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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 84 · 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: 81, 68, 9, 4? (a) 81 (b) 68 (c) 9 (d) 4
  2. 2.Which number is the odd one out: 98, 29, 19, 2? (a) 98 (b) 29 (c) 19 (d) 2
  3. 3.Which number is the odd one out: 64, 93, 88, 16? (a) 64 (b) 93 (c) 88 (d) 16
  4. 4.Which number is the odd one out: 46, 35, 6, 78? (a) 46 (b) 35 (c) 6 (d) 78
  5. 5.Which number is the odd one out: 37, 19, 61, 18? (a) 37 (b) 19 (c) 61 (d) 18
  6. 6.Which number is the odd one out: 43, 59, 63, 89? (a) 43 (b) 59 (c) 63 (d) 89
  7. 7.Which number is the odd one out: 52, 74, 27, 68? (a) 52 (b) 74 (c) 27 (d) 68
  8. 8.Which number is the odd one out: 23, 3, 96, 11? (a) 23 (b) 3 (c) 96 (d) 11
  9. 9.Which number is the odd one out: 8, 79, 43, 19? (a) 8 (b) 79 (c) 43 (d) 19
  10. 10.Which number is the odd one out: 84, 96, 23, 56? (a) 84 (b) 96 (c) 23 (d) 56
  11. 11.Which number is the odd one out: 5, 43, 37, 20? (a) 5 (b) 43 (c) 37 (d) 20
  12. 12.Which number is the odd one out: 59, 55, 83, 29? (a) 59 (b) 55 (c) 83 (d) 29
  13. 13.Which number is the odd one out: 56, 67, 41, 19? (a) 56 (b) 67 (c) 41 (d) 19
  14. 14.Which number is the odd one out: 92, 6, 60, 5? (a) 92 (b) 6 (c) 60 (d) 5
  15. 15.Which number is the odd one out: 83, 97, 95, 53? (a) 83 (b) 97 (c) 95 (d) 53
  16. 16.Which number is the odd one out: 26, 71, 17, 47? (a) 26 (b) 71 (c) 17 (d) 47
  17. 17.Which number is the odd one out: 24, 96, 16, 25? (a) 24 (b) 96 (c) 16 (d) 25
  18. 18.Which number is the odd one out: 78, 67, 11, 31? (a) 78 (b) 67 (c) 11 (d) 31
  19. 19.Which number is the odd one out: 24, 57, 48, 96? (a) 24 (b) 57 (c) 48 (d) 96
  20. 20.Which number is the odd one out: 20, 25, 52, 74? (a) 20 (b) 25 (c) 52 (d) 74
  21. 21.Which number is the odd one out: 14, 73, 97, 13? (a) 14 (b) 73 (c) 97 (d) 13
  22. 22.Which number is the odd one out: 65, 15, 50, 6? (a) 65 (b) 15 (c) 50 (d) 6
  23. 23.Which number is the odd one out: 72, 31, 73, 61? (a) 72 (b) 31 (c) 73 (d) 61
  24. 24.Which number is the odd one out: 24, 96, 21, 48? (a) 24 (b) 96 (c) 21 (d) 48
  25. 25.Which number is the odd one out: 41, 48, 96, 88? (a) 41 (b) 48 (c) 96 (d) 88
  26. 26.Which number is the odd one out: 19, 42, 7, 73? (a) 19 (b) 42 (c) 7 (d) 73
  27. 27.Which number is the odd one out: 37, 18, 89, 2? (a) 37 (b) 18 (c) 89 (d) 2
  28. 28.Which number is the odd one out: 11, 83, 43, 48? (a) 11 (b) 83 (c) 43 (d) 48
  29. 29.Which number is the odd one out: 85, 48, 40, 96? (a) 85 (b) 48 (c) 40 (d) 96
  30. 30.Which number is the odd one out: 37, 41, 99, 79? (a) 37 (b) 41 (c) 99 (d) 79
  31. 31.Which number is the odd one out: 41, 13, 98, 23? (a) 41 (b) 13 (c) 98 (d) 23
  32. 32.Which number is the odd one out: 55, 43, 5, 47? (a) 55 (b) 43 (c) 5 (d) 47
  33. 33.Which number is the odd one out: 56, 89, 7, 41? (a) 56 (b) 89 (c) 7 (d) 41
  34. 34.Which number is the odd one out: 23, 5, 89, 15? (a) 23 (b) 5 (c) 89 (d) 15
  35. 35.Which number is the odd one out: 29, 3, 21, 23? (a) 29 (b) 3 (c) 21 (d) 23
  36. 36.Which number is the odd one out: 97, 71, 41, 21? (a) 97 (b) 71 (c) 41 (d) 21
  37. 37.Which number is the odd one out: 85, 13, 37, 19? (a) 85 (b) 13 (c) 37 (d) 19
  38. 38.Which number is the odd one out: 59, 96, 67, 37? (a) 59 (b) 96 (c) 67 (d) 37
  39. 39.Which number is the odd one out: 66, 79, 41, 31? (a) 66 (b) 79 (c) 41 (d) 31
  40. 40.Which number is the odd one out: 57, 41, 53, 54? (a) 57 (b) 41 (c) 53 (d) 54

Answer key

  1. 68
  2. 98
  3. 93
  4. 35
  5. 18
  6. 63
  7. 27
  8. 96
  9. 8
  10. 23
  11. 20
  12. 55
  13. 56
  14. 5
  15. 95
  16. 26
  17. 25
  18. 78
  19. 57
  20. 25
  21. 14
  22. 6
  23. 72
  24. 21
  25. 41
  26. 42
  27. 18
  28. 48
  29. 85
  30. 99
  31. 98
  32. 55
  33. 56
  34. 15
  35. 21
  36. 21
  37. 85
  38. 96
  39. 66
  40. 54

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