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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 959 · 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: 19, 53, 31, 39? (a) 19 (b) 53 (c) 31 (d) 39
  2. 2.Which number is the odd one out: 18, 77, 14, 91? (a) 18 (b) 77 (c) 14 (d) 91
  3. 3.Which number is the odd one out: 64, 16, 63, 81? (a) 64 (b) 16 (c) 63 (d) 81
  4. 4.Which number is the odd one out: 43, 49, 71, 7? (a) 43 (b) 49 (c) 71 (d) 7
  5. 5.Which number is the odd one out: 47, 58, 17, 83? (a) 47 (b) 58 (c) 17 (d) 83
  6. 6.Which number is the odd one out: 88, 67, 89, 43? (a) 88 (b) 67 (c) 89 (d) 43
  7. 7.Which number is the odd one out: 31, 70, 17, 23? (a) 31 (b) 70 (c) 17 (d) 23
  8. 8.Which number is the odd one out: 17, 95, 31, 53? (a) 17 (b) 95 (c) 31 (d) 53
  9. 9.Which number is the odd one out: 97, 31, 41, 80? (a) 97 (b) 31 (c) 41 (d) 80
  10. 10.Which number is the odd one out: 27, 25, 30, 18? (a) 27 (b) 25 (c) 30 (d) 18
  11. 11.Which number is the odd one out: 17, 71, 28, 61? (a) 17 (b) 71 (c) 28 (d) 61
  12. 12.Which number is the odd one out: 89, 17, 7, 49? (a) 89 (b) 17 (c) 7 (d) 49
  13. 13.Which number is the odd one out: 83, 32, 48, 24? (a) 83 (b) 32 (c) 48 (d) 24
  14. 14.Which number is the odd one out: 73, 4, 11, 41? (a) 73 (b) 4 (c) 11 (d) 41
  15. 15.Which number is the odd one out: 2, 66, 79, 41? (a) 2 (b) 66 (c) 79 (d) 41
  16. 16.Which number is the odd one out: 98, 35, 65, 14? (a) 98 (b) 35 (c) 65 (d) 14
  17. 17.Which number is the odd one out: 29, 65, 55, 85? (a) 29 (b) 65 (c) 55 (d) 85
  18. 18.Which number is the odd one out: 62, 37, 19, 2? (a) 62 (b) 37 (c) 19 (d) 2
  19. 19.Which number is the odd one out: 29, 71, 27, 41? (a) 29 (b) 71 (c) 27 (d) 41
  20. 20.Which number is the odd one out: 9, 49, 21, 77? (a) 9 (b) 49 (c) 21 (d) 77
  21. 21.Which number is the odd one out: 41, 30, 67, 89? (a) 41 (b) 30 (c) 67 (d) 89
  22. 22.Which number is the odd one out: 6, 2, 3, 13? (a) 6 (b) 2 (c) 3 (d) 13
  23. 23.Which number is the odd one out: 19, 27, 90, 23? (a) 19 (b) 27 (c) 90 (d) 23
  24. 24.Which number is the odd one out: 72, 40, 54, 18? (a) 72 (b) 40 (c) 54 (d) 18
  25. 25.Which number is the odd one out: 67, 19, 10, 73? (a) 67 (b) 19 (c) 10 (d) 73
  26. 26.Which number is the odd one out: 61, 32, 17, 37? (a) 61 (b) 32 (c) 17 (d) 37
  27. 27.Which number is the odd one out: 43, 54, 18, 33? (a) 43 (b) 54 (c) 18 (d) 33
  28. 28.Which number is the odd one out: 96, 79, 24, 48? (a) 96 (b) 79 (c) 24 (d) 48
  29. 29.Which number is the odd one out: 97, 13, 2, 12? (a) 97 (b) 13 (c) 2 (d) 12
  30. 30.Which number is the odd one out: 24, 97, 29, 83? (a) 24 (b) 97 (c) 29 (d) 83
  31. 31.Which number is the odd one out: 9, 47, 81, 27? (a) 9 (b) 47 (c) 81 (d) 27
  32. 32.Which number is the odd one out: 24, 96, 48, 53? (a) 24 (b) 96 (c) 48 (d) 53
  33. 33.Which number is the odd one out: 81, 31, 99, 9? (a) 81 (b) 31 (c) 99 (d) 9
  34. 34.Which number is the odd one out: 13, 32, 92, 8? (a) 13 (b) 32 (c) 92 (d) 8
  35. 35.Which number is the odd one out: 11, 6, 41, 73? (a) 11 (b) 6 (c) 41 (d) 73
  36. 36.Which number is the odd one out: 17, 78, 18, 99? (a) 17 (b) 78 (c) 18 (d) 99
  37. 37.Which number is the odd one out: 44, 43, 89, 13? (a) 44 (b) 43 (c) 89 (d) 13
  38. 38.Which number is the odd one out: 71, 67, 61, 15? (a) 71 (b) 67 (c) 61 (d) 15
  39. 39.Which number is the odd one out: 27, 29, 13, 23? (a) 27 (b) 29 (c) 13 (d) 23
  40. 40.Which number is the odd one out: 14, 97, 11, 79? (a) 14 (b) 97 (c) 11 (d) 79

Answer key

  1. 39
  2. 18
  3. 63
  4. 49
  5. 58
  6. 88
  7. 70
  8. 95
  9. 80
  10. 25
  11. 28
  12. 49
  13. 83
  14. 4
  15. 66
  16. 65
  17. 29
  18. 62
  19. 27
  20. 9
  21. 30
  22. 6
  23. 90
  24. 40
  25. 10
  26. 32
  27. 43
  28. 79
  29. 12
  30. 24
  31. 47
  32. 53
  33. 31
  34. 13
  35. 6
  36. 17
  37. 44
  38. 15
  39. 27
  40. 14

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