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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 315 · 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: 73, 67, 34, 13? (a) 73 (b) 67 (c) 34 (d) 13
  2. 2.Which number is the odd one out: 89, 67, 61, 74? (a) 89 (b) 67 (c) 61 (d) 74
  3. 3.Which number is the odd one out: 91, 77, 55, 35? (a) 91 (b) 77 (c) 55 (d) 35
  4. 4.Which number is the odd one out: 85, 8, 88, 40? (a) 85 (b) 8 (c) 88 (d) 40
  5. 5.Which number is the odd one out: 79, 97, 6, 43? (a) 79 (b) 97 (c) 6 (d) 43
  6. 6.Which number is the odd one out: 49, 89, 13, 31? (a) 49 (b) 89 (c) 13 (d) 31
  7. 7.Which number is the odd one out: 90, 5, 11, 31? (a) 90 (b) 5 (c) 11 (d) 31
  8. 8.Which number is the odd one out: 71, 14, 2, 59? (a) 71 (b) 14 (c) 2 (d) 59
  9. 9.Which number is the odd one out: 11, 61, 20, 67? (a) 11 (b) 61 (c) 20 (d) 67
  10. 10.Which number is the odd one out: 13, 33, 29, 30? (a) 13 (b) 33 (c) 29 (d) 30
  11. 11.Which number is the odd one out: 29, 23, 21, 42? (a) 29 (b) 23 (c) 21 (d) 42
  12. 12.Which number is the odd one out: 89, 59, 41, 20? (a) 89 (b) 59 (c) 41 (d) 20
  13. 13.Which number is the odd one out: 31, 15, 79, 17? (a) 31 (b) 15 (c) 79 (d) 17
  14. 14.Which number is the odd one out: 14, 77, 75, 98? (a) 14 (b) 77 (c) 75 (d) 98
  15. 15.Which number is the odd one out: 7, 43, 17, 42? (a) 7 (b) 43 (c) 17 (d) 42
  16. 16.Which number is the odd one out: 15, 37, 31, 23? (a) 15 (b) 37 (c) 31 (d) 23
  17. 17.Which number is the odd one out: 24, 96, 77, 32? (a) 24 (b) 96 (c) 77 (d) 32
  18. 18.Which number is the odd one out: 31, 19, 59, 62? (a) 31 (b) 19 (c) 59 (d) 62
  19. 19.Which number is the odd one out: 96, 8, 83, 24? (a) 96 (b) 8 (c) 83 (d) 24
  20. 20.Which number is the odd one out: 31, 88, 89, 43? (a) 31 (b) 88 (c) 89 (d) 43
  21. 21.Which number is the odd one out: 20, 23, 13, 5? (a) 20 (b) 23 (c) 13 (d) 5
  22. 22.Which number is the odd one out: 79, 13, 17, 88? (a) 79 (b) 13 (c) 17 (d) 88
  23. 23.Which number is the odd one out: 29, 74, 71, 37? (a) 29 (b) 74 (c) 71 (d) 37
  24. 24.Which number is the odd one out: 34, 19, 71, 13? (a) 34 (b) 19 (c) 71 (d) 13
  25. 25.Which number is the odd one out: 64, 11, 16, 88? (a) 64 (b) 11 (c) 16 (d) 88
  26. 26.Which number is the odd one out: 15, 3, 95, 5? (a) 15 (b) 3 (c) 95 (d) 5
  27. 27.Which number is the odd one out: 90, 20, 18, 66? (a) 90 (b) 20 (c) 18 (d) 66
  28. 28.Which number is the odd one out: 83, 47, 11, 46? (a) 83 (b) 47 (c) 11 (d) 46
  29. 29.Which number is the odd one out: 28, 29, 7, 71? (a) 28 (b) 29 (c) 7 (d) 71
  30. 30.Which number is the odd one out: 83, 23, 26, 89? (a) 83 (b) 23 (c) 26 (d) 89
  31. 31.Which number is the odd one out: 38, 55, 15, 75? (a) 38 (b) 55 (c) 15 (d) 75
  32. 32.Which number is the odd one out: 88, 98, 28, 14? (a) 88 (b) 98 (c) 28 (d) 14
  33. 33.Which number is the odd one out: 19, 47, 51, 13? (a) 19 (b) 47 (c) 51 (d) 13
  34. 34.Which number is the odd one out: 78, 18, 43, 54? (a) 78 (b) 18 (c) 43 (d) 54
  35. 35.Which number is the odd one out: 17, 23, 18, 89? (a) 17 (b) 23 (c) 18 (d) 89
  36. 36.Which number is the odd one out: 83, 86, 24, 96? (a) 83 (b) 86 (c) 24 (d) 96
  37. 37.Which number is the odd one out: 71, 5, 85, 95? (a) 71 (b) 5 (c) 85 (d) 95
  38. 38.Which number is the odd one out: 23, 89, 67, 55? (a) 23 (b) 89 (c) 67 (d) 55
  39. 39.Which number is the odd one out: 53, 28, 17, 79? (a) 53 (b) 28 (c) 17 (d) 79
  40. 40.Which number is the odd one out: 37, 31, 42, 3? (a) 37 (b) 31 (c) 42 (d) 3

Answer key

  1. 34
  2. 74
  3. 55
  4. 85
  5. 6
  6. 49
  7. 90
  8. 14
  9. 20
  10. 30
  11. 42
  12. 20
  13. 15
  14. 75
  15. 42
  16. 15
  17. 77
  18. 62
  19. 83
  20. 88
  21. 20
  22. 88
  23. 74
  24. 34
  25. 11
  26. 3
  27. 20
  28. 46
  29. 28
  30. 26
  31. 38
  32. 88
  33. 51
  34. 43
  35. 18
  36. 83
  37. 71
  38. 55
  39. 28
  40. 42

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