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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 648 · 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: 27, 3, 17, 83? (a) 27 (b) 3 (c) 17 (d) 83
  2. 2.Which number is the odd one out: 29, 60, 53, 73? (a) 29 (b) 60 (c) 53 (d) 73
  3. 3.Which number is the odd one out: 39, 74, 73, 3? (a) 39 (b) 74 (c) 73 (d) 3
  4. 4.Which number is the odd one out: 59, 41, 35, 23? (a) 59 (b) 41 (c) 35 (d) 23
  5. 5.Which number is the odd one out: 71, 47, 59, 70? (a) 71 (b) 47 (c) 59 (d) 70
  6. 6.Which number is the odd one out: 86, 31, 83, 61? (a) 86 (b) 31 (c) 83 (d) 61
  7. 7.Which number is the odd one out: 25, 16, 64, 5? (a) 25 (b) 16 (c) 64 (d) 5
  8. 8.Which number is the odd one out: 76, 79, 11, 53? (a) 76 (b) 79 (c) 11 (d) 53
  9. 9.Which number is the odd one out: 71, 12, 17, 31? (a) 71 (b) 12 (c) 17 (d) 31
  10. 10.Which number is the odd one out: 75, 5, 74, 3? (a) 75 (b) 5 (c) 74 (d) 3
  11. 11.Which number is the odd one out: 61, 3, 53, 51? (a) 61 (b) 3 (c) 53 (d) 51
  12. 12.Which number is the odd one out: 74, 8, 51, 88? (a) 74 (b) 8 (c) 51 (d) 88
  13. 13.Which number is the odd one out: 48, 84, 88, 32? (a) 48 (b) 84 (c) 88 (d) 32
  14. 14.Which number is the odd one out: 66, 33, 91, 6? (a) 66 (b) 33 (c) 91 (d) 6
  15. 15.Which number is the odd one out: 18, 49, 15, 90? (a) 18 (b) 49 (c) 15 (d) 90
  16. 16.Which number is the odd one out: 7, 23, 19, 77? (a) 7 (b) 23 (c) 19 (d) 77
  17. 17.Which number is the odd one out: 31, 75, 43, 19? (a) 31 (b) 75 (c) 43 (d) 19
  18. 18.Which number is the odd one out: 97, 17, 43, 10? (a) 97 (b) 17 (c) 43 (d) 10
  19. 19.Which number is the odd one out: 43, 29, 17, 20? (a) 43 (b) 29 (c) 17 (d) 20
  20. 20.Which number is the odd one out: 2, 52, 68, 76? (a) 2 (b) 52 (c) 68 (d) 76
  21. 21.Which number is the odd one out: 19, 35, 37, 59? (a) 19 (b) 35 (c) 37 (d) 59
  22. 22.Which number is the odd one out: 43, 59, 58, 83? (a) 43 (b) 59 (c) 58 (d) 83
  23. 23.Which number is the odd one out: 89, 59, 41, 65? (a) 89 (b) 59 (c) 41 (d) 65
  24. 24.Which number is the odd one out: 72, 99, 48, 12? (a) 72 (b) 99 (c) 48 (d) 12
  25. 25.Which number is the odd one out: 74, 24, 5, 48? (a) 74 (b) 24 (c) 5 (d) 48
  26. 26.Which number is the odd one out: 83, 71, 22, 67? (a) 83 (b) 71 (c) 22 (d) 67
  27. 27.Which number is the odd one out: 9, 27, 25, 99? (a) 9 (b) 27 (c) 25 (d) 99
  28. 28.Which number is the odd one out: 28, 77, 91, 60? (a) 28 (b) 77 (c) 91 (d) 60
  29. 29.Which number is the odd one out: 80, 40, 8, 51? (a) 80 (b) 40 (c) 8 (d) 51
  30. 30.Which number is the odd one out: 2, 23, 97, 71? (a) 2 (b) 23 (c) 97 (d) 71
  31. 31.Which number is the odd one out: 32, 29, 89, 67? (a) 32 (b) 29 (c) 89 (d) 67
  32. 32.Which number is the odd one out: 17, 47, 37, 24? (a) 17 (b) 47 (c) 37 (d) 24
  33. 33.Which number is the odd one out: 11, 13, 10, 2? (a) 11 (b) 13 (c) 10 (d) 2
  34. 34.Which number is the odd one out: 61, 52, 24, 48? (a) 61 (b) 52 (c) 24 (d) 48
  35. 35.Which number is the odd one out: 66, 17, 47, 61? (a) 66 (b) 17 (c) 47 (d) 61
  36. 36.Which number is the odd one out: 96, 65, 48, 66? (a) 96 (b) 65 (c) 48 (d) 66
  37. 37.Which number is the odd one out: 67, 24, 29, 19? (a) 67 (b) 24 (c) 29 (d) 19
  38. 38.Which number is the odd one out: 17, 7, 63, 47? (a) 17 (b) 7 (c) 63 (d) 47
  39. 39.Which number is the odd one out: 61, 13, 27, 73? (a) 61 (b) 13 (c) 27 (d) 73
  40. 40.Which number is the odd one out: 71, 79, 93, 6? (a) 71 (b) 79 (c) 93 (d) 6

Answer key

  1. 27
  2. 60
  3. 74
  4. 35
  5. 70
  6. 86
  7. 5
  8. 76
  9. 12
  10. 74
  11. 51
  12. 51
  13. 84
  14. 91
  15. 49
  16. 77
  17. 75
  18. 10
  19. 20
  20. 2
  21. 35
  22. 58
  23. 65
  24. 99
  25. 5
  26. 22
  27. 25
  28. 60
  29. 51
  30. 2
  31. 32
  32. 24
  33. 10
  34. 61
  35. 66
  36. 65
  37. 24
  38. 63
  39. 27
  40. 6

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