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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 962 · 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: 87, 6, 43, 67? (a) 87 (b) 6 (c) 43 (d) 67
  2. 2.Which number is the odd one out: 41, 45, 61, 17? (a) 41 (b) 45 (c) 61 (d) 17
  3. 3.Which number is the odd one out: 90, 45, 29, 54? (a) 90 (b) 45 (c) 29 (d) 54
  4. 4.Which number is the odd one out: 59, 73, 2, 16? (a) 59 (b) 73 (c) 2 (d) 16
  5. 5.Which number is the odd one out: 31, 17, 14, 11? (a) 31 (b) 17 (c) 14 (d) 11
  6. 6.Which number is the odd one out: 89, 12, 79, 13? (a) 89 (b) 12 (c) 79 (d) 13
  7. 7.Which number is the odd one out: 71, 89, 37, 14? (a) 71 (b) 89 (c) 37 (d) 14
  8. 8.Which number is the odd one out: 76, 97, 23, 79? (a) 76 (b) 97 (c) 23 (d) 79
  9. 9.Which number is the odd one out: 95, 40, 69, 80? (a) 95 (b) 40 (c) 69 (d) 80
  10. 10.Which number is the odd one out: 61, 53, 97, 6? (a) 61 (b) 53 (c) 97 (d) 6
  11. 11.Which number is the odd one out: 52, 8, 61, 32? (a) 52 (b) 8 (c) 61 (d) 32
  12. 12.Which number is the odd one out: 24, 37, 60, 80? (a) 24 (b) 37 (c) 60 (d) 80
  13. 13.Which number is the odd one out: 96, 48, 63, 18? (a) 96 (b) 48 (c) 63 (d) 18
  14. 14.Which number is the odd one out: 11, 79, 41, 4? (a) 11 (b) 79 (c) 41 (d) 4
  15. 15.Which number is the odd one out: 76, 73, 11, 61? (a) 76 (b) 73 (c) 11 (d) 61
  16. 16.Which number is the odd one out: 97, 55, 53, 5? (a) 97 (b) 55 (c) 53 (d) 5
  17. 17.Which number is the odd one out: 31, 83, 73, 49? (a) 31 (b) 83 (c) 73 (d) 49
  18. 18.Which number is the odd one out: 47, 61, 2, 12? (a) 47 (b) 61 (c) 2 (d) 12
  19. 19.Which number is the odd one out: 64, 23, 97, 37? (a) 64 (b) 23 (c) 97 (d) 37
  20. 20.Which number is the odd one out: 53, 66, 3, 19? (a) 53 (b) 66 (c) 3 (d) 19
  21. 21.Which number is the odd one out: 17, 73, 24, 89? (a) 17 (b) 73 (c) 24 (d) 89
  22. 22.Which number is the odd one out: 35, 23, 83, 11? (a) 35 (b) 23 (c) 83 (d) 11
  23. 23.Which number is the odd one out: 90, 99, 35, 54? (a) 90 (b) 99 (c) 35 (d) 54
  24. 24.Which number is the odd one out: 12, 73, 17, 61? (a) 12 (b) 73 (c) 17 (d) 61
  25. 25.Which number is the odd one out: 11, 56, 29, 53? (a) 11 (b) 56 (c) 29 (d) 53
  26. 26.Which number is the odd one out: 47, 97, 35, 53? (a) 47 (b) 97 (c) 35 (d) 53
  27. 27.Which number is the odd one out: 15, 8, 40, 88? (a) 15 (b) 8 (c) 40 (d) 88
  28. 28.Which number is the odd one out: 2, 11, 60, 17? (a) 2 (b) 11 (c) 60 (d) 17
  29. 29.Which number is the odd one out: 83, 41, 64, 17? (a) 83 (b) 41 (c) 64 (d) 17
  30. 30.Which number is the odd one out: 4, 97, 2, 43? (a) 4 (b) 97 (c) 2 (d) 43
  31. 31.Which number is the odd one out: 67, 89, 65, 97? (a) 67 (b) 89 (c) 65 (d) 97
  32. 32.Which number is the odd one out: 90, 40, 88, 8? (a) 90 (b) 40 (c) 88 (d) 8
  33. 33.Which number is the odd one out: 31, 28, 56, 32? (a) 31 (b) 28 (c) 56 (d) 32
  34. 34.Which number is the odd one out: 62, 67, 71, 29? (a) 62 (b) 67 (c) 71 (d) 29
  35. 35.Which number is the odd one out: 73, 55, 23, 83? (a) 73 (b) 55 (c) 23 (d) 83
  36. 36.Which number is the odd one out: 48, 32, 88, 30? (a) 48 (b) 32 (c) 88 (d) 30
  37. 37.Which number is the odd one out: 95, 11, 89, 37? (a) 95 (b) 11 (c) 89 (d) 37
  38. 38.Which number is the odd one out: 40, 8, 88, 85? (a) 40 (b) 8 (c) 88 (d) 85
  39. 39.Which number is the odd one out: 41, 59, 27, 37? (a) 41 (b) 59 (c) 27 (d) 37
  40. 40.Which number is the odd one out: 2, 23, 89, 74? (a) 2 (b) 23 (c) 89 (d) 74

Answer key

  1. 6
  2. 45
  3. 29
  4. 16
  5. 14
  6. 12
  7. 14
  8. 76
  9. 69
  10. 6
  11. 61
  12. 37
  13. 63
  14. 4
  15. 76
  16. 55
  17. 49
  18. 12
  19. 64
  20. 66
  21. 24
  22. 35
  23. 35
  24. 12
  25. 56
  26. 35
  27. 15
  28. 60
  29. 64
  30. 4
  31. 65
  32. 90
  33. 31
  34. 62
  35. 55
  36. 30
  37. 95
  38. 85
  39. 27
  40. 74

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