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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 739 · 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: 67, 71, 60, 53? (a) 67 (b) 71 (c) 60 (d) 53
  2. 2.Which number is the odd one out: 61, 71, 54, 3? (a) 61 (b) 71 (c) 54 (d) 3
  3. 3.Which number is the odd one out: 42, 31, 61, 7? (a) 42 (b) 31 (c) 61 (d) 7
  4. 4.Which number is the odd one out: 16, 53, 79, 47? (a) 16 (b) 53 (c) 79 (d) 47
  5. 5.Which number is the odd one out: 54, 23, 83, 3? (a) 54 (b) 23 (c) 83 (d) 3
  6. 6.Which number is the odd one out: 21, 60, 14, 35? (a) 21 (b) 60 (c) 14 (d) 35
  7. 7.Which number is the odd one out: 17, 83, 73, 9? (a) 17 (b) 83 (c) 73 (d) 9
  8. 8.Which number is the odd one out: 83, 19, 29, 64? (a) 83 (b) 19 (c) 29 (d) 64
  9. 9.Which number is the odd one out: 8, 79, 13, 41? (a) 8 (b) 79 (c) 13 (d) 41
  10. 10.Which number is the odd one out: 61, 71, 37, 98? (a) 61 (b) 71 (c) 37 (d) 98
  11. 11.Which number is the odd one out: 21, 63, 42, 90? (a) 21 (b) 63 (c) 42 (d) 90
  12. 12.Which number is the odd one out: 20, 85, 61, 83? (a) 20 (b) 85 (c) 61 (d) 83
  13. 13.Which number is the odd one out: 82, 11, 73, 83? (a) 82 (b) 11 (c) 73 (d) 83
  14. 14.Which number is the odd one out: 29, 97, 95, 61? (a) 29 (b) 97 (c) 95 (d) 61
  15. 15.Which number is the odd one out: 42, 78, 20, 84? (a) 42 (b) 78 (c) 20 (d) 84
  16. 16.Which number is the odd one out: 11, 88, 32, 8? (a) 11 (b) 88 (c) 32 (d) 8
  17. 17.Which number is the odd one out: 72, 29, 3, 31? (a) 72 (b) 29 (c) 3 (d) 31
  18. 18.Which number is the odd one out: 9, 27, 81, 80? (a) 9 (b) 27 (c) 81 (d) 80
  19. 19.Which number is the odd one out: 61, 57, 83, 29? (a) 61 (b) 57 (c) 83 (d) 29
  20. 20.Which number is the odd one out: 12, 48, 24, 15? (a) 12 (b) 48 (c) 24 (d) 15
  21. 21.Which number is the odd one out: 67, 37, 11, 27? (a) 67 (b) 37 (c) 11 (d) 27
  22. 22.Which number is the odd one out: 30, 97, 13, 89? (a) 30 (b) 97 (c) 13 (d) 89
  23. 23.Which number is the odd one out: 73, 67, 41, 34? (a) 73 (b) 67 (c) 41 (d) 34
  24. 24.Which number is the odd one out: 28, 56, 37, 8? (a) 28 (b) 56 (c) 37 (d) 8
  25. 25.Which number is the odd one out: 86, 74, 82, 23? (a) 86 (b) 74 (c) 82 (d) 23
  26. 26.Which number is the odd one out: 53, 86, 13, 23? (a) 53 (b) 86 (c) 13 (d) 23
  27. 27.Which number is the odd one out: 55, 23, 73, 13? (a) 55 (b) 23 (c) 73 (d) 13
  28. 28.Which number is the odd one out: 63, 9, 84, 36? (a) 63 (b) 9 (c) 84 (d) 36
  29. 29.Which number is the odd one out: 43, 41, 83, 64? (a) 43 (b) 41 (c) 83 (d) 64
  30. 30.Which number is the odd one out: 65, 64, 55, 25? (a) 65 (b) 64 (c) 55 (d) 25
  31. 31.Which number is the odd one out: 47, 21, 17, 67? (a) 47 (b) 21 (c) 17 (d) 67
  32. 32.Which number is the odd one out: 47, 41, 72, 29? (a) 47 (b) 41 (c) 72 (d) 29
  33. 33.Which number is the odd one out: 42, 2, 83, 53? (a) 42 (b) 2 (c) 83 (d) 53
  34. 34.Which number is the odd one out: 99, 19, 89, 29? (a) 99 (b) 19 (c) 89 (d) 29
  35. 35.Which number is the odd one out: 71, 79, 31, 40? (a) 71 (b) 79 (c) 31 (d) 40
  36. 36.Which number is the odd one out: 26, 67, 23, 29? (a) 26 (b) 67 (c) 23 (d) 29
  37. 37.Which number is the odd one out: 98, 27, 99, 63? (a) 98 (b) 27 (c) 99 (d) 63
  38. 38.Which number is the odd one out: 61, 59, 80, 97? (a) 61 (b) 59 (c) 80 (d) 97
  39. 39.Which number is the odd one out: 97, 73, 83, 86? (a) 97 (b) 73 (c) 83 (d) 86
  40. 40.Which number is the odd one out: 19, 73, 43, 90? (a) 19 (b) 73 (c) 43 (d) 90

Answer key

  1. 60
  2. 54
  3. 42
  4. 16
  5. 54
  6. 60
  7. 9
  8. 64
  9. 8
  10. 98
  11. 90
  12. 20
  13. 82
  14. 95
  15. 20
  16. 11
  17. 72
  18. 80
  19. 57
  20. 15
  21. 27
  22. 30
  23. 34
  24. 37
  25. 23
  26. 86
  27. 55
  28. 84
  29. 64
  30. 64
  31. 21
  32. 72
  33. 42
  34. 99
  35. 40
  36. 26
  37. 98
  38. 80
  39. 86
  40. 90

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