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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 281 · 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: 91, 70, 35, 44? (a) 91 (b) 70 (c) 35 (d) 44
  2. 2.Which number is the odd one out: 47, 11, 79, 77? (a) 47 (b) 11 (c) 79 (d) 77
  3. 3.Which number is the odd one out: 5, 83, 59, 50? (a) 5 (b) 83 (c) 59 (d) 50
  4. 4.Which number is the odd one out: 54, 23, 43, 61? (a) 54 (b) 23 (c) 43 (d) 61
  5. 5.Which number is the odd one out: 13, 64, 16, 4? (a) 13 (b) 64 (c) 16 (d) 4
  6. 6.Which number is the odd one out: 11, 73, 12, 71? (a) 11 (b) 73 (c) 12 (d) 71
  7. 7.Which number is the odd one out: 8, 49, 82, 56? (a) 8 (b) 49 (c) 82 (d) 56
  8. 8.Which number is the odd one out: 97, 91, 43, 47? (a) 97 (b) 91 (c) 43 (d) 47
  9. 9.Which number is the odd one out: 50, 15, 75, 94? (a) 50 (b) 15 (c) 75 (d) 94
  10. 10.Which number is the odd one out: 67, 41, 44, 17? (a) 67 (b) 41 (c) 44 (d) 17
  11. 11.Which number is the odd one out: 2, 4, 79, 73? (a) 2 (b) 4 (c) 79 (d) 73
  12. 12.Which number is the odd one out: 17, 47, 79, 54? (a) 17 (b) 47 (c) 79 (d) 54
  13. 13.Which number is the odd one out: 78, 54, 29, 99? (a) 78 (b) 54 (c) 29 (d) 99
  14. 14.Which number is the odd one out: 78, 13, 89, 97? (a) 78 (b) 13 (c) 89 (d) 97
  15. 15.Which number is the odd one out: 17, 3, 97, 12? (a) 17 (b) 3 (c) 97 (d) 12
  16. 16.Which number is the odd one out: 79, 83, 61, 68? (a) 79 (b) 83 (c) 61 (d) 68
  17. 17.Which number is the odd one out: 15, 19, 97, 29? (a) 15 (b) 19 (c) 97 (d) 29
  18. 18.Which number is the odd one out: 84, 7, 2, 79? (a) 84 (b) 7 (c) 2 (d) 79
  19. 19.Which number is the odd one out: 59, 6, 37, 11? (a) 59 (b) 6 (c) 37 (d) 11
  20. 20.Which number is the odd one out: 39, 66, 55, 30? (a) 39 (b) 66 (c) 55 (d) 30
  21. 21.Which number is the odd one out: 2, 17, 34, 79? (a) 2 (b) 17 (c) 34 (d) 79
  22. 22.Which number is the odd one out: 19, 13, 61, 52? (a) 19 (b) 13 (c) 61 (d) 52
  23. 23.Which number is the odd one out: 11, 17, 83, 77? (a) 11 (b) 17 (c) 83 (d) 77
  24. 24.Which number is the odd one out: 73, 89, 47, 56? (a) 73 (b) 89 (c) 47 (d) 56
  25. 25.Which number is the odd one out: 47, 20, 73, 5? (a) 47 (b) 20 (c) 73 (d) 5
  26. 26.Which number is the odd one out: 97, 37, 3, 30? (a) 97 (b) 37 (c) 3 (d) 30
  27. 27.Which number is the odd one out: 81, 80, 16, 9? (a) 81 (b) 80 (c) 16 (d) 9
  28. 28.Which number is the odd one out: 61, 83, 3, 75? (a) 61 (b) 83 (c) 3 (d) 75
  29. 29.Which number is the odd one out: 71, 73, 83, 24? (a) 71 (b) 73 (c) 83 (d) 24
  30. 30.Which number is the odd one out: 8, 48, 24, 26? (a) 8 (b) 48 (c) 24 (d) 26
  31. 31.Which number is the odd one out: 23, 3, 69, 17? (a) 23 (b) 3 (c) 69 (d) 17
  32. 32.Which number is the odd one out: 5, 60, 2, 47? (a) 5 (b) 60 (c) 2 (d) 47
  33. 33.Which number is the odd one out: 45, 29, 5, 13? (a) 45 (b) 29 (c) 5 (d) 13
  34. 34.Which number is the odd one out: 11, 2, 73, 72? (a) 11 (b) 2 (c) 73 (d) 72
  35. 35.Which number is the odd one out: 25, 67, 47, 5? (a) 25 (b) 67 (c) 47 (d) 5
  36. 36.Which number is the odd one out: 38, 2, 31, 94? (a) 38 (b) 2 (c) 31 (d) 94
  37. 37.Which number is the odd one out: 43, 13, 51, 83? (a) 43 (b) 13 (c) 51 (d) 83
  38. 38.Which number is the odd one out: 60, 61, 43, 67? (a) 60 (b) 61 (c) 43 (d) 67
  39. 39.Which number is the odd one out: 54, 97, 41, 3? (a) 54 (b) 97 (c) 41 (d) 3
  40. 40.Which number is the odd one out: 11, 47, 79, 8? (a) 11 (b) 47 (c) 79 (d) 8

Answer key

  1. 44
  2. 77
  3. 50
  4. 54
  5. 13
  6. 12
  7. 49
  8. 91
  9. 94
  10. 44
  11. 4
  12. 54
  13. 29
  14. 78
  15. 12
  16. 68
  17. 15
  18. 84
  19. 6
  20. 55
  21. 34
  22. 52
  23. 77
  24. 56
  25. 20
  26. 30
  27. 80
  28. 75
  29. 24
  30. 26
  31. 69
  32. 60
  33. 45
  34. 72
  35. 25
  36. 31
  37. 51
  38. 60
  39. 54
  40. 8

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