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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 659 · 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: 48, 37, 61, 53? (a) 48 (b) 37 (c) 61 (d) 53
  2. 2.Which number is the odd one out: 67, 59, 20, 97? (a) 67 (b) 59 (c) 20 (d) 97
  3. 3.Which number is the odd one out: 67, 83, 30, 31? (a) 67 (b) 83 (c) 30 (d) 31
  4. 4.Which number is the odd one out: 8, 24, 47, 96? (a) 8 (b) 24 (c) 47 (d) 96
  5. 5.Which number is the odd one out: 96, 62, 78, 24? (a) 96 (b) 62 (c) 78 (d) 24
  6. 6.Which number is the odd one out: 15, 2, 11, 75? (a) 15 (b) 2 (c) 11 (d) 75
  7. 7.Which number is the odd one out: 73, 29, 45, 83? (a) 73 (b) 29 (c) 45 (d) 83
  8. 8.Which number is the odd one out: 25, 31, 61, 47? (a) 25 (b) 31 (c) 61 (d) 47
  9. 9.Which number is the odd one out: 73, 83, 54, 67? (a) 73 (b) 83 (c) 54 (d) 67
  10. 10.Which number is the odd one out: 25, 44, 20, 68? (a) 25 (b) 44 (c) 20 (d) 68
  11. 11.Which number is the odd one out: 16, 86, 4, 64? (a) 16 (b) 86 (c) 4 (d) 64
  12. 12.Which number is the odd one out: 15, 81, 99, 9? (a) 15 (b) 81 (c) 99 (d) 9
  13. 13.Which number is the odd one out: 2, 61, 17, 36? (a) 2 (b) 61 (c) 17 (d) 36
  14. 14.Which number is the odd one out: 12, 17, 3, 71? (a) 12 (b) 17 (c) 3 (d) 71
  15. 15.Which number is the odd one out: 59, 97, 73, 22? (a) 59 (b) 97 (c) 73 (d) 22
  16. 16.Which number is the odd one out: 14, 21, 78, 77? (a) 14 (b) 21 (c) 78 (d) 77
  17. 17.Which number is the odd one out: 41, 89, 29, 25? (a) 41 (b) 89 (c) 29 (d) 25
  18. 18.Which number is the odd one out: 17, 87, 29, 37? (a) 17 (b) 87 (c) 29 (d) 37
  19. 19.Which number is the odd one out: 54, 90, 85, 27? (a) 54 (b) 90 (c) 85 (d) 27
  20. 20.Which number is the odd one out: 79, 24, 67, 89? (a) 79 (b) 24 (c) 67 (d) 89
  21. 21.Which number is the odd one out: 73, 3, 51, 89? (a) 73 (b) 3 (c) 51 (d) 89
  22. 22.Which number is the odd one out: 31, 97, 94, 17? (a) 31 (b) 97 (c) 94 (d) 17
  23. 23.Which number is the odd one out: 12, 2, 61, 59? (a) 12 (b) 2 (c) 61 (d) 59
  24. 24.Which number is the odd one out: 55, 50, 95, 32? (a) 55 (b) 50 (c) 95 (d) 32
  25. 25.Which number is the odd one out: 36, 9, 48, 24? (a) 36 (b) 9 (c) 48 (d) 24
  26. 26.Which number is the odd one out: 79, 73, 9, 13? (a) 79 (b) 73 (c) 9 (d) 13
  27. 27.Which number is the odd one out: 79, 4, 97, 23? (a) 79 (b) 4 (c) 97 (d) 23
  28. 28.Which number is the odd one out: 14, 4, 16, 64? (a) 14 (b) 4 (c) 16 (d) 64
  29. 29.Which number is the odd one out: 89, 19, 2, 50? (a) 89 (b) 19 (c) 2 (d) 50
  30. 30.Which number is the odd one out: 24, 2, 48, 66? (a) 24 (b) 2 (c) 48 (d) 66
  31. 31.Which number is the odd one out: 23, 29, 56, 89? (a) 23 (b) 29 (c) 56 (d) 89
  32. 32.Which number is the odd one out: 59, 56, 31, 61? (a) 59 (b) 56 (c) 31 (d) 61
  33. 33.Which number is the odd one out: 2, 60, 67, 23? (a) 2 (b) 60 (c) 67 (d) 23
  34. 34.Which number is the odd one out: 19, 8, 61, 2? (a) 19 (b) 8 (c) 61 (d) 2
  35. 35.Which number is the odd one out: 30, 53, 23, 73? (a) 30 (b) 53 (c) 23 (d) 73
  36. 36.Which number is the odd one out: 17, 13, 38, 19? (a) 17 (b) 13 (c) 38 (d) 19
  37. 37.Which number is the odd one out: 56, 61, 13, 41? (a) 56 (b) 61 (c) 13 (d) 41
  38. 38.Which number is the odd one out: 29, 13, 27, 61? (a) 29 (b) 13 (c) 27 (d) 61
  39. 39.Which number is the odd one out: 97, 73, 67, 16? (a) 97 (b) 73 (c) 67 (d) 16
  40. 40.Which number is the odd one out: 11, 39, 90, 97? (a) 11 (b) 39 (c) 90 (d) 97

Answer key

  1. 48
  2. 20
  3. 30
  4. 47
  5. 62
  6. 2
  7. 45
  8. 25
  9. 54
  10. 25
  11. 86
  12. 15
  13. 36
  14. 12
  15. 22
  16. 78
  17. 25
  18. 87
  19. 85
  20. 24
  21. 51
  22. 94
  23. 12
  24. 32
  25. 9
  26. 9
  27. 4
  28. 14
  29. 50
  30. 2
  31. 56
  32. 56
  33. 60
  34. 8
  35. 30
  36. 38
  37. 56
  38. 27
  39. 16
  40. 90

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