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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 968 · 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: 78, 17, 43, 3? (a) 78 (b) 17 (c) 43 (d) 3
  2. 2.Which number is the odd one out: 32, 11, 17, 61? (a) 32 (b) 11 (c) 17 (d) 61
  3. 3.Which number is the odd one out: 42, 7, 33, 59? (a) 42 (b) 7 (c) 33 (d) 59
  4. 4.Which number is the odd one out: 75, 15, 93, 97? (a) 75 (b) 15 (c) 93 (d) 97
  5. 5.Which number is the odd one out: 16, 64, 4, 85? (a) 16 (b) 64 (c) 4 (d) 85
  6. 6.Which number is the odd one out: 87, 54, 57, 51? (a) 87 (b) 54 (c) 57 (d) 51
  7. 7.Which number is the odd one out: 25, 16, 64, 5? (a) 25 (b) 16 (c) 64 (d) 5
  8. 8.Which number is the odd one out: 16, 7, 8, 64? (a) 16 (b) 7 (c) 8 (d) 64
  9. 9.Which number is the odd one out: 79, 83, 29, 8? (a) 79 (b) 83 (c) 29 (d) 8
  10. 10.Which number is the odd one out: 84, 31, 67, 97? (a) 84 (b) 31 (c) 67 (d) 97
  11. 11.Which number is the odd one out: 29, 47, 4, 59? (a) 29 (b) 47 (c) 4 (d) 59
  12. 12.Which number is the odd one out: 28, 11, 47, 23? (a) 28 (b) 11 (c) 47 (d) 23
  13. 13.Which number is the odd one out: 6, 92, 66, 78? (a) 6 (b) 92 (c) 66 (d) 78
  14. 14.Which number is the odd one out: 37, 60, 12, 30? (a) 37 (b) 60 (c) 12 (d) 30
  15. 15.Which number is the odd one out: 69, 83, 31, 29? (a) 69 (b) 83 (c) 31 (d) 29
  16. 16.Which number is the odd one out: 13, 31, 15, 53? (a) 13 (b) 31 (c) 15 (d) 53
  17. 17.Which number is the odd one out: 31, 23, 46, 83? (a) 31 (b) 23 (c) 46 (d) 83
  18. 18.Which number is the odd one out: 53, 18, 31, 37? (a) 53 (b) 18 (c) 31 (d) 37
  19. 19.Which number is the odd one out: 67, 53, 96, 13? (a) 67 (b) 53 (c) 96 (d) 13
  20. 20.Which number is the odd one out: 85, 41, 83, 59? (a) 85 (b) 41 (c) 83 (d) 59
  21. 21.Which number is the odd one out: 9, 27, 42, 81? (a) 9 (b) 27 (c) 42 (d) 81
  22. 22.Which number is the odd one out: 79, 70, 35, 59? (a) 79 (b) 70 (c) 35 (d) 59
  23. 23.Which number is the odd one out: 43, 33, 72, 89? (a) 43 (b) 33 (c) 72 (d) 89
  24. 24.Which number is the odd one out: 65, 72, 96, 18? (a) 65 (b) 72 (c) 96 (d) 18
  25. 25.Which number is the odd one out: 67, 73, 13, 44? (a) 67 (b) 73 (c) 13 (d) 44
  26. 26.Which number is the odd one out: 35, 65, 91, 77? (a) 35 (b) 65 (c) 91 (d) 77
  27. 27.Which number is the odd one out: 5, 95, 94, 67? (a) 5 (b) 95 (c) 94 (d) 67
  28. 28.Which number is the odd one out: 4, 53, 16, 64? (a) 4 (b) 53 (c) 16 (d) 64
  29. 29.Which number is the odd one out: 31, 53, 18, 97? (a) 31 (b) 53 (c) 18 (d) 97
  30. 30.Which number is the odd one out: 19, 59, 89, 10? (a) 19 (b) 59 (c) 89 (d) 10
  31. 31.Which number is the odd one out: 21, 11, 53, 41? (a) 21 (b) 11 (c) 53 (d) 41
  32. 32.Which number is the odd one out: 4, 64, 16, 29? (a) 4 (b) 64 (c) 16 (d) 29
  33. 33.Which number is the odd one out: 80, 19, 11, 31? (a) 80 (b) 19 (c) 11 (d) 31
  34. 34.Which number is the odd one out: 97, 37, 67, 80? (a) 97 (b) 37 (c) 67 (d) 80
  35. 35.Which number is the odd one out: 20, 52, 7, 50? (a) 20 (b) 52 (c) 7 (d) 50
  36. 36.Which number is the odd one out: 96, 7, 12, 48? (a) 96 (b) 7 (c) 12 (d) 48
  37. 37.Which number is the odd one out: 47, 31, 59, 65? (a) 47 (b) 31 (c) 59 (d) 65
  38. 38.Which number is the odd one out: 85, 25, 10, 16? (a) 85 (b) 25 (c) 10 (d) 16
  39. 39.Which number is the odd one out: 24, 61, 48, 8? (a) 24 (b) 61 (c) 48 (d) 8
  40. 40.Which number is the odd one out: 59, 2, 11, 48? (a) 59 (b) 2 (c) 11 (d) 48

Answer key

  1. 78
  2. 32
  3. 42
  4. 97
  5. 85
  6. 54
  7. 5
  8. 7
  9. 8
  10. 84
  11. 4
  12. 28
  13. 92
  14. 37
  15. 69
  16. 15
  17. 46
  18. 18
  19. 96
  20. 85
  21. 42
  22. 70
  23. 72
  24. 65
  25. 44
  26. 65
  27. 94
  28. 53
  29. 18
  30. 10
  31. 21
  32. 29
  33. 80
  34. 80
  35. 7
  36. 7
  37. 65
  38. 16
  39. 61
  40. 48

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