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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 18 · 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: 59, 18, 11, 3? (a) 59 (b) 18 (c) 11 (d) 3
  2. 2.Which number is the odd one out: 53, 83, 73, 45? (a) 53 (b) 83 (c) 73 (d) 45
  3. 3.Which number is the odd one out: 12, 31, 3, 23? (a) 12 (b) 31 (c) 3 (d) 23
  4. 4.Which number is the odd one out: 17, 34, 23, 19? (a) 17 (b) 34 (c) 23 (d) 19
  5. 5.Which number is the odd one out: 13, 9, 23, 79? (a) 13 (b) 9 (c) 23 (d) 79
  6. 6.Which number is the odd one out: 79, 59, 41, 88? (a) 79 (b) 59 (c) 41 (d) 88
  7. 7.Which number is the odd one out: 67, 24, 2, 11? (a) 67 (b) 24 (c) 2 (d) 11
  8. 8.Which number is the odd one out: 16, 99, 81, 64? (a) 16 (b) 99 (c) 81 (d) 64
  9. 9.Which number is the odd one out: 37, 61, 31, 8? (a) 37 (b) 61 (c) 31 (d) 8
  10. 10.Which number is the odd one out: 13, 11, 17, 88? (a) 13 (b) 11 (c) 17 (d) 88
  11. 11.Which number is the odd one out: 78, 41, 67, 2? (a) 78 (b) 41 (c) 67 (d) 2
  12. 12.Which number is the odd one out: 67, 73, 97, 86? (a) 67 (b) 73 (c) 97 (d) 86
  13. 13.Which number is the odd one out: 11, 71, 3, 96? (a) 11 (b) 71 (c) 3 (d) 96
  14. 14.Which number is the odd one out: 25, 67, 13, 37? (a) 25 (b) 67 (c) 13 (d) 37
  15. 15.Which number is the odd one out: 53, 67, 2, 94? (a) 53 (b) 67 (c) 2 (d) 94
  16. 16.Which number is the odd one out: 37, 92, 46, 44? (a) 37 (b) 92 (c) 46 (d) 44
  17. 17.Which number is the odd one out: 7, 47, 13, 49? (a) 7 (b) 47 (c) 13 (d) 49
  18. 18.Which number is the odd one out: 59, 58, 71, 47? (a) 59 (b) 58 (c) 71 (d) 47
  19. 19.Which number is the odd one out: 67, 59, 89, 46? (a) 67 (b) 59 (c) 89 (d) 46
  20. 20.Which number is the odd one out: 19, 61, 7, 84? (a) 19 (b) 61 (c) 7 (d) 84
  21. 21.Which number is the odd one out: 43, 23, 75, 5? (a) 43 (b) 23 (c) 75 (d) 5
  22. 22.Which number is the odd one out: 67, 31, 55, 89? (a) 67 (b) 31 (c) 55 (d) 89
  23. 23.Which number is the odd one out: 84, 11, 73, 13? (a) 84 (b) 11 (c) 73 (d) 13
  24. 24.Which number is the odd one out: 14, 83, 73, 13? (a) 14 (b) 83 (c) 73 (d) 13
  25. 25.Which number is the odd one out: 5, 96, 52, 24? (a) 5 (b) 96 (c) 52 (d) 24
  26. 26.Which number is the odd one out: 13, 83, 57, 47? (a) 13 (b) 83 (c) 57 (d) 47
  27. 27.Which number is the odd one out: 20, 67, 41, 19? (a) 20 (b) 67 (c) 41 (d) 19
  28. 28.Which number is the odd one out: 39, 23, 19, 11? (a) 39 (b) 23 (c) 19 (d) 11
  29. 29.Which number is the odd one out: 61, 87, 11, 89? (a) 61 (b) 87 (c) 11 (d) 89
  30. 30.Which number is the odd one out: 50, 29, 83, 41? (a) 50 (b) 29 (c) 83 (d) 41
  31. 31.Which number is the odd one out: 70, 80, 92, 32? (a) 70 (b) 80 (c) 92 (d) 32
  32. 32.Which number is the odd one out: 19, 79, 72, 23? (a) 19 (b) 79 (c) 72 (d) 23
  33. 33.Which number is the odd one out: 29, 70, 5, 13? (a) 29 (b) 70 (c) 5 (d) 13
  34. 34.Which number is the odd one out: 20, 15, 55, 84? (a) 20 (b) 15 (c) 55 (d) 84
  35. 35.Which number is the odd one out: 24, 28, 12, 48? (a) 24 (b) 28 (c) 12 (d) 48
  36. 36.Which number is the odd one out: 56, 54, 18, 6? (a) 56 (b) 54 (c) 18 (d) 6
  37. 37.Which number is the odd one out: 83, 23, 11, 36? (a) 83 (b) 23 (c) 11 (d) 36
  38. 38.Which number is the odd one out: 83, 72, 18, 24? (a) 83 (b) 72 (c) 18 (d) 24
  39. 39.Which number is the odd one out: 8, 73, 53, 2? (a) 8 (b) 73 (c) 53 (d) 2
  40. 40.Which number is the odd one out: 17, 71, 59, 62? (a) 17 (b) 71 (c) 59 (d) 62

Answer key

  1. 18
  2. 45
  3. 12
  4. 34
  5. 9
  6. 88
  7. 24
  8. 99
  9. 8
  10. 88
  11. 78
  12. 86
  13. 96
  14. 25
  15. 94
  16. 37
  17. 49
  18. 58
  19. 46
  20. 84
  21. 75
  22. 55
  23. 84
  24. 14
  25. 5
  26. 57
  27. 20
  28. 39
  29. 87
  30. 50
  31. 70
  32. 72
  33. 70
  34. 84
  35. 28
  36. 56
  37. 36
  38. 83
  39. 8
  40. 62

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