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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 822 · 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: 9, 84, 63, 81? (a) 9 (b) 84 (c) 63 (d) 81
  2. 2.Which number is the odd one out: 90, 89, 17, 59? (a) 90 (b) 89 (c) 17 (d) 59
  3. 3.Which number is the odd one out: 24, 73, 19, 29? (a) 24 (b) 73 (c) 19 (d) 29
  4. 4.Which number is the odd one out: 50, 16, 64, 4? (a) 50 (b) 16 (c) 64 (d) 4
  5. 5.Which number is the odd one out: 17, 25, 29, 23? (a) 17 (b) 25 (c) 29 (d) 23
  6. 6.Which number is the odd one out: 4, 76, 64, 16? (a) 4 (b) 76 (c) 64 (d) 16
  7. 7.Which number is the odd one out: 73, 76, 53, 79? (a) 73 (b) 76 (c) 53 (d) 79
  8. 8.Which number is the odd one out: 7, 83, 63, 47? (a) 7 (b) 83 (c) 63 (d) 47
  9. 9.Which number is the odd one out: 37, 90, 89, 2? (a) 37 (b) 90 (c) 89 (d) 2
  10. 10.Which number is the odd one out: 41, 89, 73, 68? (a) 41 (b) 89 (c) 73 (d) 68
  11. 11.Which number is the odd one out: 79, 16, 8, 64? (a) 79 (b) 16 (c) 8 (d) 64
  12. 12.Which number is the odd one out: 47, 79, 36, 23? (a) 47 (b) 79 (c) 36 (d) 23
  13. 13.Which number is the odd one out: 97, 3, 27, 19? (a) 97 (b) 3 (c) 27 (d) 19
  14. 14.Which number is the odd one out: 53, 83, 9, 29? (a) 53 (b) 83 (c) 9 (d) 29
  15. 15.Which number is the odd one out: 13, 61, 41, 35? (a) 13 (b) 61 (c) 41 (d) 35
  16. 16.Which number is the odd one out: 61, 47, 79, 46? (a) 61 (b) 47 (c) 79 (d) 46
  17. 17.Which number is the odd one out: 59, 17, 41, 74? (a) 59 (b) 17 (c) 41 (d) 74
  18. 18.Which number is the odd one out: 31, 19, 67, 38? (a) 31 (b) 19 (c) 67 (d) 38
  19. 19.Which number is the odd one out: 96, 32, 24, 5? (a) 96 (b) 32 (c) 24 (d) 5
  20. 20.Which number is the odd one out: 28, 78, 42, 6? (a) 28 (b) 78 (c) 42 (d) 6
  21. 21.Which number is the odd one out: 9, 30, 90, 6? (a) 9 (b) 30 (c) 90 (d) 6
  22. 22.Which number is the odd one out: 54, 27, 18, 83? (a) 54 (b) 27 (c) 18 (d) 83
  23. 23.Which number is the odd one out: 61, 53, 65, 5? (a) 61 (b) 53 (c) 65 (d) 5
  24. 24.Which number is the odd one out: 50, 61, 53, 83? (a) 50 (b) 61 (c) 53 (d) 83
  25. 25.Which number is the odd one out: 61, 3, 33, 34? (a) 61 (b) 3 (c) 33 (d) 34
  26. 26.Which number is the odd one out: 10, 61, 89, 79? (a) 10 (b) 61 (c) 89 (d) 79
  27. 27.Which number is the odd one out: 70, 59, 89, 53? (a) 70 (b) 59 (c) 89 (d) 53
  28. 28.Which number is the odd one out: 6, 83, 61, 39? (a) 6 (b) 83 (c) 61 (d) 39
  29. 29.Which number is the odd one out: 24, 48, 50, 52? (a) 24 (b) 48 (c) 50 (d) 52
  30. 30.Which number is the odd one out: 39, 52, 57, 87? (a) 39 (b) 52 (c) 57 (d) 87
  31. 31.Which number is the odd one out: 67, 22, 11, 53? (a) 67 (b) 22 (c) 11 (d) 53
  32. 32.Which number is the odd one out: 21, 13, 23, 84? (a) 21 (b) 13 (c) 23 (d) 84
  33. 33.Which number is the odd one out: 23, 73, 71, 74? (a) 23 (b) 73 (c) 71 (d) 74
  34. 34.Which number is the odd one out: 29, 66, 3, 23? (a) 29 (b) 66 (c) 3 (d) 23
  35. 35.Which number is the odd one out: 67, 17, 59, 91? (a) 67 (b) 17 (c) 59 (d) 91
  36. 36.Which number is the odd one out: 67, 52, 94, 76? (a) 67 (b) 52 (c) 94 (d) 76
  37. 37.Which number is the odd one out: 79, 61, 97, 8? (a) 79 (b) 61 (c) 97 (d) 8
  38. 38.Which number is the odd one out: 76, 13, 29, 97? (a) 76 (b) 13 (c) 29 (d) 97
  39. 39.Which number is the odd one out: 67, 53, 39, 13? (a) 67 (b) 53 (c) 39 (d) 13
  40. 40.Which number is the odd one out: 24, 95, 12, 48? (a) 24 (b) 95 (c) 12 (d) 48

Answer key

  1. 84
  2. 90
  3. 24
  4. 50
  5. 25
  6. 76
  7. 76
  8. 63
  9. 90
  10. 68
  11. 79
  12. 36
  13. 27
  14. 9
  15. 35
  16. 46
  17. 74
  18. 38
  19. 5
  20. 28
  21. 9
  22. 83
  23. 65
  24. 50
  25. 34
  26. 10
  27. 70
  28. 6
  29. 50
  30. 52
  31. 22
  32. 84
  33. 74
  34. 66
  35. 91
  36. 67
  37. 8
  38. 76
  39. 39
  40. 95

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