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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 584 · 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: 29, 41, 21, 83? (a) 29 (b) 41 (c) 21 (d) 83
  2. 2.Which number is the odd one out: 73, 54, 19, 71? (a) 73 (b) 54 (c) 19 (d) 71
  3. 3.Which number is the odd one out: 42, 80, 6, 84? (a) 42 (b) 80 (c) 6 (d) 84
  4. 4.Which number is the odd one out: 23, 53, 91, 42? (a) 23 (b) 53 (c) 91 (d) 42
  5. 5.Which number is the odd one out: 83, 41, 52, 97? (a) 83 (b) 41 (c) 52 (d) 97
  6. 6.Which number is the odd one out: 41, 89, 21, 73? (a) 41 (b) 89 (c) 21 (d) 73
  7. 7.Which number is the odd one out: 41, 47, 18, 67? (a) 41 (b) 47 (c) 18 (d) 67
  8. 8.Which number is the odd one out: 31, 55, 29, 97? (a) 31 (b) 55 (c) 29 (d) 97
  9. 9.Which number is the odd one out: 71, 5, 10, 47? (a) 71 (b) 5 (c) 10 (d) 47
  10. 10.Which number is the odd one out: 56, 88, 14, 8? (a) 56 (b) 88 (c) 14 (d) 8
  11. 11.Which number is the odd one out: 71, 13, 91, 59? (a) 71 (b) 13 (c) 91 (d) 59
  12. 12.Which number is the odd one out: 24, 96, 4, 32? (a) 24 (b) 96 (c) 4 (d) 32
  13. 13.Which number is the odd one out: 96, 88, 82, 24? (a) 96 (b) 88 (c) 82 (d) 24
  14. 14.Which number is the odd one out: 9, 10, 81, 25? (a) 9 (b) 10 (c) 81 (d) 25
  15. 15.Which number is the odd one out: 41, 28, 59, 53? (a) 41 (b) 28 (c) 59 (d) 53
  16. 16.Which number is the odd one out: 32, 25, 60, 96? (a) 32 (b) 25 (c) 60 (d) 96
  17. 17.Which number is the odd one out: 53, 60, 3, 43? (a) 53 (b) 60 (c) 3 (d) 43
  18. 18.Which number is the odd one out: 19, 17, 46, 41? (a) 19 (b) 17 (c) 46 (d) 41
  19. 19.Which number is the odd one out: 20, 73, 89, 47? (a) 20 (b) 73 (c) 89 (d) 47
  20. 20.Which number is the odd one out: 44, 83, 17, 59? (a) 44 (b) 83 (c) 17 (d) 59
  21. 21.Which number is the odd one out: 29, 2, 64, 73? (a) 29 (b) 2 (c) 64 (d) 73
  22. 22.Which number is the odd one out: 68, 24, 96, 50? (a) 68 (b) 24 (c) 96 (d) 50
  23. 23.Which number is the odd one out: 28, 23, 29, 59? (a) 28 (b) 23 (c) 29 (d) 59
  24. 24.Which number is the odd one out: 11, 79, 37, 39? (a) 11 (b) 79 (c) 37 (d) 39
  25. 25.Which number is the odd one out: 11, 41, 6, 3? (a) 11 (b) 41 (c) 6 (d) 3
  26. 26.Which number is the odd one out: 93, 47, 84, 97? (a) 93 (b) 47 (c) 84 (d) 97
  27. 27.Which number is the odd one out: 81, 16, 88, 9? (a) 81 (b) 16 (c) 88 (d) 9
  28. 28.Which number is the odd one out: 70, 95, 56, 85? (a) 70 (b) 95 (c) 56 (d) 85
  29. 29.Which number is the odd one out: 4, 16, 46, 64? (a) 4 (b) 16 (c) 46 (d) 64
  30. 30.Which number is the odd one out: 43, 97, 17, 25? (a) 43 (b) 97 (c) 17 (d) 25
  31. 31.Which number is the odd one out: 61, 2, 23, 34? (a) 61 (b) 2 (c) 23 (d) 34
  32. 32.Which number is the odd one out: 97, 71, 40, 23? (a) 97 (b) 71 (c) 40 (d) 23
  33. 33.Which number is the odd one out: 59, 31, 64, 53? (a) 59 (b) 31 (c) 64 (d) 53
  34. 34.Which number is the odd one out: 97, 69, 2, 93? (a) 97 (b) 69 (c) 2 (d) 93
  35. 35.Which number is the odd one out: 97, 4, 17, 67? (a) 97 (b) 4 (c) 17 (d) 67
  36. 36.Which number is the odd one out: 24, 48, 12, 69? (a) 24 (b) 48 (c) 12 (d) 69
  37. 37.Which number is the odd one out: 24, 59, 2, 83? (a) 24 (b) 59 (c) 2 (d) 83
  38. 38.Which number is the odd one out: 14, 80, 32, 40? (a) 14 (b) 80 (c) 32 (d) 40
  39. 39.Which number is the odd one out: 36, 19, 23, 89? (a) 36 (b) 19 (c) 23 (d) 89
  40. 40.Which number is the odd one out: 67, 24, 8, 48? (a) 67 (b) 24 (c) 8 (d) 48

Answer key

  1. 21
  2. 54
  3. 80
  4. 42
  5. 52
  6. 21
  7. 18
  8. 55
  9. 10
  10. 14
  11. 91
  12. 4
  13. 82
  14. 10
  15. 28
  16. 25
  17. 60
  18. 46
  19. 20
  20. 44
  21. 64
  22. 50
  23. 28
  24. 39
  25. 6
  26. 84
  27. 88
  28. 56
  29. 46
  30. 25
  31. 34
  32. 40
  33. 64
  34. 2
  35. 4
  36. 69
  37. 24
  38. 14
  39. 36
  40. 67

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