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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 746 · 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: 37, 13, 71, 18? (a) 37 (b) 13 (c) 71 (d) 18
  2. 2.Which number is the odd one out: 69, 23, 89, 59? (a) 69 (b) 23 (c) 89 (d) 59
  3. 3.Which number is the odd one out: 55, 19, 17, 79? (a) 55 (b) 19 (c) 17 (d) 79
  4. 4.Which number is the odd one out: 17, 23, 67, 87? (a) 17 (b) 23 (c) 67 (d) 87
  5. 5.Which number is the odd one out: 23, 79, 19, 74? (a) 23 (b) 79 (c) 19 (d) 74
  6. 6.Which number is the odd one out: 9, 81, 4, 40? (a) 9 (b) 81 (c) 4 (d) 40
  7. 7.Which number is the odd one out: 89, 97, 28, 61? (a) 89 (b) 97 (c) 28 (d) 61
  8. 8.Which number is the odd one out: 23, 94, 19, 53? (a) 23 (b) 94 (c) 19 (d) 53
  9. 9.Which number is the odd one out: 8, 29, 43, 67? (a) 8 (b) 29 (c) 43 (d) 67
  10. 10.Which number is the odd one out: 33, 23, 67, 79? (a) 33 (b) 23 (c) 67 (d) 79
  11. 11.Which number is the odd one out: 96, 66, 88, 8? (a) 96 (b) 66 (c) 88 (d) 8
  12. 12.Which number is the odd one out: 66, 12, 6, 16? (a) 66 (b) 12 (c) 6 (d) 16
  13. 13.Which number is the odd one out: 13, 42, 19, 47? (a) 13 (b) 42 (c) 19 (d) 47
  14. 14.Which number is the odd one out: 29, 63, 7, 13? (a) 29 (b) 63 (c) 7 (d) 13
  15. 15.Which number is the odd one out: 75, 65, 85, 27? (a) 75 (b) 65 (c) 85 (d) 27
  16. 16.Which number is the odd one out: 97, 29, 67, 91? (a) 97 (b) 29 (c) 67 (d) 91
  17. 17.Which number is the odd one out: 47, 61, 94, 53? (a) 47 (b) 61 (c) 94 (d) 53
  18. 18.Which number is the odd one out: 88, 94, 40, 80? (a) 88 (b) 94 (c) 40 (d) 80
  19. 19.Which number is the odd one out: 64, 59, 71, 47? (a) 64 (b) 59 (c) 71 (d) 47
  20. 20.Which number is the odd one out: 77, 27, 18, 54? (a) 77 (b) 27 (c) 18 (d) 54
  21. 21.Which number is the odd one out: 47, 11, 59, 54? (a) 47 (b) 11 (c) 59 (d) 54
  22. 22.Which number is the odd one out: 92, 19, 47, 79? (a) 92 (b) 19 (c) 47 (d) 79
  23. 23.Which number is the odd one out: 71, 5, 55, 47? (a) 71 (b) 5 (c) 55 (d) 47
  24. 24.Which number is the odd one out: 61, 21, 71, 17? (a) 61 (b) 21 (c) 71 (d) 17
  25. 25.Which number is the odd one out: 28, 67, 31, 61? (a) 28 (b) 67 (c) 31 (d) 61
  26. 26.Which number is the odd one out: 53, 67, 17, 64? (a) 53 (b) 67 (c) 17 (d) 64
  27. 27.Which number is the odd one out: 36, 81, 12, 27? (a) 36 (b) 81 (c) 12 (d) 27
  28. 28.Which number is the odd one out: 53, 59, 43, 50? (a) 53 (b) 59 (c) 43 (d) 50
  29. 29.Which number is the odd one out: 64, 94, 16, 69? (a) 64 (b) 94 (c) 16 (d) 69
  30. 30.Which number is the odd one out: 61, 32, 73, 53? (a) 61 (b) 32 (c) 73 (d) 53
  31. 31.Which number is the odd one out: 13, 31, 49, 71? (a) 13 (b) 31 (c) 49 (d) 71
  32. 32.Which number is the odd one out: 45, 63, 70, 27? (a) 45 (b) 63 (c) 70 (d) 27
  33. 33.Which number is the odd one out: 37, 97, 53, 62? (a) 37 (b) 97 (c) 53 (d) 62
  34. 34.Which number is the odd one out: 33, 13, 24, 97? (a) 33 (b) 13 (c) 24 (d) 97
  35. 35.Which number is the odd one out: 3, 12, 79, 17? (a) 3 (b) 12 (c) 79 (d) 17
  36. 36.Which number is the odd one out: 53, 59, 40, 73? (a) 53 (b) 59 (c) 40 (d) 73
  37. 37.Which number is the odd one out: 41, 70, 19, 17? (a) 41 (b) 70 (c) 19 (d) 17
  38. 38.Which number is the odd one out: 64, 27, 68, 16? (a) 64 (b) 27 (c) 68 (d) 16
  39. 39.Which number is the odd one out: 68, 41, 44, 46? (a) 68 (b) 41 (c) 44 (d) 46
  40. 40.Which number is the odd one out: 41, 11, 19, 96? (a) 41 (b) 11 (c) 19 (d) 96

Answer key

  1. 18
  2. 69
  3. 55
  4. 87
  5. 74
  6. 40
  7. 28
  8. 94
  9. 8
  10. 33
  11. 66
  12. 16
  13. 42
  14. 63
  15. 27
  16. 91
  17. 94
  18. 94
  19. 64
  20. 77
  21. 54
  22. 92
  23. 55
  24. 21
  25. 28
  26. 64
  27. 12
  28. 50
  29. 69
  30. 32
  31. 49
  32. 70
  33. 62
  34. 24
  35. 12
  36. 40
  37. 70
  38. 27
  39. 41
  40. 96

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