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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 524 · 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: 97, 52, 17, 83? (a) 97 (b) 52 (c) 17 (d) 83
  2. 2.Which number is the odd one out: 41, 37, 11, 15? (a) 41 (b) 37 (c) 11 (d) 15
  3. 3.Which number is the odd one out: 25, 11, 53, 71? (a) 25 (b) 11 (c) 53 (d) 71
  4. 4.Which number is the odd one out: 15, 9, 45, 4? (a) 15 (b) 9 (c) 45 (d) 4
  5. 5.Which number is the odd one out: 4, 47, 13, 29? (a) 4 (b) 47 (c) 13 (d) 29
  6. 6.Which number is the odd one out: 67, 37, 13, 51? (a) 67 (b) 37 (c) 13 (d) 51
  7. 7.Which number is the odd one out: 13, 17, 89, 18? (a) 13 (b) 17 (c) 89 (d) 18
  8. 8.Which number is the odd one out: 30, 76, 52, 20? (a) 30 (b) 76 (c) 52 (d) 20
  9. 9.Which number is the odd one out: 2, 46, 37, 61? (a) 2 (b) 46 (c) 37 (d) 61
  10. 10.Which number is the odd one out: 71, 38, 59, 11? (a) 71 (b) 38 (c) 59 (d) 11
  11. 11.Which number is the odd one out: 37, 81, 53, 13? (a) 37 (b) 81 (c) 53 (d) 13
  12. 12.Which number is the odd one out: 50, 65, 72, 75? (a) 50 (b) 65 (c) 72 (d) 75
  13. 13.Which number is the odd one out: 66, 29, 6, 78? (a) 66 (b) 29 (c) 6 (d) 78
  14. 14.Which number is the odd one out: 17, 67, 11, 86? (a) 17 (b) 67 (c) 11 (d) 86
  15. 15.Which number is the odd one out: 61, 80, 55, 31? (a) 61 (b) 80 (c) 55 (d) 31
  16. 16.Which number is the odd one out: 47, 5, 37, 25? (a) 47 (b) 5 (c) 37 (d) 25
  17. 17.Which number is the odd one out: 20, 35, 14, 77? (a) 20 (b) 35 (c) 14 (d) 77
  18. 18.Which number is the odd one out: 47, 78, 17, 73? (a) 47 (b) 78 (c) 17 (d) 73
  19. 19.Which number is the odd one out: 53, 58, 59, 11? (a) 53 (b) 58 (c) 59 (d) 11
  20. 20.Which number is the odd one out: 30, 11, 53, 31? (a) 30 (b) 11 (c) 53 (d) 31
  21. 21.Which number is the odd one out: 56, 84, 73, 24? (a) 56 (b) 84 (c) 73 (d) 24
  22. 22.Which number is the odd one out: 53, 32, 43, 83? (a) 53 (b) 32 (c) 43 (d) 83
  23. 23.Which number is the odd one out: 97, 86, 11, 71? (a) 97 (b) 86 (c) 11 (d) 71
  24. 24.Which number is the odd one out: 31, 49, 41, 11? (a) 31 (b) 49 (c) 41 (d) 11
  25. 25.Which number is the odd one out: 73, 97, 43, 28? (a) 73 (b) 97 (c) 43 (d) 28
  26. 26.Which number is the odd one out: 43, 38, 17, 71? (a) 43 (b) 38 (c) 17 (d) 71
  27. 27.Which number is the odd one out: 88, 13, 29, 43? (a) 88 (b) 13 (c) 29 (d) 43
  28. 28.Which number is the odd one out: 58, 27, 99, 93? (a) 58 (b) 27 (c) 99 (d) 93
  29. 29.Which number is the odd one out: 31, 28, 97, 2? (a) 31 (b) 28 (c) 97 (d) 2
  30. 30.Which number is the odd one out: 97, 28, 13, 19? (a) 97 (b) 28 (c) 13 (d) 19
  31. 31.Which number is the odd one out: 83, 66, 24, 96? (a) 83 (b) 66 (c) 24 (d) 96
  32. 32.Which number is the odd one out: 56, 16, 84, 64? (a) 56 (b) 16 (c) 84 (d) 64
  33. 33.Which number is the odd one out: 2, 90, 3, 17? (a) 2 (b) 90 (c) 3 (d) 17
  34. 34.Which number is the odd one out: 28, 91, 21, 36? (a) 28 (b) 91 (c) 21 (d) 36
  35. 35.Which number is the odd one out: 48, 8, 12, 34? (a) 48 (b) 8 (c) 12 (d) 34
  36. 36.Which number is the odd one out: 53, 56, 17, 41? (a) 53 (b) 56 (c) 17 (d) 41
  37. 37.Which number is the odd one out: 11, 70, 67, 29? (a) 11 (b) 70 (c) 67 (d) 29
  38. 38.Which number is the odd one out: 73, 23, 13, 94? (a) 73 (b) 23 (c) 13 (d) 94
  39. 39.Which number is the odd one out: 41, 13, 73, 62? (a) 41 (b) 13 (c) 73 (d) 62
  40. 40.Which number is the odd one out: 47, 61, 11, 51? (a) 47 (b) 61 (c) 11 (d) 51

Answer key

  1. 52
  2. 15
  3. 25
  4. 4
  5. 4
  6. 51
  7. 18
  8. 30
  9. 46
  10. 38
  11. 81
  12. 72
  13. 29
  14. 86
  15. 80
  16. 25
  17. 20
  18. 78
  19. 58
  20. 30
  21. 73
  22. 32
  23. 86
  24. 49
  25. 28
  26. 38
  27. 88
  28. 58
  29. 28
  30. 28
  31. 83
  32. 84
  33. 90
  34. 36
  35. 34
  36. 56
  37. 70
  38. 94
  39. 62
  40. 51

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