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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 790 · 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: 24, 89, 3, 83? (a) 24 (b) 89 (c) 3 (d) 83
  2. 2.Which number is the odd one out: 66, 47, 37, 17? (a) 66 (b) 47 (c) 37 (d) 17
  3. 3.Which number is the odd one out: 53, 23, 94, 17? (a) 53 (b) 23 (c) 94 (d) 17
  4. 4.Which number is the odd one out: 31, 19, 47, 50? (a) 31 (b) 19 (c) 47 (d) 50
  5. 5.Which number is the odd one out: 7, 14, 47, 67? (a) 7 (b) 14 (c) 47 (d) 67
  6. 6.Which number is the odd one out: 59, 8, 64, 16? (a) 59 (b) 8 (c) 64 (d) 16
  7. 7.Which number is the odd one out: 85, 29, 47, 11? (a) 85 (b) 29 (c) 47 (d) 11
  8. 8.Which number is the odd one out: 67, 18, 71, 23? (a) 67 (b) 18 (c) 71 (d) 23
  9. 9.Which number is the odd one out: 83, 41, 59, 4? (a) 83 (b) 41 (c) 59 (d) 4
  10. 10.Which number is the odd one out: 11, 54, 19, 59? (a) 11 (b) 54 (c) 19 (d) 59
  11. 11.Which number is the odd one out: 18, 24, 72, 3? (a) 18 (b) 24 (c) 72 (d) 3
  12. 12.Which number is the odd one out: 11, 98, 83, 97? (a) 11 (b) 98 (c) 83 (d) 97
  13. 13.Which number is the odd one out: 40, 55, 72, 15? (a) 40 (b) 55 (c) 72 (d) 15
  14. 14.Which number is the odd one out: 83, 23, 21, 31? (a) 83 (b) 23 (c) 21 (d) 31
  15. 15.Which number is the odd one out: 90, 59, 17, 37? (a) 90 (b) 59 (c) 17 (d) 37
  16. 16.Which number is the odd one out: 38, 79, 43, 11? (a) 38 (b) 79 (c) 43 (d) 11
  17. 17.Which number is the odd one out: 26, 13, 59, 83? (a) 26 (b) 13 (c) 59 (d) 83
  18. 18.Which number is the odd one out: 96, 17, 73, 43? (a) 96 (b) 17 (c) 73 (d) 43
  19. 19.Which number is the odd one out: 15, 41, 59, 43? (a) 15 (b) 41 (c) 59 (d) 43
  20. 20.Which number is the odd one out: 29, 73, 65, 43? (a) 29 (b) 73 (c) 65 (d) 43
  21. 21.Which number is the odd one out: 57, 75, 60, 87? (a) 57 (b) 75 (c) 60 (d) 87
  22. 22.Which number is the odd one out: 18, 6, 5, 54? (a) 18 (b) 6 (c) 5 (d) 54
  23. 23.Which number is the odd one out: 74, 53, 31, 71? (a) 74 (b) 53 (c) 31 (d) 71
  24. 24.Which number is the odd one out: 19, 67, 43, 35? (a) 19 (b) 67 (c) 43 (d) 35
  25. 25.Which number is the odd one out: 16, 61, 83, 37? (a) 16 (b) 61 (c) 83 (d) 37
  26. 26.Which number is the odd one out: 37, 61, 87, 89? (a) 37 (b) 61 (c) 87 (d) 89
  27. 27.Which number is the odd one out: 4, 64, 16, 79? (a) 4 (b) 64 (c) 16 (d) 79
  28. 28.Which number is the odd one out: 43, 29, 89, 20? (a) 43 (b) 29 (c) 89 (d) 20
  29. 29.Which number is the odd one out: 45, 99, 54, 60? (a) 45 (b) 99 (c) 54 (d) 60
  30. 30.Which number is the odd one out: 31, 53, 60, 5? (a) 31 (b) 53 (c) 60 (d) 5
  31. 31.Which number is the odd one out: 42, 73, 37, 91? (a) 42 (b) 73 (c) 37 (d) 91
  32. 32.Which number is the odd one out: 33, 18, 89, 31? (a) 33 (b) 18 (c) 89 (d) 31
  33. 33.Which number is the odd one out: 71, 92, 2, 67? (a) 71 (b) 92 (c) 2 (d) 67
  34. 34.Which number is the odd one out: 61, 47, 51, 73? (a) 61 (b) 47 (c) 51 (d) 73
  35. 35.Which number is the odd one out: 88, 71, 19, 79? (a) 88 (b) 71 (c) 19 (d) 79
  36. 36.Which number is the odd one out: 11, 30, 29, 69? (a) 11 (b) 30 (c) 29 (d) 69
  37. 37.Which number is the odd one out: 21, 14, 18, 91? (a) 21 (b) 14 (c) 18 (d) 91
  38. 38.Which number is the odd one out: 98, 16, 64, 4? (a) 98 (b) 16 (c) 64 (d) 4
  39. 39.Which number is the odd one out: 9, 81, 85, 25? (a) 9 (b) 81 (c) 85 (d) 25
  40. 40.Which number is the odd one out: 86, 4, 64, 16? (a) 86 (b) 4 (c) 64 (d) 16

Answer key

  1. 24
  2. 66
  3. 94
  4. 50
  5. 14
  6. 59
  7. 85
  8. 18
  9. 4
  10. 54
  11. 3
  12. 98
  13. 72
  14. 21
  15. 90
  16. 38
  17. 26
  18. 96
  19. 15
  20. 65
  21. 60
  22. 5
  23. 74
  24. 35
  25. 16
  26. 87
  27. 79
  28. 20
  29. 60
  30. 60
  31. 42
  32. 18
  33. 92
  34. 51
  35. 88
  36. 30
  37. 18
  38. 98
  39. 85
  40. 86

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