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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 278 · 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: 96, 7, 66, 24? (a) 96 (b) 7 (c) 66 (d) 24
  2. 2.Which number is the odd one out: 51, 85, 99, 27? (a) 51 (b) 85 (c) 99 (d) 27
  3. 3.Which number is the odd one out: 37, 23, 19, 20? (a) 37 (b) 23 (c) 19 (d) 20
  4. 4.Which number is the odd one out: 71, 83, 41, 64? (a) 71 (b) 83 (c) 41 (d) 64
  5. 5.Which number is the odd one out: 59, 29, 83, 44? (a) 59 (b) 29 (c) 83 (d) 44
  6. 6.Which number is the odd one out: 97, 4, 2, 59? (a) 97 (b) 4 (c) 2 (d) 59
  7. 7.Which number is the odd one out: 24, 17, 11, 97? (a) 24 (b) 17 (c) 11 (d) 97
  8. 8.Which number is the odd one out: 37, 82, 79, 43? (a) 37 (b) 82 (c) 79 (d) 43
  9. 9.Which number is the odd one out: 72, 6, 48, 63? (a) 72 (b) 6 (c) 48 (d) 63
  10. 10.Which number is the odd one out: 66, 11, 13, 43? (a) 66 (b) 11 (c) 13 (d) 43
  11. 11.Which number is the odd one out: 73, 81, 59, 11? (a) 73 (b) 81 (c) 59 (d) 11
  12. 12.Which number is the odd one out: 20, 19, 67, 11? (a) 20 (b) 19 (c) 67 (d) 11
  13. 13.Which number is the odd one out: 24, 70, 12, 40? (a) 24 (b) 70 (c) 12 (d) 40
  14. 14.Which number is the odd one out: 22, 73, 83, 79? (a) 22 (b) 73 (c) 83 (d) 79
  15. 15.Which number is the odd one out: 31, 19, 61, 69? (a) 31 (b) 19 (c) 61 (d) 69
  16. 16.Which number is the odd one out: 20, 88, 17, 80? (a) 20 (b) 88 (c) 17 (d) 80
  17. 17.Which number is the odd one out: 11, 17, 33, 71? (a) 11 (b) 17 (c) 33 (d) 71
  18. 18.Which number is the odd one out: 68, 32, 42, 96? (a) 68 (b) 32 (c) 42 (d) 96
  19. 19.Which number is the odd one out: 83, 57, 43, 13? (a) 83 (b) 57 (c) 43 (d) 13
  20. 20.Which number is the odd one out: 2, 38, 67, 89? (a) 2 (b) 38 (c) 67 (d) 89
  21. 21.Which number is the odd one out: 64, 4, 6, 16? (a) 64 (b) 4 (c) 6 (d) 16
  22. 22.Which number is the odd one out: 17, 47, 44, 59? (a) 17 (b) 47 (c) 44 (d) 59
  23. 23.Which number is the odd one out: 21, 13, 43, 7? (a) 21 (b) 13 (c) 43 (d) 7
  24. 24.Which number is the odd one out: 29, 17, 98, 7? (a) 29 (b) 17 (c) 98 (d) 7
  25. 25.Which number is the odd one out: 27, 9, 79, 81? (a) 27 (b) 9 (c) 79 (d) 81
  26. 26.Which number is the odd one out: 3, 60, 5, 17? (a) 3 (b) 60 (c) 5 (d) 17
  27. 27.Which number is the odd one out: 40, 66, 96, 6? (a) 40 (b) 66 (c) 96 (d) 6
  28. 28.Which number is the odd one out: 67, 81, 59, 43? (a) 67 (b) 81 (c) 59 (d) 43
  29. 29.Which number is the odd one out: 5, 23, 65, 31? (a) 5 (b) 23 (c) 65 (d) 31
  30. 30.Which number is the odd one out: 80, 96, 91, 60? (a) 80 (b) 96 (c) 91 (d) 60
  31. 31.Which number is the odd one out: 83, 60, 23, 41? (a) 83 (b) 60 (c) 23 (d) 41
  32. 32.Which number is the odd one out: 53, 76, 13, 41? (a) 53 (b) 76 (c) 13 (d) 41
  33. 33.Which number is the odd one out: 37, 11, 94, 89? (a) 37 (b) 11 (c) 94 (d) 89
  34. 34.Which number is the odd one out: 3, 67, 39, 41? (a) 3 (b) 67 (c) 39 (d) 41
  35. 35.Which number is the odd one out: 64, 16, 23, 4? (a) 64 (b) 16 (c) 23 (d) 4
  36. 36.Which number is the odd one out: 97, 79, 66, 23? (a) 97 (b) 79 (c) 66 (d) 23
  37. 37.Which number is the odd one out: 71, 47, 34, 13? (a) 71 (b) 47 (c) 34 (d) 13
  38. 38.Which number is the odd one out: 48, 88, 59, 24? (a) 48 (b) 88 (c) 59 (d) 24
  39. 39.Which number is the odd one out: 64, 43, 67, 89? (a) 64 (b) 43 (c) 67 (d) 89
  40. 40.Which number is the odd one out: 90, 20, 68, 12? (a) 90 (b) 20 (c) 68 (d) 12

Answer key

  1. 7
  2. 85
  3. 20
  4. 64
  5. 44
  6. 4
  7. 24
  8. 82
  9. 63
  10. 66
  11. 81
  12. 20
  13. 70
  14. 22
  15. 69
  16. 17
  17. 33
  18. 42
  19. 57
  20. 38
  21. 6
  22. 44
  23. 21
  24. 98
  25. 79
  26. 60
  27. 40
  28. 81
  29. 65
  30. 91
  31. 60
  32. 76
  33. 94
  34. 39
  35. 23
  36. 66
  37. 34
  38. 59
  39. 64
  40. 90

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