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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 228 · 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: 35, 20, 91, 77? (a) 35 (b) 20 (c) 91 (d) 77
  2. 2.Which number is the odd one out: 66, 48, 79, 96? (a) 66 (b) 48 (c) 79 (d) 96
  3. 3.Which number is the odd one out: 28, 7, 24, 96? (a) 28 (b) 7 (c) 24 (d) 96
  4. 4.Which number is the odd one out: 2, 78, 71, 41? (a) 2 (b) 78 (c) 71 (d) 41
  5. 5.Which number is the odd one out: 63, 27, 56, 99? (a) 63 (b) 27 (c) 56 (d) 99
  6. 6.Which number is the odd one out: 59, 23, 89, 22? (a) 59 (b) 23 (c) 89 (d) 22
  7. 7.Which number is the odd one out: 29, 23, 50, 31? (a) 29 (b) 23 (c) 50 (d) 31
  8. 8.Which number is the odd one out: 16, 4, 27, 64? (a) 16 (b) 4 (c) 27 (d) 64
  9. 9.Which number is the odd one out: 54, 79, 18, 2? (a) 54 (b) 79 (c) 18 (d) 2
  10. 10.Which number is the odd one out: 30, 46, 54, 90? (a) 30 (b) 46 (c) 54 (d) 90
  11. 11.Which number is the odd one out: 97, 6, 89, 13? (a) 97 (b) 6 (c) 89 (d) 13
  12. 12.Which number is the odd one out: 53, 52, 48, 24? (a) 53 (b) 52 (c) 48 (d) 24
  13. 13.Which number is the odd one out: 24, 65, 75, 55? (a) 24 (b) 65 (c) 75 (d) 55
  14. 14.Which number is the odd one out: 31, 79, 93, 89? (a) 31 (b) 79 (c) 93 (d) 89
  15. 15.Which number is the odd one out: 64, 34, 4, 16? (a) 64 (b) 34 (c) 4 (d) 16
  16. 16.Which number is the odd one out: 29, 59, 3, 60? (a) 29 (b) 59 (c) 3 (d) 60
  17. 17.Which number is the odd one out: 89, 59, 97, 42? (a) 89 (b) 59 (c) 97 (d) 42
  18. 18.Which number is the odd one out: 79, 14, 17, 23? (a) 79 (b) 14 (c) 17 (d) 23
  19. 19.Which number is the odd one out: 31, 59, 43, 82? (a) 31 (b) 59 (c) 43 (d) 82
  20. 20.Which number is the odd one out: 79, 56, 53, 71? (a) 79 (b) 56 (c) 53 (d) 71
  21. 21.Which number is the odd one out: 25, 64, 16, 55? (a) 25 (b) 64 (c) 16 (d) 55
  22. 22.Which number is the odd one out: 79, 89, 36, 67? (a) 79 (b) 89 (c) 36 (d) 67
  23. 23.Which number is the odd one out: 41, 73, 15, 5? (a) 41 (b) 73 (c) 15 (d) 5
  24. 24.Which number is the odd one out: 96, 48, 40, 5? (a) 96 (b) 48 (c) 40 (d) 5
  25. 25.Which number is the odd one out: 47, 8, 19, 11? (a) 47 (b) 8 (c) 19 (d) 11
  26. 26.Which number is the odd one out: 72, 27, 12, 24? (a) 72 (b) 27 (c) 12 (d) 24
  27. 27.Which number is the odd one out: 21, 24, 12, 96? (a) 21 (b) 24 (c) 12 (d) 96
  28. 28.Which number is the odd one out: 29, 33, 90, 13? (a) 29 (b) 33 (c) 90 (d) 13
  29. 29.Which number is the odd one out: 89, 85, 47, 41? (a) 89 (b) 85 (c) 47 (d) 41
  30. 30.Which number is the odd one out: 37, 29, 9, 41? (a) 37 (b) 29 (c) 9 (d) 41
  31. 31.Which number is the odd one out: 65, 85, 44, 10? (a) 65 (b) 85 (c) 44 (d) 10
  32. 32.Which number is the odd one out: 67, 42, 17, 83? (a) 67 (b) 42 (c) 17 (d) 83
  33. 33.Which number is the odd one out: 4, 2, 13, 23? (a) 4 (b) 2 (c) 13 (d) 23
  34. 34.Which number is the odd one out: 47, 52, 43, 67? (a) 47 (b) 52 (c) 43 (d) 67
  35. 35.Which number is the odd one out: 59, 25, 13, 53? (a) 59 (b) 25 (c) 13 (d) 53
  36. 36.Which number is the odd one out: 92, 12, 78, 35? (a) 92 (b) 12 (c) 78 (d) 35
  37. 37.Which number is the odd one out: 59, 4, 29, 73? (a) 59 (b) 4 (c) 29 (d) 73
  38. 38.Which number is the odd one out: 83, 98, 67, 23? (a) 83 (b) 98 (c) 67 (d) 23
  39. 39.Which number is the odd one out: 44, 49, 26, 52? (a) 44 (b) 49 (c) 26 (d) 52
  40. 40.Which number is the odd one out: 64, 32, 16, 6? (a) 64 (b) 32 (c) 16 (d) 6

Answer key

  1. 20
  2. 79
  3. 7
  4. 78
  5. 56
  6. 22
  7. 50
  8. 27
  9. 79
  10. 46
  11. 6
  12. 53
  13. 24
  14. 93
  15. 34
  16. 60
  17. 42
  18. 14
  19. 82
  20. 56
  21. 55
  22. 36
  23. 15
  24. 5
  25. 8
  26. 27
  27. 21
  28. 90
  29. 85
  30. 9
  31. 44
  32. 42
  33. 4
  34. 52
  35. 25
  36. 35
  37. 4
  38. 98
  39. 49
  40. 6

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