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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 703 · 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: 41, 79, 42, 61? (a) 41 (b) 79 (c) 42 (d) 61
  2. 2.Which number is the odd one out: 5, 65, 72, 3? (a) 5 (b) 65 (c) 72 (d) 3
  3. 3.Which number is the odd one out: 72, 6, 48, 45? (a) 72 (b) 6 (c) 48 (d) 45
  4. 4.Which number is the odd one out: 19, 4, 97, 83? (a) 19 (b) 4 (c) 97 (d) 83
  5. 5.Which number is the odd one out: 79, 97, 99, 83? (a) 79 (b) 97 (c) 99 (d) 83
  6. 6.Which number is the odd one out: 11, 75, 61, 47? (a) 11 (b) 75 (c) 61 (d) 47
  7. 7.Which number is the odd one out: 79, 4, 89, 41? (a) 79 (b) 4 (c) 89 (d) 41
  8. 8.Which number is the odd one out: 13, 61, 56, 19? (a) 13 (b) 61 (c) 56 (d) 19
  9. 9.Which number is the odd one out: 87, 18, 54, 99? (a) 87 (b) 18 (c) 54 (d) 99
  10. 10.Which number is the odd one out: 24, 37, 96, 46? (a) 24 (b) 37 (c) 96 (d) 46
  11. 11.Which number is the odd one out: 11, 4, 23, 59? (a) 11 (b) 4 (c) 23 (d) 59
  12. 12.Which number is the odd one out: 25, 13, 5, 16? (a) 25 (b) 13 (c) 5 (d) 16
  13. 13.Which number is the odd one out: 18, 90, 30, 82? (a) 18 (b) 90 (c) 30 (d) 82
  14. 14.Which number is the odd one out: 83, 11, 48, 31? (a) 83 (b) 11 (c) 48 (d) 31
  15. 15.Which number is the odd one out: 8, 67, 13, 23? (a) 8 (b) 67 (c) 13 (d) 23
  16. 16.Which number is the odd one out: 59, 20, 88, 80? (a) 59 (b) 20 (c) 88 (d) 80
  17. 17.Which number is the odd one out: 39, 65, 48, 24? (a) 39 (b) 65 (c) 48 (d) 24
  18. 18.Which number is the odd one out: 13, 43, 74, 89? (a) 13 (b) 43 (c) 74 (d) 89
  19. 19.Which number is the odd one out: 24, 54, 80, 20? (a) 24 (b) 54 (c) 80 (d) 20
  20. 20.Which number is the odd one out: 11, 67, 83, 39? (a) 11 (b) 67 (c) 83 (d) 39
  21. 21.Which number is the odd one out: 6, 2, 79, 11? (a) 6 (b) 2 (c) 79 (d) 11
  22. 22.Which number is the odd one out: 79, 89, 58, 11? (a) 79 (b) 89 (c) 58 (d) 11
  23. 23.Which number is the odd one out: 53, 13, 14, 71? (a) 53 (b) 13 (c) 14 (d) 71
  24. 24.Which number is the odd one out: 47, 12, 83, 43? (a) 47 (b) 12 (c) 83 (d) 43
  25. 25.Which number is the odd one out: 18, 54, 70, 90? (a) 18 (b) 54 (c) 70 (d) 90
  26. 26.Which number is the odd one out: 83, 97, 42, 2? (a) 83 (b) 97 (c) 42 (d) 2
  27. 27.Which number is the odd one out: 54, 19, 41, 11? (a) 54 (b) 19 (c) 41 (d) 11
  28. 28.Which number is the odd one out: 23, 71, 47, 78? (a) 23 (b) 71 (c) 47 (d) 78
  29. 29.Which number is the odd one out: 23, 33, 37, 54? (a) 23 (b) 33 (c) 37 (d) 54
  30. 30.Which number is the odd one out: 19, 67, 79, 27? (a) 19 (b) 67 (c) 79 (d) 27
  31. 31.Which number is the odd one out: 68, 58, 52, 85? (a) 68 (b) 58 (c) 52 (d) 85
  32. 32.Which number is the odd one out: 61, 97, 71, 8? (a) 61 (b) 97 (c) 71 (d) 8
  33. 33.Which number is the odd one out: 2, 43, 32, 11? (a) 2 (b) 43 (c) 32 (d) 11
  34. 34.Which number is the odd one out: 34, 59, 11, 97? (a) 34 (b) 59 (c) 11 (d) 97
  35. 35.Which number is the odd one out: 37, 3, 69, 43? (a) 37 (b) 3 (c) 69 (d) 43
  36. 36.Which number is the odd one out: 50, 75, 15, 46? (a) 50 (b) 75 (c) 15 (d) 46
  37. 37.Which number is the odd one out: 61, 84, 2, 41? (a) 61 (b) 84 (c) 2 (d) 41
  38. 38.Which number is the odd one out: 38, 61, 19, 83? (a) 38 (b) 61 (c) 19 (d) 83
  39. 39.Which number is the odd one out: 14, 29, 37, 11? (a) 14 (b) 29 (c) 37 (d) 11
  40. 40.Which number is the odd one out: 72, 10, 24, 54? (a) 72 (b) 10 (c) 24 (d) 54

Answer key

  1. 42
  2. 72
  3. 45
  4. 4
  5. 99
  6. 75
  7. 4
  8. 56
  9. 87
  10. 37
  11. 4
  12. 16
  13. 82
  14. 48
  15. 8
  16. 59
  17. 65
  18. 74
  19. 54
  20. 39
  21. 6
  22. 58
  23. 14
  24. 12
  25. 70
  26. 42
  27. 54
  28. 78
  29. 54
  30. 27
  31. 85
  32. 8
  33. 32
  34. 34
  35. 69
  36. 46
  37. 84
  38. 38
  39. 14
  40. 10

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