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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 108 · 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: 40, 47, 80, 8? (a) 40 (b) 47 (c) 80 (d) 8
  2. 2.Which number is the odd one out: 25, 55, 9, 85? (a) 25 (b) 55 (c) 9 (d) 85
  3. 3.Which number is the odd one out: 48, 86, 24, 96? (a) 48 (b) 86 (c) 24 (d) 96
  4. 4.Which number is the odd one out: 17, 53, 47, 14? (a) 17 (b) 53 (c) 47 (d) 14
  5. 5.Which number is the odd one out: 23, 89, 11, 88? (a) 23 (b) 89 (c) 11 (d) 88
  6. 6.Which number is the odd one out: 31, 17, 53, 77? (a) 31 (b) 17 (c) 53 (d) 77
  7. 7.Which number is the odd one out: 31, 11, 3, 69? (a) 31 (b) 11 (c) 3 (d) 69
  8. 8.Which number is the odd one out: 18, 11, 71, 19? (a) 18 (b) 11 (c) 71 (d) 19
  9. 9.Which number is the odd one out: 95, 85, 29, 5? (a) 95 (b) 85 (c) 29 (d) 5
  10. 10.Which number is the odd one out: 53, 79, 77, 19? (a) 53 (b) 79 (c) 77 (d) 19
  11. 11.Which number is the odd one out: 19, 22, 67, 17? (a) 19 (b) 22 (c) 67 (d) 17
  12. 12.Which number is the odd one out: 98, 7, 31, 79? (a) 98 (b) 7 (c) 31 (d) 79
  13. 13.Which number is the odd one out: 97, 12, 3, 2? (a) 97 (b) 12 (c) 3 (d) 2
  14. 14.Which number is the odd one out: 31, 13, 47, 20? (a) 31 (b) 13 (c) 47 (d) 20
  15. 15.Which number is the odd one out: 16, 4, 64, 70? (a) 16 (b) 4 (c) 64 (d) 70
  16. 16.Which number is the odd one out: 17, 4, 79, 2? (a) 17 (b) 4 (c) 79 (d) 2
  17. 17.Which number is the odd one out: 67, 27, 37, 79? (a) 67 (b) 27 (c) 37 (d) 79
  18. 18.Which number is the odd one out: 80, 5, 8, 88? (a) 80 (b) 5 (c) 8 (d) 88
  19. 19.Which number is the odd one out: 67, 71, 50, 89? (a) 67 (b) 71 (c) 50 (d) 89
  20. 20.Which number is the odd one out: 13, 24, 19, 41? (a) 13 (b) 24 (c) 19 (d) 41
  21. 21.Which number is the odd one out: 66, 6, 23, 78? (a) 66 (b) 6 (c) 23 (d) 78
  22. 22.Which number is the odd one out: 19, 61, 2, 22? (a) 19 (b) 61 (c) 2 (d) 22
  23. 23.Which number is the odd one out: 18, 81, 9, 96? (a) 18 (b) 81 (c) 9 (d) 96
  24. 24.Which number is the odd one out: 29, 41, 37, 6? (a) 29 (b) 41 (c) 37 (d) 6
  25. 25.Which number is the odd one out: 95, 34, 5, 53? (a) 95 (b) 34 (c) 5 (d) 53
  26. 26.Which number is the odd one out: 41, 53, 14, 37? (a) 41 (b) 53 (c) 14 (d) 37
  27. 27.Which number is the odd one out: 20, 67, 83, 97? (a) 20 (b) 67 (c) 83 (d) 97
  28. 28.Which number is the odd one out: 56, 90, 54, 60? (a) 56 (b) 90 (c) 54 (d) 60
  29. 29.Which number is the odd one out: 3, 23, 84, 2? (a) 3 (b) 23 (c) 84 (d) 2
  30. 30.Which number is the odd one out: 56, 55, 80, 95? (a) 56 (b) 55 (c) 80 (d) 95
  31. 31.Which number is the odd one out: 33, 8, 88, 32? (a) 33 (b) 8 (c) 88 (d) 32
  32. 32.Which number is the odd one out: 20, 32, 80, 53? (a) 20 (b) 32 (c) 80 (d) 53
  33. 33.Which number is the odd one out: 13, 11, 16, 97? (a) 13 (b) 11 (c) 16 (d) 97
  34. 34.Which number is the odd one out: 18, 79, 67, 17? (a) 18 (b) 79 (c) 67 (d) 17
  35. 35.Which number is the odd one out: 16, 64, 33, 8? (a) 16 (b) 64 (c) 33 (d) 8
  36. 36.Which number is the odd one out: 71, 73, 18, 13? (a) 71 (b) 73 (c) 18 (d) 13
  37. 37.Which number is the odd one out: 49, 56, 16, 8? (a) 49 (b) 56 (c) 16 (d) 8
  38. 38.Which number is the odd one out: 11, 23, 68, 17? (a) 11 (b) 23 (c) 68 (d) 17
  39. 39.Which number is the odd one out: 10, 32, 24, 48? (a) 10 (b) 32 (c) 24 (d) 48
  40. 40.Which number is the odd one out: 16, 19, 88, 64? (a) 16 (b) 19 (c) 88 (d) 64

Answer key

  1. 47
  2. 9
  3. 86
  4. 14
  5. 88
  6. 77
  7. 69
  8. 18
  9. 29
  10. 77
  11. 22
  12. 98
  13. 12
  14. 20
  15. 70
  16. 4
  17. 27
  18. 5
  19. 50
  20. 24
  21. 23
  22. 22
  23. 96
  24. 6
  25. 34
  26. 14
  27. 20
  28. 56
  29. 84
  30. 56
  31. 33
  32. 53
  33. 16
  34. 18
  35. 33
  36. 18
  37. 49
  38. 68
  39. 10
  40. 19

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