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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 879 · 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: 4, 36, 54, 78? (a) 4 (b) 36 (c) 54 (d) 78
  2. 2.Which number is the odd one out: 65, 14, 91, 70? (a) 65 (b) 14 (c) 91 (d) 70
  3. 3.Which number is the odd one out: 11, 18, 90, 30? (a) 11 (b) 18 (c) 90 (d) 30
  4. 4.Which number is the odd one out: 42, 52, 14, 84? (a) 42 (b) 52 (c) 14 (d) 84
  5. 5.Which number is the odd one out: 43, 70, 83, 13? (a) 43 (b) 70 (c) 83 (d) 13
  6. 6.Which number is the odd one out: 31, 19, 17, 22? (a) 31 (b) 19 (c) 17 (d) 22
  7. 7.Which number is the odd one out: 60, 12, 66, 10? (a) 60 (b) 12 (c) 66 (d) 10
  8. 8.Which number is the odd one out: 9, 26, 81, 99? (a) 9 (b) 26 (c) 81 (d) 99
  9. 9.Which number is the odd one out: 67, 19, 71, 76? (a) 67 (b) 19 (c) 71 (d) 76
  10. 10.Which number is the odd one out: 48, 78, 8, 44? (a) 48 (b) 78 (c) 8 (d) 44
  11. 11.Which number is the odd one out: 88, 14, 68, 8? (a) 88 (b) 14 (c) 68 (d) 8
  12. 12.Which number is the odd one out: 64, 92, 83, 16? (a) 64 (b) 92 (c) 83 (d) 16
  13. 13.Which number is the odd one out: 67, 17, 61, 34? (a) 67 (b) 17 (c) 61 (d) 34
  14. 14.Which number is the odd one out: 99, 43, 83, 53? (a) 99 (b) 43 (c) 83 (d) 53
  15. 15.Which number is the odd one out: 41, 28, 31, 79? (a) 41 (b) 28 (c) 31 (d) 79
  16. 16.Which number is the odd one out: 43, 59, 19, 66? (a) 43 (b) 59 (c) 19 (d) 66
  17. 17.Which number is the odd one out: 11, 3, 19, 33? (a) 11 (b) 3 (c) 19 (d) 33
  18. 18.Which number is the odd one out: 61, 5, 75, 3? (a) 61 (b) 5 (c) 75 (d) 3
  19. 19.Which number is the odd one out: 32, 41, 48, 24? (a) 32 (b) 41 (c) 48 (d) 24
  20. 20.Which number is the odd one out: 61, 51, 29, 43? (a) 61 (b) 51 (c) 29 (d) 43
  21. 21.Which number is the odd one out: 6, 80, 18, 72? (a) 6 (b) 80 (c) 18 (d) 72
  22. 22.Which number is the odd one out: 23, 52, 41, 29? (a) 23 (b) 52 (c) 41 (d) 29
  23. 23.Which number is the odd one out: 86, 26, 38, 7? (a) 86 (b) 26 (c) 38 (d) 7
  24. 24.Which number is the odd one out: 35, 65, 70, 92? (a) 35 (b) 65 (c) 70 (d) 92
  25. 25.Which number is the odd one out: 29, 31, 54, 27? (a) 29 (b) 31 (c) 54 (d) 27
  26. 26.Which number is the odd one out: 48, 6, 62, 96? (a) 48 (b) 6 (c) 62 (d) 96
  27. 27.Which number is the odd one out: 59, 71, 48, 31? (a) 59 (b) 71 (c) 48 (d) 31
  28. 28.Which number is the odd one out: 6, 17, 61, 71? (a) 6 (b) 17 (c) 61 (d) 71
  29. 29.Which number is the odd one out: 13, 37, 97, 34? (a) 13 (b) 37 (c) 97 (d) 34
  30. 30.Which number is the odd one out: 41, 71, 61, 96? (a) 41 (b) 71 (c) 61 (d) 96
  31. 31.Which number is the odd one out: 42, 77, 48, 91? (a) 42 (b) 77 (c) 48 (d) 91
  32. 32.Which number is the odd one out: 42, 89, 98, 78? (a) 42 (b) 89 (c) 98 (d) 78
  33. 33.Which number is the odd one out: 11, 47, 53, 78? (a) 11 (b) 47 (c) 53 (d) 78
  34. 34.Which number is the odd one out: 14, 91, 37, 41? (a) 14 (b) 91 (c) 37 (d) 41
  35. 35.Which number is the odd one out: 78, 13, 41, 33? (a) 78 (b) 13 (c) 41 (d) 33
  36. 36.Which number is the odd one out: 59, 77, 89, 17? (a) 59 (b) 77 (c) 89 (d) 17
  37. 37.Which number is the odd one out: 65, 71, 43, 29? (a) 65 (b) 71 (c) 43 (d) 29
  38. 38.Which number is the odd one out: 79, 11, 24, 67? (a) 79 (b) 11 (c) 24 (d) 67
  39. 39.Which number is the odd one out: 67, 84, 53, 2? (a) 67 (b) 84 (c) 53 (d) 2
  40. 40.Which number is the odd one out: 83, 47, 51, 97? (a) 83 (b) 47 (c) 51 (d) 97

Answer key

  1. 4
  2. 65
  3. 11
  4. 52
  5. 70
  6. 22
  7. 10
  8. 26
  9. 76
  10. 78
  11. 14
  12. 83
  13. 34
  14. 99
  15. 28
  16. 66
  17. 33
  18. 75
  19. 41
  20. 51
  21. 80
  22. 52
  23. 7
  24. 92
  25. 54
  26. 62
  27. 48
  28. 6
  29. 34
  30. 96
  31. 48
  32. 89
  33. 78
  34. 14
  35. 78
  36. 77
  37. 65
  38. 24
  39. 84
  40. 51

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