81 (c) 15 (d) 85

Answer key

  1. 3
  2. 35
  3. 40
  4. 42
  5. 45
  6. 39
  7. 98
  8. 91
  9. 45
  10. 94
  11. 32
  12. 84
  13. 62
  14. 14
  15. 94
  16. 49
  17. 84
  18. 30
  19. 86
  20. 44
  21. 3
  22. 98
  23. 49
  24. 14
  25. 54
  26. 51
  27. 67
  28. 45
  29. 25
  30. 55
  31. 63
  32. 33
  33. 72
  34. 75
  35. 31
  36. 60
  37. 85
  38. 34
  39. 70
  40. 81

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