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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 102 · 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: 78, 83, 19, 29? (a) 78 (b) 83 (c) 19 (d) 29
  2. 2.Which number is the odd one out: 61, 24, 48, 69? (a) 61 (b) 24 (c) 48 (d) 69
  3. 3.Which number is the odd one out: 53, 61, 13, 65? (a) 53 (b) 61 (c) 13 (d) 65
  4. 4.Which number is the odd one out: 8, 44, 24, 96? (a) 8 (b) 44 (c) 24 (d) 96
  5. 5.Which number is the odd one out: 13, 24, 8, 96? (a) 13 (b) 24 (c) 8 (d) 96
  6. 6.Which number is the odd one out: 73, 79, 13, 21? (a) 73 (b) 79 (c) 13 (d) 21
  7. 7.Which number is the odd one out: 93, 67, 31, 11? (a) 93 (b) 67 (c) 31 (d) 11
  8. 8.Which number is the odd one out: 17, 83, 55, 41? (a) 17 (b) 83 (c) 55 (d) 41
  9. 9.Which number is the odd one out: 77, 7, 78, 13? (a) 77 (b) 7 (c) 78 (d) 13
  10. 10.Which number is the odd one out: 96, 83, 61, 19? (a) 96 (b) 83 (c) 61 (d) 19
  11. 11.Which number is the odd one out: 41, 46, 17, 37? (a) 41 (b) 46 (c) 17 (d) 37
  12. 12.Which number is the odd one out: 59, 40, 19, 73? (a) 59 (b) 40 (c) 19 (d) 73
  13. 13.Which number is the odd one out: 2, 37, 73, 13? (a) 2 (b) 37 (c) 73 (d) 13
  14. 14.Which number is the odd one out: 43, 71, 79, 35? (a) 43 (b) 71 (c) 79 (d) 35
  15. 15.Which number is the odd one out: 17, 59, 11, 14? (a) 17 (b) 59 (c) 11 (d) 14
  16. 16.Which number is the odd one out: 8, 3, 40, 80? (a) 8 (b) 3 (c) 40 (d) 80
  17. 17.Which number is the odd one out: 91, 70, 35, 38? (a) 91 (b) 70 (c) 35 (d) 38
  18. 18.Which number is the odd one out: 71, 78, 89, 2? (a) 71 (b) 78 (c) 89 (d) 2
  19. 19.Which number is the odd one out: 96, 78, 56, 42? (a) 96 (b) 78 (c) 56 (d) 42
  20. 20.Which number is the odd one out: 97, 13, 89, 92? (a) 97 (b) 13 (c) 89 (d) 92
  21. 21.Which number is the odd one out: 48, 24, 60, 5? (a) 48 (b) 24 (c) 60 (d) 5
  22. 22.Which number is the odd one out: 43, 46, 61, 83? (a) 43 (b) 46 (c) 61 (d) 83
  23. 23.Which number is the odd one out: 23, 44, 53, 67? (a) 23 (b) 44 (c) 53 (d) 67
  24. 24.Which number is the odd one out: 41, 13, 23, 20? (a) 41 (b) 13 (c) 23 (d) 20
  25. 25.Which number is the odd one out: 75, 54, 78, 18? (a) 75 (b) 54 (c) 78 (d) 18
  26. 26.Which number is the odd one out: 41, 25, 97, 13? (a) 41 (b) 25 (c) 97 (d) 13
  27. 27.Which number is the odd one out: 17, 3, 45, 67? (a) 17 (b) 3 (c) 45 (d) 67
  28. 28.Which number is the odd one out: 32, 92, 8, 38? (a) 32 (b) 92 (c) 8 (d) 38
  29. 29.Which number is the odd one out: 4, 68, 81, 52? (a) 4 (b) 68 (c) 81 (d) 52
  30. 30.Which number is the odd one out: 61, 51, 31, 43? (a) 61 (b) 51 (c) 31 (d) 43
  31. 31.Which number is the odd one out: 47, 41, 45, 43? (a) 47 (b) 41 (c) 45 (d) 43
  32. 32.Which number is the odd one out: 73, 37, 4, 2? (a) 73 (b) 37 (c) 4 (d) 2
  33. 33.Which number is the odd one out: 59, 41, 52, 67? (a) 59 (b) 41 (c) 52 (d) 67
  34. 34.Which number is the odd one out: 71, 23, 31, 76? (a) 71 (b) 23 (c) 31 (d) 76
  35. 35.Which number is the odd one out: 96, 3, 53, 71? (a) 96 (b) 3 (c) 53 (d) 71
  36. 36.Which number is the odd one out: 59, 89, 70, 29? (a) 59 (b) 89 (c) 70 (d) 29
  37. 37.Which number is the odd one out: 31, 70, 73, 19? (a) 31 (b) 70 (c) 73 (d) 19
  38. 38.Which number is the odd one out: 88, 32, 15, 94? (a) 88 (b) 32 (c) 15 (d) 94
  39. 39.Which number is the odd one out: 17, 47, 83, 51? (a) 17 (b) 47 (c) 83 (d) 51
  40. 40.Which number is the odd one out: 29, 59, 73, 50? (a) 29 (b) 59 (c) 73 (d) 50

Answer key

  1. 78
  2. 61
  3. 65
  4. 44
  5. 13
  6. 21
  7. 93
  8. 55
  9. 78
  10. 96
  11. 46
  12. 40
  13. 2
  14. 35
  15. 14
  16. 3
  17. 38
  18. 78
  19. 56
  20. 92
  21. 5
  22. 46
  23. 44
  24. 20
  25. 75
  26. 25
  27. 45
  28. 38
  29. 81
  30. 51
  31. 45
  32. 4
  33. 52
  34. 76
  35. 96
  36. 70
  37. 70
  38. 15
  39. 51
  40. 50

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