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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 697 · 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: 89, 79, 31, 64? (a) 89 (b) 79 (c) 31 (d) 64
  2. 2.Which number is the odd one out: 71, 97, 17, 82? (a) 71 (b) 97 (c) 17 (d) 82
  3. 3.Which number is the odd one out: 97, 79, 22, 43? (a) 97 (b) 79 (c) 22 (d) 43
  4. 4.Which number is the odd one out: 89, 51, 71, 3? (a) 89 (b) 51 (c) 71 (d) 3
  5. 5.Which number is the odd one out: 52, 8, 9, 32? (a) 52 (b) 8 (c) 9 (d) 32
  6. 6.Which number is the odd one out: 32, 23, 19, 11? (a) 32 (b) 23 (c) 19 (d) 11
  7. 7.Which number is the odd one out: 55, 14, 35, 10? (a) 55 (b) 14 (c) 35 (d) 10
  8. 8.Which number is the odd one out: 91, 54, 98, 63? (a) 91 (b) 54 (c) 98 (d) 63
  9. 9.Which number is the odd one out: 31, 41, 49, 59? (a) 31 (b) 41 (c) 49 (d) 59
  10. 10.Which number is the odd one out: 90, 18, 80, 72? (a) 90 (b) 18 (c) 80 (d) 72
  11. 11.Which number is the odd one out: 53, 59, 54, 83? (a) 53 (b) 59 (c) 54 (d) 83
  12. 12.Which number is the odd one out: 50, 10, 21, 85? (a) 50 (b) 10 (c) 21 (d) 85
  13. 13.Which number is the odd one out: 18, 78, 20, 90? (a) 18 (b) 78 (c) 20 (d) 90
  14. 14.Which number is the odd one out: 19, 6, 89, 37? (a) 19 (b) 6 (c) 89 (d) 37
  15. 15.Which number is the odd one out: 93, 2, 3, 87? (a) 93 (b) 2 (c) 3 (d) 87
  16. 16.Which number is the odd one out: 88, 16, 58, 4? (a) 88 (b) 16 (c) 58 (d) 4
  17. 17.Which number is the odd one out: 78, 67, 13, 71? (a) 78 (b) 67 (c) 13 (d) 71
  18. 18.Which number is the odd one out: 53, 67, 97, 72? (a) 53 (b) 67 (c) 97 (d) 72
  19. 19.Which number is the odd one out: 41, 2, 59, 72? (a) 41 (b) 2 (c) 59 (d) 72
  20. 20.Which number is the odd one out: 43, 37, 7, 14? (a) 43 (b) 37 (c) 7 (d) 14
  21. 21.Which number is the odd one out: 93, 68, 44, 62? (a) 93 (b) 68 (c) 44 (d) 62
  22. 22.Which number is the odd one out: 67, 29, 80, 31? (a) 67 (b) 29 (c) 80 (d) 31
  23. 23.Which number is the odd one out: 23, 41, 91, 13? (a) 23 (b) 41 (c) 91 (d) 13
  24. 24.Which number is the odd one out: 85, 95, 5, 2? (a) 85 (b) 95 (c) 5 (d) 2
  25. 25.Which number is the odd one out: 59, 35, 97, 19? (a) 59 (b) 35 (c) 97 (d) 19
  26. 26.Which number is the odd one out: 5, 97, 55, 85? (a) 5 (b) 97 (c) 55 (d) 85
  27. 27.Which number is the odd one out: 43, 48, 59, 51? (a) 43 (b) 48 (c) 59 (d) 51
  28. 28.Which number is the odd one out: 48, 71, 24, 12? (a) 48 (b) 71 (c) 24 (d) 12
  29. 29.Which number is the odd one out: 12, 48, 16, 64? (a) 12 (b) 48 (c) 16 (d) 64
  30. 30.Which number is the odd one out: 96, 48, 18, 45? (a) 96 (b) 48 (c) 18 (d) 45
  31. 31.Which number is the odd one out: 53, 41, 70, 17? (a) 53 (b) 41 (c) 70 (d) 17
  32. 32.Which number is the odd one out: 81, 89, 43, 47? (a) 81 (b) 89 (c) 43 (d) 47
  33. 33.Which number is the odd one out: 43, 46, 77, 7? (a) 43 (b) 46 (c) 77 (d) 7
  34. 34.Which number is the odd one out: 40, 47, 41, 53? (a) 40 (b) 47 (c) 41 (d) 53
  35. 35.Which number is the odd one out: 97, 82, 61, 41? (a) 97 (b) 82 (c) 61 (d) 41
  36. 36.Which number is the odd one out: 16, 64, 4, 26? (a) 16 (b) 64 (c) 4 (d) 26
  37. 37.Which number is the odd one out: 67, 12, 79, 11? (a) 67 (b) 12 (c) 79 (d) 11
  38. 38.Which number is the odd one out: 53, 31, 3, 78? (a) 53 (b) 31 (c) 3 (d) 78
  39. 39.Which number is the odd one out: 89, 40, 29, 13? (a) 89 (b) 40 (c) 29 (d) 13
  40. 40.Which number is the odd one out: 16, 15, 64, 8? (a) 16 (b) 15 (c) 64 (d) 8

Answer key

  1. 64
  2. 82
  3. 22
  4. 51
  5. 9
  6. 32
  7. 14
  8. 54
  9. 49
  10. 80
  11. 54
  12. 21
  13. 20
  14. 6
  15. 2
  16. 58
  17. 78
  18. 72
  19. 72
  20. 14
  21. 93
  22. 80
  23. 91
  24. 2
  25. 35
  26. 97
  27. 48
  28. 71
  29. 12
  30. 45
  31. 70
  32. 81
  33. 46
  34. 40
  35. 82
  36. 26
  37. 12
  38. 78
  39. 40
  40. 15

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