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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 213 · 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: 24, 97, 19, 23? (a) 24 (b) 97 (c) 19 (d) 23
  2. 2.Which number is the odd one out: 61, 50, 19, 23? (a) 61 (b) 50 (c) 19 (d) 23
  3. 3.Which number is the odd one out: 83, 12, 19, 59? (a) 83 (b) 12 (c) 19 (d) 59
  4. 4.Which number is the odd one out: 52, 97, 23, 47? (a) 52 (b) 97 (c) 23 (d) 47
  5. 5.Which number is the odd one out: 54, 99, 84, 27? (a) 54 (b) 99 (c) 84 (d) 27
  6. 6.Which number is the odd one out: 27, 99, 45, 30? (a) 27 (b) 99 (c) 45 (d) 30
  7. 7.Which number is the odd one out: 22, 16, 64, 4? (a) 22 (b) 16 (c) 64 (d) 4
  8. 8.Which number is the odd one out: 25, 71, 11, 5? (a) 25 (b) 71 (c) 11 (d) 5
  9. 9.Which number is the odd one out: 32, 24, 92, 48? (a) 32 (b) 24 (c) 92 (d) 48
  10. 10.Which number is the odd one out: 12, 76, 91, 84? (a) 12 (b) 76 (c) 91 (d) 84
  11. 11.Which number is the odd one out: 98, 35, 31, 70? (a) 98 (b) 35 (c) 31 (d) 70
  12. 12.Which number is the odd one out: 11, 83, 47, 6? (a) 11 (b) 83 (c) 47 (d) 6
  13. 13.Which number is the odd one out: 10, 57, 50, 55? (a) 10 (b) 57 (c) 50 (d) 55
  14. 14.Which number is the odd one out: 42, 83, 3, 29? (a) 42 (b) 83 (c) 3 (d) 29
  15. 15.Which number is the odd one out: 91, 98, 35, 90? (a) 91 (b) 98 (c) 35 (d) 90
  16. 16.Which number is the odd one out: 2, 13, 28, 73? (a) 2 (b) 13 (c) 28 (d) 73
  17. 17.Which number is the odd one out: 43, 53, 95, 19? (a) 43 (b) 53 (c) 95 (d) 19
  18. 18.Which number is the odd one out: 47, 11, 9, 29? (a) 47 (b) 11 (c) 9 (d) 29
  19. 19.Which number is the odd one out: 11, 73, 15, 79? (a) 11 (b) 73 (c) 15 (d) 79
  20. 20.Which number is the odd one out: 73, 61, 31, 64? (a) 73 (b) 61 (c) 31 (d) 64
  21. 21.Which number is the odd one out: 17, 79, 15, 67? (a) 17 (b) 79 (c) 15 (d) 67
  22. 22.Which number is the odd one out: 93, 66, 95, 85? (a) 93 (b) 66 (c) 95 (d) 85
  23. 23.Which number is the odd one out: 37, 9, 83, 59? (a) 37 (b) 9 (c) 83 (d) 59
  24. 24.Which number is the odd one out: 93, 19, 97, 29? (a) 93 (b) 19 (c) 97 (d) 29
  25. 25.Which number is the odd one out: 79, 37, 20, 67? (a) 79 (b) 37 (c) 20 (d) 67
  26. 26.Which number is the odd one out: 43, 73, 14, 53? (a) 43 (b) 73 (c) 14 (d) 53
  27. 27.Which number is the odd one out: 65, 23, 95, 55? (a) 65 (b) 23 (c) 95 (d) 55
  28. 28.Which number is the odd one out: 2, 47, 8, 43? (a) 2 (b) 47 (c) 8 (d) 43
  29. 29.Which number is the odd one out: 68, 21, 32, 8? (a) 68 (b) 21 (c) 32 (d) 8
  30. 30.Which number is the odd one out: 22, 83, 17, 61? (a) 22 (b) 83 (c) 17 (d) 61
  31. 31.Which number is the odd one out: 27, 71, 18, 54? (a) 27 (b) 71 (c) 18 (d) 54
  32. 32.Which number is the odd one out: 68, 71, 66, 12? (a) 68 (b) 71 (c) 66 (d) 12
  33. 33.Which number is the odd one out: 97, 46, 29, 19? (a) 97 (b) 46 (c) 29 (d) 19
  34. 34.Which number is the odd one out: 35, 14, 93, 70? (a) 35 (b) 14 (c) 93 (d) 70
  35. 35.Which number is the odd one out: 61, 64, 43, 19? (a) 61 (b) 64 (c) 43 (d) 19
  36. 36.Which number is the odd one out: 97, 94, 11, 23? (a) 97 (b) 94 (c) 11 (d) 23
  37. 37.Which number is the odd one out: 37, 29, 78, 59? (a) 37 (b) 29 (c) 78 (d) 59
  38. 38.Which number is the odd one out: 23, 15, 71, 73? (a) 23 (b) 15 (c) 71 (d) 73
  39. 39.Which number is the odd one out: 11, 59, 46, 13? (a) 11 (b) 59 (c) 46 (d) 13
  40. 40.Which number is the odd one out: 59, 67, 86, 19? (a) 59 (b) 67 (c) 86 (d) 19

Answer key

  1. 24
  2. 50
  3. 12
  4. 52
  5. 84
  6. 30
  7. 22
  8. 25
  9. 92
  10. 91
  11. 31
  12. 6
  13. 57
  14. 42
  15. 90
  16. 28
  17. 95
  18. 9
  19. 15
  20. 64
  21. 15
  22. 66
  23. 9
  24. 93
  25. 20
  26. 14
  27. 23
  28. 8
  29. 21
  30. 22
  31. 71
  32. 71
  33. 46
  34. 93
  35. 64
  36. 94
  37. 78
  38. 15
  39. 46
  40. 86

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