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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 505 · 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: 46, 23, 3, 87? (a) 46 (b) 23 (c) 3 (d) 87
  2. 2.Which number is the odd one out: 64, 16, 77, 4? (a) 64 (b) 16 (c) 77 (d) 4
  3. 3.Which number is the odd one out: 59, 97, 74, 79? (a) 59 (b) 97 (c) 74 (d) 79
  4. 4.Which number is the odd one out: 18, 30, 53, 90? (a) 18 (b) 30 (c) 53 (d) 90
  5. 5.Which number is the odd one out: 93, 67, 71, 31? (a) 93 (b) 67 (c) 71 (d) 31
  6. 6.Which number is the odd one out: 59, 36, 19, 11? (a) 59 (b) 36 (c) 19 (d) 11
  7. 7.Which number is the odd one out: 83, 41, 29, 45? (a) 83 (b) 41 (c) 29 (d) 45
  8. 8.Which number is the odd one out: 61, 73, 8, 13? (a) 61 (b) 73 (c) 8 (d) 13
  9. 9.Which number is the odd one out: 11, 93, 31, 73? (a) 11 (b) 93 (c) 31 (d) 73
  10. 10.Which number is the odd one out: 77, 31, 19, 29? (a) 77 (b) 31 (c) 19 (d) 29
  11. 11.Which number is the odd one out: 47, 59, 74, 97? (a) 47 (b) 59 (c) 74 (d) 97
  12. 12.Which number is the odd one out: 31, 84, 83, 87? (a) 31 (b) 84 (c) 83 (d) 87
  13. 13.Which number is the odd one out: 83, 41, 82, 59? (a) 83 (b) 41 (c) 82 (d) 59
  14. 14.Which number is the odd one out: 12, 65, 95, 20? (a) 12 (b) 65 (c) 95 (d) 20
  15. 15.Which number is the odd one out: 42, 70, 98, 60? (a) 42 (b) 70 (c) 98 (d) 60
  16. 16.Which number is the odd one out: 8, 68, 88, 5? (a) 8 (b) 68 (c) 88 (d) 5
  17. 17.Which number is the odd one out: 97, 29, 43, 50? (a) 97 (b) 29 (c) 43 (d) 50
  18. 18.Which number is the odd one out: 29, 59, 83, 12? (a) 29 (b) 59 (c) 83 (d) 12
  19. 19.Which number is the odd one out: 3, 37, 63, 59? (a) 3 (b) 37 (c) 63 (d) 59
  20. 20.Which number is the odd one out: 79, 37, 35, 29? (a) 79 (b) 37 (c) 35 (d) 29
  21. 21.Which number is the odd one out: 62, 67, 37, 23? (a) 62 (b) 67 (c) 37 (d) 23
  22. 22.Which number is the odd one out: 80, 14, 42, 84? (a) 80 (b) 14 (c) 42 (d) 84
  23. 23.Which number is the odd one out: 24, 30, 76, 80? (a) 24 (b) 30 (c) 76 (d) 80
  24. 24.Which number is the odd one out: 21, 63, 18, 54? (a) 21 (b) 63 (c) 18 (d) 54
  25. 25.Which number is the odd one out: 71, 83, 53, 42? (a) 71 (b) 83 (c) 53 (d) 42
  26. 26.Which number is the odd one out: 37, 76, 17, 19? (a) 37 (b) 76 (c) 17 (d) 19
  27. 27.Which number is the odd one out: 20, 76, 44, 30? (a) 20 (b) 76 (c) 44 (d) 30
  28. 28.Which number is the odd one out: 34, 2, 97, 73? (a) 34 (b) 2 (c) 97 (d) 73
  29. 29.Which number is the odd one out: 84, 91, 24, 96? (a) 84 (b) 91 (c) 24 (d) 96
  30. 30.Which number is the odd one out: 43, 54, 3, 79? (a) 43 (b) 54 (c) 3 (d) 79
  31. 31.Which number is the odd one out: 31, 74, 17, 59? (a) 31 (b) 74 (c) 17 (d) 59
  32. 32.Which number is the odd one out: 48, 90, 8, 88? (a) 48 (b) 90 (c) 8 (d) 88
  33. 33.Which number is the odd one out: 28, 77, 67, 31? (a) 28 (b) 77 (c) 67 (d) 31
  34. 34.Which number is the odd one out: 41, 61, 31, 77? (a) 41 (b) 61 (c) 31 (d) 77
  35. 35.Which number is the odd one out: 18, 6, 5, 90? (a) 18 (b) 6 (c) 5 (d) 90
  36. 36.Which number is the odd one out: 13, 22, 29, 89? (a) 13 (b) 22 (c) 29 (d) 89
  37. 37.Which number is the odd one out: 33, 6, 23, 37? (a) 33 (b) 6 (c) 23 (d) 37
  38. 38.Which number is the odd one out: 5, 23, 53, 20? (a) 5 (b) 23 (c) 53 (d) 20
  39. 39.Which number is the odd one out: 55, 43, 79, 61? (a) 55 (b) 43 (c) 79 (d) 61
  40. 40.Which number is the odd one out: 29, 37, 25, 43? (a) 29 (b) 37 (c) 25 (d) 43

Answer key

  1. 46
  2. 77
  3. 74
  4. 53
  5. 93
  6. 36
  7. 45
  8. 8
  9. 93
  10. 77
  11. 74
  12. 84
  13. 82
  14. 12
  15. 60
  16. 5
  17. 50
  18. 12
  19. 63
  20. 35
  21. 62
  22. 80
  23. 30
  24. 21
  25. 42
  26. 76
  27. 30
  28. 34
  29. 91
  30. 54
  31. 74
  32. 90
  33. 28
  34. 77
  35. 5
  36. 22
  37. 6
  38. 20
  39. 55
  40. 25

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