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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 678 · 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: 83, 8, 73, 2? (a) 83 (b) 8 (c) 73 (d) 2
  2. 2.Which number is the odd one out: 18, 8, 72, 19? (a) 18 (b) 8 (c) 72 (d) 19
  3. 3.Which number is the odd one out: 64, 48, 96, 4? (a) 64 (b) 48 (c) 96 (d) 4
  4. 4.Which number is the odd one out: 89, 97, 31, 6? (a) 89 (b) 97 (c) 31 (d) 6
  5. 5.Which number is the odd one out: 53, 27, 41, 73? (a) 53 (b) 27 (c) 41 (d) 73
  6. 6.Which number is the odd one out: 41, 79, 28, 97? (a) 41 (b) 79 (c) 28 (d) 97
  7. 7.Which number is the odd one out: 89, 22, 73, 71? (a) 89 (b) 22 (c) 73 (d) 71
  8. 8.Which number is the odd one out: 36, 35, 91, 70? (a) 36 (b) 35 (c) 91 (d) 70
  9. 9.Which number is the odd one out: 83, 44, 53, 13? (a) 83 (b) 44 (c) 53 (d) 13
  10. 10.Which number is the odd one out: 64, 16, 20, 4? (a) 64 (b) 16 (c) 20 (d) 4
  11. 11.Which number is the odd one out: 26, 21, 34, 38? (a) 26 (b) 21 (c) 34 (d) 38
  12. 12.Which number is the odd one out: 77, 35, 80, 28? (a) 77 (b) 35 (c) 80 (d) 28
  13. 13.Which number is the odd one out: 31, 54, 67, 53? (a) 31 (b) 54 (c) 67 (d) 53
  14. 14.Which number is the odd one out: 41, 11, 4, 31? (a) 41 (b) 11 (c) 4 (d) 31
  15. 15.Which number is the odd one out: 79, 61, 58, 19? (a) 79 (b) 61 (c) 58 (d) 19
  16. 16.Which number is the odd one out: 51, 17, 53, 61? (a) 51 (b) 17 (c) 53 (d) 61
  17. 17.Which number is the odd one out: 52, 11, 41, 13? (a) 52 (b) 11 (c) 41 (d) 13
  18. 18.Which number is the odd one out: 30, 20, 6, 66? (a) 30 (b) 20 (c) 6 (d) 66
  19. 19.Which number is the odd one out: 13, 79, 74, 73? (a) 13 (b) 79 (c) 74 (d) 73
  20. 20.Which number is the odd one out: 17, 61, 71, 74? (a) 17 (b) 61 (c) 71 (d) 74
  21. 21.Which number is the odd one out: 11, 83, 20, 37? (a) 11 (b) 83 (c) 20 (d) 37
  22. 22.Which number is the odd one out: 71, 34, 8, 32? (a) 71 (b) 34 (c) 8 (d) 32
  23. 23.Which number is the odd one out: 9, 71, 61, 17? (a) 9 (b) 71 (c) 61 (d) 17
  24. 24.Which number is the odd one out: 37, 98, 31, 17? (a) 37 (b) 98 (c) 31 (d) 17
  25. 25.Which number is the odd one out: 37, 82, 41, 71? (a) 37 (b) 82 (c) 41 (d) 71
  26. 26.Which number is the odd one out: 17, 97, 34, 59? (a) 17 (b) 97 (c) 34 (d) 59
  27. 27.Which number is the odd one out: 53, 8, 24, 96? (a) 53 (b) 8 (c) 24 (d) 96
  28. 28.Which number is the odd one out: 73, 76, 13, 79? (a) 73 (b) 76 (c) 13 (d) 79
  29. 29.Which number is the odd one out: 27, 39, 45, 25? (a) 27 (b) 39 (c) 45 (d) 25
  30. 30.Which number is the odd one out: 31, 29, 83, 22? (a) 31 (b) 29 (c) 83 (d) 22
  31. 31.Which number is the odd one out: 2, 56, 17, 47? (a) 2 (b) 56 (c) 17 (d) 47
  32. 32.Which number is the odd one out: 50, 64, 4, 16? (a) 50 (b) 64 (c) 4 (d) 16
  33. 33.Which number is the odd one out: 63, 89, 61, 7? (a) 63 (b) 89 (c) 61 (d) 7
  34. 34.Which number is the odd one out: 91, 21, 60, 28? (a) 91 (b) 21 (c) 60 (d) 28
  35. 35.Which number is the odd one out: 19, 11, 67, 8? (a) 19 (b) 11 (c) 67 (d) 8
  36. 36.Which number is the odd one out: 48, 85, 56, 42? (a) 48 (b) 85 (c) 56 (d) 42
  37. 37.Which number is the odd one out: 17, 87, 13, 53? (a) 17 (b) 87 (c) 13 (d) 53
  38. 38.Which number is the odd one out: 48, 24, 65, 96? (a) 48 (b) 24 (c) 65 (d) 96
  39. 39.Which number is the odd one out: 67, 87, 71, 11? (a) 67 (b) 87 (c) 71 (d) 11
  40. 40.Which number is the odd one out: 41, 26, 73, 89? (a) 41 (b) 26 (c) 73 (d) 89

Answer key

  1. 8
  2. 19
  3. 4
  4. 6
  5. 27
  6. 28
  7. 22
  8. 36
  9. 44
  10. 20
  11. 21
  12. 80
  13. 54
  14. 4
  15. 58
  16. 51
  17. 52
  18. 20
  19. 74
  20. 74
  21. 20
  22. 71
  23. 9
  24. 98
  25. 82
  26. 34
  27. 53
  28. 76
  29. 25
  30. 22
  31. 56
  32. 50
  33. 63
  34. 60
  35. 8
  36. 85
  37. 87
  38. 65
  39. 87
  40. 26

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