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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 933 · 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: 66, 8, 24, 78? (a) 66 (b) 8 (c) 24 (d) 78
  2. 2.Which number is the odd one out: 65, 90, 54, 6? (a) 65 (b) 90 (c) 54 (d) 6
  3. 3.Which number is the odd one out: 17, 96, 24, 12? (a) 17 (b) 96 (c) 24 (d) 12
  4. 4.Which number is the odd one out: 80, 40, 32, 89? (a) 80 (b) 40 (c) 32 (d) 89
  5. 5.Which number is the odd one out: 88, 48, 24, 5? (a) 88 (b) 48 (c) 24 (d) 5
  6. 6.Which number is the odd one out: 17, 4, 31, 19? (a) 17 (b) 4 (c) 31 (d) 19
  7. 7.Which number is the odd one out: 29, 15, 23, 61? (a) 29 (b) 15 (c) 23 (d) 61
  8. 8.Which number is the odd one out: 48, 24, 27, 78? (a) 48 (b) 24 (c) 27 (d) 78
  9. 9.Which number is the odd one out: 29, 59, 2, 98? (a) 29 (b) 59 (c) 2 (d) 98
  10. 10.Which number is the odd one out: 21, 23, 43, 11? (a) 21 (b) 23 (c) 43 (d) 11
  11. 11.Which number is the odd one out: 89, 31, 97, 94? (a) 89 (b) 31 (c) 97 (d) 94
  12. 12.Which number is the odd one out: 32, 52, 8, 11? (a) 32 (b) 52 (c) 8 (d) 11
  13. 13.Which number is the odd one out: 83, 29, 6, 47? (a) 83 (b) 29 (c) 6 (d) 47
  14. 14.Which number is the odd one out: 2, 47, 6, 67? (a) 2 (b) 47 (c) 6 (d) 67
  15. 15.Which number is the odd one out: 68, 44, 74, 85? (a) 68 (b) 44 (c) 74 (d) 85
  16. 16.Which number is the odd one out: 32, 50, 88, 8? (a) 32 (b) 50 (c) 88 (d) 8
  17. 17.Which number is the odd one out: 47, 34, 13, 97? (a) 47 (b) 34 (c) 13 (d) 97
  18. 18.Which number is the odd one out: 67, 73, 97, 50? (a) 67 (b) 73 (c) 97 (d) 50
  19. 19.Which number is the odd one out: 77, 58, 13, 7? (a) 77 (b) 58 (c) 13 (d) 7
  20. 20.Which number is the odd one out: 23, 18, 79, 11? (a) 23 (b) 18 (c) 79 (d) 11
  21. 21.Which number is the odd one out: 53, 92, 43, 2? (a) 53 (b) 92 (c) 43 (d) 2
  22. 22.Which number is the odd one out: 47, 89, 9, 97? (a) 47 (b) 89 (c) 9 (d) 97
  23. 23.Which number is the odd one out: 75, 47, 71, 17? (a) 75 (b) 47 (c) 71 (d) 17
  24. 24.Which number is the odd one out: 97, 73, 26, 79? (a) 97 (b) 73 (c) 26 (d) 79
  25. 25.Which number is the odd one out: 89, 2, 43, 18? (a) 89 (b) 2 (c) 43 (d) 18
  26. 26.Which number is the odd one out: 17, 89, 38, 37? (a) 17 (b) 89 (c) 38 (d) 37
  27. 27.Which number is the odd one out: 69, 37, 67, 83? (a) 69 (b) 37 (c) 67 (d) 83
  28. 28.Which number is the odd one out: 61, 44, 2, 47? (a) 61 (b) 44 (c) 2 (d) 47
  29. 29.Which number is the odd one out: 7, 2, 93, 21? (a) 7 (b) 2 (c) 93 (d) 21
  30. 30.Which number is the odd one out: 67, 95, 97, 5? (a) 67 (b) 95 (c) 97 (d) 5
  31. 31.Which number is the odd one out: 9, 64, 16, 45? (a) 9 (b) 64 (c) 16 (d) 45
  32. 32.Which number is the odd one out: 79, 73, 46, 17? (a) 79 (b) 73 (c) 46 (d) 17
  33. 33.Which number is the odd one out: 64, 42, 84, 98? (a) 64 (b) 42 (c) 84 (d) 98
  34. 34.Which number is the odd one out: 85, 20, 95, 56? (a) 85 (b) 20 (c) 95 (d) 56
  35. 35.Which number is the odd one out: 31, 19, 54, 23? (a) 31 (b) 19 (c) 54 (d) 23
  36. 36.Which number is the odd one out: 43, 8, 44, 88? (a) 43 (b) 8 (c) 44 (d) 88
  37. 37.Which number is the odd one out: 69, 7, 15, 75? (a) 69 (b) 7 (c) 15 (d) 75
  38. 38.Which number is the odd one out: 35, 19, 43, 23? (a) 35 (b) 19 (c) 43 (d) 23
  39. 39.Which number is the odd one out: 21, 98, 87, 39? (a) 21 (b) 98 (c) 87 (d) 39
  40. 40.Which number is the odd one out: 97, 61, 65, 47? (a) 97 (b) 61 (c) 65 (d) 47

Answer key

  1. 8
  2. 65
  3. 17
  4. 89
  5. 5
  6. 4
  7. 15
  8. 27
  9. 98
  10. 21
  11. 94
  12. 11
  13. 6
  14. 6
  15. 85
  16. 50
  17. 34
  18. 50
  19. 58
  20. 18
  21. 92
  22. 9
  23. 75
  24. 26
  25. 18
  26. 38
  27. 69
  28. 44
  29. 2
  30. 95
  31. 45
  32. 46
  33. 64
  34. 56
  35. 54
  36. 43
  37. 7
  38. 35
  39. 98
  40. 65

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