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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 375 · 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: 90, 5, 11, 31? (a) 90 (b) 5 (c) 11 (d) 31
  2. 2.Which number is the odd one out: 90, 31, 41, 19? (a) 90 (b) 31 (c) 41 (d) 19
  3. 3.Which number is the odd one out: 57, 97, 73, 83? (a) 57 (b) 97 (c) 73 (d) 83
  4. 4.Which number is the odd one out: 94, 31, 3, 93? (a) 94 (b) 31 (c) 3 (d) 93
  5. 5.Which number is the odd one out: 92, 31, 37, 17? (a) 92 (b) 31 (c) 37 (d) 17
  6. 6.Which number is the odd one out: 48, 18, 13, 72? (a) 48 (b) 18 (c) 13 (d) 72
  7. 7.Which number is the odd one out: 50, 71, 89, 29? (a) 50 (b) 71 (c) 89 (d) 29
  8. 8.Which number is the odd one out: 37, 73, 63, 41? (a) 37 (b) 73 (c) 63 (d) 41
  9. 9.Which number is the odd one out: 4, 48, 96, 24? (a) 4 (b) 48 (c) 96 (d) 24
  10. 10.Which number is the odd one out: 88, 8, 66, 76? (a) 88 (b) 8 (c) 66 (d) 76
  11. 11.Which number is the odd one out: 89, 96, 19, 31? (a) 89 (b) 96 (c) 19 (d) 31
  12. 12.Which number is the odd one out: 31, 23, 24, 93? (a) 31 (b) 23 (c) 24 (d) 93
  13. 13.Which number is the odd one out: 23, 89, 70, 83? (a) 23 (b) 89 (c) 70 (d) 83
  14. 14.Which number is the odd one out: 3, 9, 83, 71? (a) 3 (b) 9 (c) 83 (d) 71
  15. 15.Which number is the odd one out: 12, 23, 83, 57? (a) 12 (b) 23 (c) 83 (d) 57
  16. 16.Which number is the odd one out: 59, 60, 23, 73? (a) 59 (b) 60 (c) 23 (d) 73
  17. 17.Which number is the odd one out: 61, 5, 55, 71? (a) 61 (b) 5 (c) 55 (d) 71
  18. 18.Which number is the odd one out: 50, 11, 5, 31? (a) 50 (b) 11 (c) 5 (d) 31
  19. 19.Which number is the odd one out: 16, 65, 80, 55? (a) 16 (b) 65 (c) 80 (d) 55
  20. 20.Which number is the odd one out: 11, 89, 38, 67? (a) 11 (b) 89 (c) 38 (d) 67
  21. 21.Which number is the odd one out: 43, 83, 32, 13? (a) 43 (b) 83 (c) 32 (d) 13
  22. 22.Which number is the odd one out: 65, 60, 97, 53? (a) 65 (b) 60 (c) 97 (d) 53
  23. 23.Which number is the odd one out: 61, 2, 70, 11? (a) 61 (b) 2 (c) 70 (d) 11
  24. 24.Which number is the odd one out: 88, 67, 37, 17? (a) 88 (b) 67 (c) 37 (d) 17
  25. 25.Which number is the odd one out: 18, 59, 29, 3? (a) 18 (b) 59 (c) 29 (d) 3
  26. 26.Which number is the odd one out: 97, 61, 67, 12? (a) 97 (b) 61 (c) 67 (d) 12
  27. 27.Which number is the odd one out: 67, 36, 79, 83? (a) 67 (b) 36 (c) 79 (d) 83
  28. 28.Which number is the odd one out: 23, 38, 31, 11? (a) 23 (b) 38 (c) 31 (d) 11
  29. 29.Which number is the odd one out: 17, 2, 29, 88? (a) 17 (b) 2 (c) 29 (d) 88
  30. 30.Which number is the odd one out: 48, 91, 24, 8? (a) 48 (b) 91 (c) 24 (d) 8
  31. 31.Which number is the odd one out: 79, 83, 13, 49? (a) 79 (b) 83 (c) 13 (d) 49
  32. 32.Which number is the odd one out: 11, 97, 83, 36? (a) 11 (b) 97 (c) 83 (d) 36
  33. 33.Which number is the odd one out: 94, 29, 67, 41? (a) 94 (b) 29 (c) 67 (d) 41
  34. 34.Which number is the odd one out: 31, 41, 13, 96? (a) 31 (b) 41 (c) 13 (d) 96
  35. 35.Which number is the odd one out: 8, 74, 88, 32? (a) 8 (b) 74 (c) 88 (d) 32
  36. 36.Which number is the odd one out: 18, 13, 31, 79? (a) 18 (b) 13 (c) 31 (d) 79
  37. 37.Which number is the odd one out: 57, 23, 41, 36? (a) 57 (b) 23 (c) 41 (d) 36
  38. 38.Which number is the odd one out: 67, 47, 38, 17? (a) 67 (b) 47 (c) 38 (d) 17
  39. 39.Which number is the odd one out: 19, 66, 13, 53? (a) 19 (b) 66 (c) 13 (d) 53
  40. 40.Which number is the odd one out: 29, 11, 48, 73? (a) 29 (b) 11 (c) 48 (d) 73

Answer key

  1. 90
  2. 90
  3. 57
  4. 94
  5. 92
  6. 13
  7. 50
  8. 63
  9. 4
  10. 66
  11. 96
  12. 24
  13. 70
  14. 9
  15. 12
  16. 60
  17. 55
  18. 50
  19. 16
  20. 38
  21. 32
  22. 60
  23. 70
  24. 88
  25. 18
  26. 12
  27. 36
  28. 38
  29. 88
  30. 91
  31. 49
  32. 36
  33. 94
  34. 96
  35. 74
  36. 18
  37. 36
  38. 38
  39. 66
  40. 48

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