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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 13 · 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: 80, 23, 37, 31? (a) 80 (b) 23 (c) 37 (d) 31
  2. 2.Which number is the odd one out: 8, 16, 64, 84? (a) 8 (b) 16 (c) 64 (d) 84
  3. 3.Which number is the odd one out: 71, 6, 11, 73? (a) 71 (b) 6 (c) 11 (d) 73
  4. 4.Which number is the odd one out: 83, 15, 19, 47? (a) 83 (b) 15 (c) 19 (d) 47
  5. 5.Which number is the odd one out: 73, 2, 60, 17? (a) 73 (b) 2 (c) 60 (d) 17
  6. 6.Which number is the odd one out: 88, 19, 97, 59? (a) 88 (b) 19 (c) 97 (d) 59
  7. 7.Which number is the odd one out: 25, 16, 64, 45? (a) 25 (b) 16 (c) 64 (d) 45
  8. 8.Which number is the odd one out: 64, 79, 43, 97? (a) 64 (b) 79 (c) 43 (d) 97
  9. 9.Which number is the odd one out: 49, 16, 28, 77? (a) 49 (b) 16 (c) 28 (d) 77
  10. 10.Which number is the odd one out: 50, 13, 71, 23? (a) 50 (b) 13 (c) 71 (d) 23
  11. 11.Which number is the odd one out: 23, 3, 79, 30? (a) 23 (b) 3 (c) 79 (d) 30
  12. 12.Which number is the odd one out: 53, 56, 11, 41? (a) 53 (b) 56 (c) 11 (d) 41
  13. 13.Which number is the odd one out: 97, 31, 53, 74? (a) 97 (b) 31 (c) 53 (d) 74
  14. 14.Which number is the odd one out: 73, 64, 32, 16? (a) 73 (b) 64 (c) 32 (d) 16
  15. 15.Which number is the odd one out: 13, 17, 23, 45? (a) 13 (b) 17 (c) 23 (d) 45
  16. 16.Which number is the odd one out: 65, 80, 15, 48? (a) 65 (b) 80 (c) 15 (d) 48
  17. 17.Which number is the odd one out: 7, 37, 35, 5? (a) 7 (b) 37 (c) 35 (d) 5
  18. 18.Which number is the odd one out: 29, 71, 58, 17? (a) 29 (b) 71 (c) 58 (d) 17
  19. 19.Which number is the odd one out: 19, 53, 83, 84? (a) 19 (b) 53 (c) 83 (d) 84
  20. 20.Which number is the odd one out: 65, 15, 57, 74? (a) 65 (b) 15 (c) 57 (d) 74
  21. 21.Which number is the odd one out: 83, 96, 33, 19? (a) 83 (b) 96 (c) 33 (d) 19
  22. 22.Which number is the odd one out: 47, 71, 38, 17? (a) 47 (b) 71 (c) 38 (d) 17
  23. 23.Which number is the odd one out: 23, 83, 58, 29? (a) 23 (b) 83 (c) 58 (d) 29
  24. 24.Which number is the odd one out: 13, 69, 37, 83? (a) 13 (b) 69 (c) 37 (d) 83
  25. 25.Which number is the odd one out: 79, 87, 59, 47? (a) 79 (b) 87 (c) 59 (d) 47
  26. 26.Which number is the odd one out: 16, 4, 53, 88? (a) 16 (b) 4 (c) 53 (d) 88
  27. 27.Which number is the odd one out: 66, 48, 45, 24? (a) 66 (b) 48 (c) 45 (d) 24
  28. 28.Which number is the odd one out: 23, 24, 96, 8? (a) 23 (b) 24 (c) 96 (d) 8
  29. 29.Which number is the odd one out: 17, 73, 48, 53? (a) 17 (b) 73 (c) 48 (d) 53
  30. 30.Which number is the odd one out: 67, 5, 17, 25? (a) 67 (b) 5 (c) 17 (d) 25
  31. 31.Which number is the odd one out: 88, 24, 92, 96? (a) 88 (b) 24 (c) 92 (d) 96
  32. 32.Which number is the odd one out: 73, 59, 18, 23? (a) 73 (b) 59 (c) 18 (d) 23
  33. 33.Which number is the odd one out: 73, 89, 13, 69? (a) 73 (b) 89 (c) 13 (d) 69
  34. 34.Which number is the odd one out: 7, 63, 43, 61? (a) 7 (b) 63 (c) 43 (d) 61
  35. 35.Which number is the odd one out: 43, 13, 59, 50? (a) 43 (b) 13 (c) 59 (d) 50
  36. 36.Which number is the odd one out: 41, 11, 38, 17? (a) 41 (b) 11 (c) 38 (d) 17
  37. 37.Which number is the odd one out: 71, 10, 11, 47? (a) 71 (b) 10 (c) 11 (d) 47
  38. 38.Which number is the odd one out: 64, 61, 16, 4? (a) 64 (b) 61 (c) 16 (d) 4
  39. 39.Which number is the odd one out: 37, 25, 83, 19? (a) 37 (b) 25 (c) 83 (d) 19
  40. 40.Which number is the odd one out: 61, 31, 54, 53? (a) 61 (b) 31 (c) 54 (d) 53

Answer key

  1. 80
  2. 84
  3. 6
  4. 15
  5. 60
  6. 88
  7. 45
  8. 64
  9. 16
  10. 50
  11. 30
  12. 56
  13. 74
  14. 73
  15. 45
  16. 48
  17. 35
  18. 58
  19. 84
  20. 74
  21. 96
  22. 38
  23. 58
  24. 69
  25. 87
  26. 53
  27. 45
  28. 23
  29. 48
  30. 25
  31. 92
  32. 18
  33. 69
  34. 63
  35. 50
  36. 38
  37. 10
  38. 61
  39. 25
  40. 54

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