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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 832 · 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: 17, 19, 27, 83? (a) 17 (b) 19 (c) 27 (d) 83
  2. 2.Which number is the odd one out: 24, 50, 95, 55? (a) 24 (b) 50 (c) 95 (d) 55
  3. 3.Which number is the odd one out: 9, 27, 76, 81? (a) 9 (b) 27 (c) 76 (d) 81
  4. 4.Which number is the odd one out: 19, 66, 97, 83? (a) 19 (b) 66 (c) 97 (d) 83
  5. 5.Which number is the odd one out: 50, 53, 23, 89? (a) 50 (b) 53 (c) 23 (d) 89
  6. 6.Which number is the odd one out: 31, 29, 17, 35? (a) 31 (b) 29 (c) 17 (d) 35
  7. 7.Which number is the odd one out: 77, 12, 84, 91? (a) 77 (b) 12 (c) 84 (d) 91
  8. 8.Which number is the odd one out: 66, 6, 4, 12? (a) 66 (b) 6 (c) 4 (d) 12
  9. 9.Which number is the odd one out: 53, 23, 11, 6? (a) 53 (b) 23 (c) 11 (d) 6
  10. 10.Which number is the odd one out: 73, 97, 60, 5? (a) 73 (b) 97 (c) 60 (d) 5
  11. 11.Which number is the odd one out: 80, 81, 9, 64? (a) 80 (b) 81 (c) 9 (d) 64
  12. 12.Which number is the odd one out: 83, 71, 11, 45? (a) 83 (b) 71 (c) 11 (d) 45
  13. 13.Which number is the odd one out: 29, 37, 63, 19? (a) 29 (b) 37 (c) 63 (d) 19
  14. 14.Which number is the odd one out: 9, 73, 17, 79? (a) 9 (b) 73 (c) 17 (d) 79
  15. 15.Which number is the odd one out: 36, 31, 41, 11? (a) 36 (b) 31 (c) 41 (d) 11
  16. 16.Which number is the odd one out: 59, 69, 43, 90? (a) 59 (b) 69 (c) 43 (d) 90
  17. 17.Which number is the odd one out: 67, 61, 35, 73? (a) 67 (b) 61 (c) 35 (d) 73
  18. 18.Which number is the odd one out: 47, 73, 83, 86? (a) 47 (b) 73 (c) 83 (d) 86
  19. 19.Which number is the odd one out: 36, 31, 57, 61? (a) 36 (b) 31 (c) 57 (d) 61
  20. 20.Which number is the odd one out: 48, 65, 85, 75? (a) 48 (b) 65 (c) 85 (d) 75
  21. 21.Which number is the odd one out: 57, 93, 56, 87? (a) 57 (b) 93 (c) 56 (d) 87
  22. 22.Which number is the odd one out: 31, 41, 37, 26? (a) 31 (b) 41 (c) 37 (d) 26
  23. 23.Which number is the odd one out: 72, 50, 18, 48? (a) 72 (b) 50 (c) 18 (d) 48
  24. 24.Which number is the odd one out: 96, 69, 24, 59? (a) 96 (b) 69 (c) 24 (d) 59
  25. 25.Which number is the odd one out: 37, 29, 24, 13? (a) 37 (b) 29 (c) 24 (d) 13
  26. 26.Which number is the odd one out: 3, 23, 96, 47? (a) 3 (b) 23 (c) 96 (d) 47
  27. 27.Which number is the odd one out: 88, 66, 80, 40? (a) 88 (b) 66 (c) 80 (d) 40
  28. 28.Which number is the odd one out: 81, 18, 42, 9? (a) 81 (b) 18 (c) 42 (d) 9
  29. 29.Which number is the odd one out: 8, 88, 32, 93? (a) 8 (b) 88 (c) 32 (d) 93
  30. 30.Which number is the odd one out: 83, 59, 56, 71? (a) 83 (b) 59 (c) 56 (d) 71
  31. 31.Which number is the odd one out: 3, 59, 14, 69? (a) 3 (b) 59 (c) 14 (d) 69
  32. 32.Which number is the odd one out: 98, 89, 71, 17? (a) 98 (b) 89 (c) 71 (d) 17
  33. 33.Which number is the odd one out: 35, 59, 7, 47? (a) 35 (b) 59 (c) 7 (d) 47
  34. 34.Which number is the odd one out: 47, 43, 76, 71? (a) 47 (b) 43 (c) 76 (d) 71
  35. 35.Which number is the odd one out: 35, 90, 99, 18? (a) 35 (b) 90 (c) 99 (d) 18
  36. 36.Which number is the odd one out: 23, 83, 19, 56? (a) 23 (b) 83 (c) 19 (d) 56
  37. 37.Which number is the odd one out: 92, 62, 76, 7? (a) 92 (b) 62 (c) 76 (d) 7
  38. 38.Which number is the odd one out: 59, 43, 32, 2? (a) 59 (b) 43 (c) 32 (d) 2
  39. 39.Which number is the odd one out: 79, 89, 43, 9? (a) 79 (b) 89 (c) 43 (d) 9
  40. 40.Which number is the odd one out: 23, 64, 2, 29? (a) 23 (b) 64 (c) 2 (d) 29

Answer key

  1. 27
  2. 24
  3. 76
  4. 66
  5. 50
  6. 35
  7. 12
  8. 4
  9. 6
  10. 60
  11. 80
  12. 45
  13. 63
  14. 9
  15. 36
  16. 90
  17. 35
  18. 86
  19. 36
  20. 48
  21. 56
  22. 26
  23. 50
  24. 59
  25. 24
  26. 96
  27. 66
  28. 42
  29. 93
  30. 56
  31. 14
  32. 98
  33. 35
  34. 76
  35. 35
  36. 56
  37. 7
  38. 32
  39. 9
  40. 64

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