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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 944 · 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: 97, 11, 37, 39? (a) 97 (b) 11 (c) 37 (d) 39
  2. 2.Which number is the odd one out: 71, 3, 89, 63? (a) 71 (b) 3 (c) 89 (d) 63
  3. 3.Which number is the odd one out: 3, 41, 31, 54? (a) 3 (b) 41 (c) 31 (d) 54
  4. 4.Which number is the odd one out: 28, 63, 92, 68? (a) 28 (b) 63 (c) 92 (d) 68
  5. 5.Which number is the odd one out: 41, 60, 67, 13? (a) 41 (b) 60 (c) 67 (d) 13
  6. 6.Which number is the odd one out: 43, 17, 9, 83? (a) 43 (b) 17 (c) 9 (d) 83
  7. 7.Which number is the odd one out: 83, 50, 17, 73? (a) 83 (b) 50 (c) 17 (d) 73
  8. 8.Which number is the odd one out: 5, 61, 23, 55? (a) 5 (b) 61 (c) 23 (d) 55
  9. 9.Which number is the odd one out: 64, 16, 4, 87? (a) 64 (b) 16 (c) 4 (d) 87
  10. 10.Which number is the odd one out: 17, 13, 83, 81? (a) 17 (b) 13 (c) 83 (d) 81
  11. 11.Which number is the odd one out: 73, 97, 16, 89? (a) 73 (b) 97 (c) 16 (d) 89
  12. 12.Which number is the odd one out: 23, 79, 43, 72? (a) 23 (b) 79 (c) 43 (d) 72
  13. 13.Which number is the odd one out: 66, 48, 6, 64? (a) 66 (b) 48 (c) 6 (d) 64
  14. 14.Which number is the odd one out: 14, 74, 98, 97? (a) 14 (b) 74 (c) 98 (d) 97
  15. 15.Which number is the odd one out: 88, 97, 8, 32? (a) 88 (b) 97 (c) 8 (d) 32
  16. 16.Which number is the odd one out: 91, 10, 38, 50? (a) 91 (b) 10 (c) 38 (d) 50
  17. 17.Which number is the odd one out: 31, 19, 63, 67? (a) 31 (b) 19 (c) 63 (d) 67
  18. 18.Which number is the odd one out: 73, 43, 33, 71? (a) 73 (b) 43 (c) 33 (d) 71
  19. 19.Which number is the odd one out: 2, 41, 78, 53? (a) 2 (b) 41 (c) 78 (d) 53
  20. 20.Which number is the odd one out: 17, 83, 22, 2? (a) 17 (b) 83 (c) 22 (d) 2
  21. 21.Which number is the odd one out: 41, 19, 85, 17? (a) 41 (b) 19 (c) 85 (d) 17
  22. 22.Which number is the odd one out: 18, 41, 73, 71? (a) 18 (b) 41 (c) 73 (d) 71
  23. 23.Which number is the odd one out: 97, 29, 90, 11? (a) 97 (b) 29 (c) 90 (d) 11
  24. 24.Which number is the odd one out: 11, 32, 31, 13? (a) 11 (b) 32 (c) 31 (d) 13
  25. 25.Which number is the odd one out: 79, 17, 9, 11? (a) 79 (b) 17 (c) 9 (d) 11
  26. 26.Which number is the odd one out: 89, 3, 36, 41? (a) 89 (b) 3 (c) 36 (d) 41
  27. 27.Which number is the odd one out: 11, 97, 44, 59? (a) 11 (b) 97 (c) 44 (d) 59
  28. 28.Which number is the odd one out: 19, 73, 18, 61? (a) 19 (b) 73 (c) 18 (d) 61
  29. 29.Which number is the odd one out: 96, 24, 18, 63? (a) 96 (b) 24 (c) 18 (d) 63
  30. 30.Which number is the odd one out: 71, 88, 19, 73? (a) 71 (b) 88 (c) 19 (d) 73
  31. 31.Which number is the odd one out: 24, 80, 96, 20? (a) 24 (b) 80 (c) 96 (d) 20
  32. 32.Which number is the odd one out: 97, 57, 61, 29? (a) 97 (b) 57 (c) 61 (d) 29
  33. 33.Which number is the odd one out: 16, 4, 79, 64? (a) 16 (b) 4 (c) 79 (d) 64
  34. 34.Which number is the odd one out: 52, 67, 59, 23? (a) 52 (b) 67 (c) 59 (d) 23
  35. 35.Which number is the odd one out: 37, 90, 71, 13? (a) 37 (b) 90 (c) 71 (d) 13
  36. 36.Which number is the odd one out: 39, 93, 28, 69? (a) 39 (b) 93 (c) 28 (d) 69
  37. 37.Which number is the odd one out: 53, 13, 79, 6? (a) 53 (b) 13 (c) 79 (d) 6
  38. 38.Which number is the odd one out: 40, 37, 23, 61? (a) 40 (b) 37 (c) 23 (d) 61
  39. 39.Which number is the odd one out: 47, 38, 61, 59? (a) 47 (b) 38 (c) 61 (d) 59
  40. 40.Which number is the odd one out: 80, 11, 67, 5? (a) 80 (b) 11 (c) 67 (d) 5

Answer key

  1. 39
  2. 63
  3. 54
  4. 63
  5. 60
  6. 9
  7. 50
  8. 55
  9. 87
  10. 81
  11. 16
  12. 72
  13. 64
  14. 97
  15. 97
  16. 91
  17. 63
  18. 33
  19. 78
  20. 22
  21. 85
  22. 18
  23. 90
  24. 32
  25. 9
  26. 36
  27. 44
  28. 18
  29. 63
  30. 88
  31. 20
  32. 57
  33. 79
  34. 52
  35. 90
  36. 28
  37. 6
  38. 40
  39. 38
  40. 80

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