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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 735 · 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: 73, 86, 2, 23? (a) 73 (b) 86 (c) 2 (d) 23
  2. 2.Which number is the odd one out: 83, 89, 88, 61? (a) 83 (b) 89 (c) 88 (d) 61
  3. 3.Which number is the odd one out: 47, 20, 40, 8? (a) 47 (b) 20 (c) 40 (d) 8
  4. 4.Which number is the odd one out: 67, 47, 6, 29? (a) 67 (b) 47 (c) 6 (d) 29
  5. 5.Which number is the odd one out: 90, 68, 52, 60? (a) 90 (b) 68 (c) 52 (d) 60
  6. 6.Which number is the odd one out: 11, 83, 25, 67? (a) 11 (b) 83 (c) 25 (d) 67
  7. 7.Which number is the odd one out: 13, 25, 17, 41? (a) 13 (b) 25 (c) 17 (d) 41
  8. 8.Which number is the odd one out: 3, 96, 83, 13? (a) 3 (b) 96 (c) 83 (d) 13
  9. 9.Which number is the odd one out: 40, 29, 95, 23? (a) 40 (b) 29 (c) 95 (d) 23
  10. 10.Which number is the odd one out: 3, 2, 6, 73? (a) 3 (b) 2 (c) 6 (d) 73
  11. 11.Which number is the odd one out: 77, 47, 13, 31? (a) 77 (b) 47 (c) 13 (d) 31
  12. 12.Which number is the odd one out: 11, 19, 73, 57? (a) 11 (b) 19 (c) 73 (d) 57
  13. 13.Which number is the odd one out: 24, 10, 6, 96? (a) 24 (b) 10 (c) 6 (d) 96
  14. 14.Which number is the odd one out: 89, 43, 63, 97? (a) 89 (b) 43 (c) 63 (d) 97
  15. 15.Which number is the odd one out: 75, 3, 19, 23? (a) 75 (b) 3 (c) 19 (d) 23
  16. 16.Which number is the odd one out: 19, 69, 13, 23? (a) 19 (b) 69 (c) 13 (d) 23
  17. 17.Which number is the odd one out: 78, 40, 12, 80? (a) 78 (b) 40 (c) 12 (d) 80
  18. 18.Which number is the odd one out: 13, 67, 88, 73? (a) 13 (b) 67 (c) 88 (d) 73
  19. 19.Which number is the odd one out: 73, 37, 19, 87? (a) 73 (b) 37 (c) 19 (d) 87
  20. 20.Which number is the odd one out: 41, 61, 97, 18? (a) 41 (b) 61 (c) 97 (d) 18
  21. 21.Which number is the odd one out: 24, 60, 48, 55? (a) 24 (b) 60 (c) 48 (d) 55
  22. 22.Which number is the odd one out: 97, 23, 19, 49? (a) 97 (b) 23 (c) 19 (d) 49
  23. 23.Which number is the odd one out: 67, 97, 95, 89? (a) 67 (b) 97 (c) 95 (d) 89
  24. 24.Which number is the odd one out: 24, 94, 48, 96? (a) 24 (b) 94 (c) 48 (d) 96
  25. 25.Which number is the odd one out: 61, 97, 80, 89? (a) 61 (b) 97 (c) 80 (d) 89
  26. 26.Which number is the odd one out: 49, 96, 72, 36? (a) 49 (b) 96 (c) 72 (d) 36
  27. 27.Which number is the odd one out: 27, 55, 54, 18? (a) 27 (b) 55 (c) 54 (d) 18
  28. 28.Which number is the odd one out: 92, 52, 12, 6? (a) 92 (b) 52 (c) 12 (d) 6
  29. 29.Which number is the odd one out: 8, 43, 23, 79? (a) 8 (b) 43 (c) 23 (d) 79
  30. 30.Which number is the odd one out: 95, 98, 70, 77? (a) 95 (b) 98 (c) 70 (d) 77
  31. 31.Which number is the odd one out: 20, 95, 73, 31? (a) 20 (b) 95 (c) 73 (d) 31
  32. 32.Which number is the odd one out: 24, 96, 6, 48? (a) 24 (b) 96 (c) 6 (d) 48
  33. 33.Which number is the odd one out: 71, 47, 29, 34? (a) 71 (b) 47 (c) 29 (d) 34
  34. 34.Which number is the odd one out: 48, 88, 96, 17? (a) 48 (b) 88 (c) 96 (d) 17
  35. 35.Which number is the odd one out: 67, 89, 32, 41? (a) 67 (b) 89 (c) 32 (d) 41
  36. 36.Which number is the odd one out: 61, 31, 66, 73? (a) 61 (b) 31 (c) 66 (d) 73
  37. 37.Which number is the odd one out: 86, 94, 82, 31? (a) 86 (b) 94 (c) 82 (d) 31
  38. 38.Which number is the odd one out: 19, 31, 67, 20? (a) 19 (b) 31 (c) 67 (d) 20
  39. 39.Which number is the odd one out: 57, 17, 29, 71? (a) 57 (b) 17 (c) 29 (d) 71
  40. 40.Which number is the odd one out: 47, 17, 19, 36? (a) 47 (b) 17 (c) 19 (d) 36

Answer key

  1. 86
  2. 88
  3. 47
  4. 6
  5. 90
  6. 25
  7. 25
  8. 96
  9. 40
  10. 6
  11. 77
  12. 57
  13. 10
  14. 63
  15. 75
  16. 69
  17. 78
  18. 88
  19. 87
  20. 18
  21. 55
  22. 49
  23. 95
  24. 94
  25. 80
  26. 49
  27. 55
  28. 6
  29. 8
  30. 95
  31. 20
  32. 6
  33. 34
  34. 17
  35. 32
  36. 66
  37. 31
  38. 20
  39. 57
  40. 36

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