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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 679 · 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: 41, 74, 67, 17? (a) 41 (b) 74 (c) 67 (d) 17
  2. 2.Which number is the odd one out: 68, 24, 95, 96? (a) 68 (b) 24 (c) 95 (d) 96
  3. 3.Which number is the odd one out: 12, 59, 79, 53? (a) 12 (b) 59 (c) 79 (d) 53
  4. 4.Which number is the odd one out: 2, 53, 11, 10? (a) 2 (b) 53 (c) 11 (d) 10
  5. 5.Which number is the odd one out: 17, 19, 80, 73? (a) 17 (b) 19 (c) 80 (d) 73
  6. 6.Which number is the odd one out: 82, 13, 67, 31? (a) 82 (b) 13 (c) 67 (d) 31
  7. 7.Which number is the odd one out: 61, 20, 55, 17? (a) 61 (b) 20 (c) 55 (d) 17
  8. 8.Which number is the odd one out: 81, 32, 16, 9? (a) 81 (b) 32 (c) 16 (d) 9
  9. 9.Which number is the odd one out: 24, 12, 71, 32? (a) 24 (b) 12 (c) 71 (d) 32
  10. 10.Which number is the odd one out: 5, 14, 98, 35? (a) 5 (b) 14 (c) 98 (d) 35
  11. 11.Which number is the odd one out: 33, 43, 13, 89? (a) 33 (b) 43 (c) 13 (d) 89
  12. 12.Which number is the odd one out: 24, 8, 68, 96? (a) 24 (b) 8 (c) 68 (d) 96
  13. 13.Which number is the odd one out: 83, 41, 17, 93? (a) 83 (b) 41 (c) 17 (d) 93
  14. 14.Which number is the odd one out: 22, 41, 43, 23? (a) 22 (b) 41 (c) 43 (d) 23
  15. 15.Which number is the odd one out: 29, 34, 3, 57? (a) 29 (b) 34 (c) 3 (d) 57
  16. 16.Which number is the odd one out: 94, 93, 27, 99? (a) 94 (b) 93 (c) 27 (d) 99
  17. 17.Which number is the odd one out: 23, 11, 6, 97? (a) 23 (b) 11 (c) 6 (d) 97
  18. 18.Which number is the odd one out: 88, 60, 80, 24? (a) 88 (b) 60 (c) 80 (d) 24
  19. 19.Which number is the odd one out: 53, 71, 37, 56? (a) 53 (b) 71 (c) 37 (d) 56
  20. 20.Which number is the odd one out: 53, 17, 47, 45? (a) 53 (b) 17 (c) 47 (d) 45
  21. 21.Which number is the odd one out: 97, 11, 51, 89? (a) 97 (b) 11 (c) 51 (d) 89
  22. 22.Which number is the odd one out: 59, 67, 47, 9? (a) 59 (b) 67 (c) 47 (d) 9
  23. 23.Which number is the odd one out: 53, 31, 86, 79? (a) 53 (b) 31 (c) 86 (d) 79
  24. 24.Which number is the odd one out: 73, 41, 2, 6? (a) 73 (b) 41 (c) 2 (d) 6
  25. 25.Which number is the odd one out: 13, 11, 47, 4? (a) 13 (b) 11 (c) 47 (d) 4
  26. 26.Which number is the odd one out: 70, 17, 65, 71? (a) 70 (b) 17 (c) 65 (d) 71
  27. 27.Which number is the odd one out: 20, 4, 65, 95? (a) 20 (b) 4 (c) 65 (d) 95
  28. 28.Which number is the odd one out: 89, 27, 13, 47? (a) 89 (b) 27 (c) 13 (d) 47
  29. 29.Which number is the odd one out: 89, 3, 61, 87? (a) 89 (b) 3 (c) 61 (d) 87
  30. 30.Which number is the odd one out: 45, 99, 27, 70? (a) 45 (b) 99 (c) 27 (d) 70
  31. 31.Which number is the odd one out: 21, 90, 45, 30? (a) 21 (b) 90 (c) 45 (d) 30
  32. 32.Which number is the odd one out: 30, 88, 8, 80? (a) 30 (b) 88 (c) 8 (d) 80
  33. 33.Which number is the odd one out: 16, 47, 64, 4? (a) 16 (b) 47 (c) 64 (d) 4
  34. 34.Which number is the odd one out: 33, 19, 83, 59? (a) 33 (b) 19 (c) 83 (d) 59
  35. 35.Which number is the odd one out: 43, 67, 99, 23? (a) 43 (b) 67 (c) 99 (d) 23
  36. 36.Which number is the odd one out: 81, 6, 30, 90? (a) 81 (b) 6 (c) 30 (d) 90
  37. 37.Which number is the odd one out: 3, 11, 71, 69? (a) 3 (b) 11 (c) 71 (d) 69
  38. 38.Which number is the odd one out: 41, 32, 31, 29? (a) 41 (b) 32 (c) 31 (d) 29
  39. 39.Which number is the odd one out: 78, 16, 42, 84? (a) 78 (b) 16 (c) 42 (d) 84
  40. 40.Which number is the odd one out: 72, 54, 74, 48? (a) 72 (b) 54 (c) 74 (d) 48

Answer key

  1. 74
  2. 95
  3. 12
  4. 10
  5. 80
  6. 82
  7. 20
  8. 32
  9. 71
  10. 5
  11. 33
  12. 68
  13. 93
  14. 22
  15. 34
  16. 94
  17. 6
  18. 60
  19. 56
  20. 45
  21. 51
  22. 9
  23. 86
  24. 6
  25. 4
  26. 70
  27. 4
  28. 27
  29. 87
  30. 70
  31. 21
  32. 30
  33. 47
  34. 33
  35. 99
  36. 81
  37. 69
  38. 32
  39. 16
  40. 74

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