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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 740 · 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: 54, 18, 37, 99? (a) 54 (b) 18 (c) 37 (d) 99
  2. 2.Which number is the odd one out: 72, 93, 24, 18? (a) 72 (b) 93 (c) 24 (d) 18
  3. 3.Which number is the odd one out: 41, 69, 67, 23? (a) 41 (b) 69 (c) 67 (d) 23
  4. 4.Which number is the odd one out: 82, 13, 37, 43? (a) 82 (b) 13 (c) 37 (d) 43
  5. 5.Which number is the odd one out: 54, 18, 43, 51? (a) 54 (b) 18 (c) 43 (d) 51
  6. 6.Which number is the odd one out: 59, 53, 9, 79? (a) 59 (b) 53 (c) 9 (d) 79
  7. 7.Which number is the odd one out: 41, 17, 2, 56? (a) 41 (b) 17 (c) 2 (d) 56
  8. 8.Which number is the odd one out: 64, 16, 4, 55? (a) 64 (b) 16 (c) 4 (d) 55
  9. 9.Which number is the odd one out: 31, 72, 2, 11? (a) 31 (b) 72 (c) 2 (d) 11
  10. 10.Which number is the odd one out: 54, 90, 45, 61? (a) 54 (b) 90 (c) 45 (d) 61
  11. 11.Which number is the odd one out: 12, 4, 64, 16? (a) 12 (b) 4 (c) 64 (d) 16
  12. 12.Which number is the odd one out: 81, 36, 24, 96? (a) 81 (b) 36 (c) 24 (d) 96
  13. 13.Which number is the odd one out: 71, 48, 41, 79? (a) 71 (b) 48 (c) 41 (d) 79
  14. 14.Which number is the odd one out: 73, 41, 62, 71? (a) 73 (b) 41 (c) 62 (d) 71
  15. 15.Which number is the odd one out: 90, 96, 92, 8? (a) 90 (b) 96 (c) 92 (d) 8
  16. 16.Which number is the odd one out: 83, 19, 69, 79? (a) 83 (b) 19 (c) 69 (d) 79
  17. 17.Which number is the odd one out: 22, 87, 92, 68? (a) 22 (b) 87 (c) 92 (d) 68
  18. 18.Which number is the odd one out: 31, 29, 92, 89? (a) 31 (b) 29 (c) 92 (d) 89
  19. 19.Which number is the odd one out: 59, 17, 73, 14? (a) 59 (b) 17 (c) 73 (d) 14
  20. 20.Which number is the odd one out: 25, 16, 55, 64? (a) 25 (b) 16 (c) 55 (d) 64
  21. 21.Which number is the odd one out: 37, 61, 83, 20? (a) 37 (b) 61 (c) 83 (d) 20
  22. 22.Which number is the odd one out: 37, 29, 18, 61? (a) 37 (b) 29 (c) 18 (d) 61
  23. 23.Which number is the odd one out: 2, 89, 64, 83? (a) 2 (b) 89 (c) 64 (d) 83
  24. 24.Which number is the odd one out: 2, 73, 19, 18? (a) 2 (b) 73 (c) 19 (d) 18
  25. 25.Which number is the odd one out: 81, 64, 16, 99? (a) 81 (b) 64 (c) 16 (d) 99
  26. 26.Which number is the odd one out: 3, 61, 89, 93? (a) 3 (b) 61 (c) 89 (d) 93
  27. 27.Which number is the odd one out: 11, 17, 76, 43? (a) 11 (b) 17 (c) 76 (d) 43
  28. 28.Which number is the odd one out: 31, 41, 93, 43? (a) 31 (b) 41 (c) 93 (d) 43
  29. 29.Which number is the odd one out: 20, 37, 11, 67? (a) 20 (b) 37 (c) 11 (d) 67
  30. 30.Which number is the odd one out: 16, 21, 64, 56? (a) 16 (b) 21 (c) 64 (d) 56
  31. 31.Which number is the odd one out: 96, 93, 61, 24? (a) 96 (b) 93 (c) 61 (d) 24
  32. 32.Which number is the odd one out: 23, 42, 3, 79? (a) 23 (b) 42 (c) 3 (d) 79
  33. 33.Which number is the odd one out: 59, 71, 37, 22? (a) 59 (b) 71 (c) 37 (d) 22
  34. 34.Which number is the odd one out: 31, 73, 72, 47? (a) 31 (b) 73 (c) 72 (d) 47
  35. 35.Which number is the odd one out: 64, 16, 32, 23? (a) 64 (b) 16 (c) 32 (d) 23
  36. 36.Which number is the odd one out: 8, 53, 89, 19? (a) 8 (b) 53 (c) 89 (d) 19
  37. 37.Which number is the odd one out: 8, 97, 31, 29? (a) 8 (b) 97 (c) 31 (d) 29
  38. 38.Which number is the odd one out: 89, 73, 84, 61? (a) 89 (b) 73 (c) 84 (d) 61
  39. 39.Which number is the odd one out: 96, 99, 48, 72? (a) 96 (b) 99 (c) 48 (d) 72
  40. 40.Which number is the odd one out: 79, 24, 2, 73? (a) 79 (b) 24 (c) 2 (d) 73

Answer key

  1. 37
  2. 93
  3. 69
  4. 82
  5. 43
  6. 9
  7. 56
  8. 55
  9. 72
  10. 61
  11. 12
  12. 81
  13. 48
  14. 62
  15. 90
  16. 69
  17. 87
  18. 92
  19. 14
  20. 55
  21. 20
  22. 18
  23. 64
  24. 18
  25. 99
  26. 93
  27. 76
  28. 93
  29. 20
  30. 21
  31. 61
  32. 42
  33. 22
  34. 72
  35. 23
  36. 8
  37. 8
  38. 84
  39. 99
  40. 24

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