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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 112 · 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: 99, 89, 18, 54? (a) 99 (b) 89 (c) 18 (d) 54
  2. 2.Which number is the odd one out: 34, 67, 11, 13? (a) 34 (b) 67 (c) 11 (d) 13
  3. 3.Which number is the odd one out: 11, 19, 37, 96? (a) 11 (b) 19 (c) 37 (d) 96
  4. 4.Which number is the odd one out: 61, 34, 2, 37? (a) 61 (b) 34 (c) 2 (d) 37
  5. 5.Which number is the odd one out: 6, 51, 31, 23? (a) 6 (b) 51 (c) 31 (d) 23
  6. 6.Which number is the odd one out: 36, 90, 64, 16? (a) 36 (b) 90 (c) 64 (d) 16
  7. 7.Which number is the odd one out: 5, 72, 54, 48? (a) 5 (b) 72 (c) 54 (d) 48
  8. 8.Which number is the odd one out: 51, 65, 9, 81? (a) 51 (b) 65 (c) 9 (d) 81
  9. 9.Which number is the odd one out: 41, 7, 49, 31? (a) 41 (b) 7 (c) 49 (d) 31
  10. 10.Which number is the odd one out: 13, 73, 32, 31? (a) 13 (b) 73 (c) 32 (d) 31
  11. 11.Which number is the odd one out: 41, 71, 97, 28? (a) 41 (b) 71 (c) 97 (d) 28
  12. 12.Which number is the odd one out: 10, 66, 6, 78? (a) 10 (b) 66 (c) 6 (d) 78
  13. 13.Which number is the odd one out: 11, 41, 44, 29? (a) 11 (b) 41 (c) 44 (d) 29
  14. 14.Which number is the odd one out: 6, 18, 27, 99? (a) 6 (b) 18 (c) 27 (d) 99
  15. 15.Which number is the odd one out: 13, 47, 17, 58? (a) 13 (b) 47 (c) 17 (d) 58
  16. 16.Which number is the odd one out: 11, 53, 98, 23? (a) 11 (b) 53 (c) 98 (d) 23
  17. 17.Which number is the odd one out: 53, 70, 67, 73? (a) 53 (b) 70 (c) 67 (d) 73
  18. 18.Which number is the odd one out: 66, 2, 29, 19? (a) 66 (b) 2 (c) 29 (d) 19
  19. 19.Which number is the odd one out: 73, 66, 89, 19? (a) 73 (b) 66 (c) 89 (d) 19
  20. 20.Which number is the odd one out: 6, 66, 78, 22? (a) 6 (b) 66 (c) 78 (d) 22
  21. 21.Which number is the odd one out: 11, 29, 87, 59? (a) 11 (b) 29 (c) 87 (d) 59
  22. 22.Which number is the odd one out: 30, 37, 47, 71? (a) 30 (b) 37 (c) 47 (d) 71
  23. 23.Which number is the odd one out: 65, 85, 23, 55? (a) 65 (b) 85 (c) 23 (d) 55
  24. 24.Which number is the odd one out: 15, 29, 3, 43? (a) 15 (b) 29 (c) 3 (d) 43
  25. 25.Which number is the odd one out: 47, 67, 85, 30? (a) 47 (b) 67 (c) 85 (d) 30
  26. 26.Which number is the odd one out: 48, 54, 40, 80? (a) 48 (b) 54 (c) 40 (d) 80
  27. 27.Which number is the odd one out: 24, 59, 41, 19? (a) 24 (b) 59 (c) 41 (d) 19
  28. 28.Which number is the odd one out: 8, 40, 80, 54? (a) 8 (b) 40 (c) 80 (d) 54
  29. 29.Which number is the odd one out: 24, 15, 6, 48? (a) 24 (b) 15 (c) 6 (d) 48
  30. 30.Which number is the odd one out: 19, 17, 27, 41? (a) 19 (b) 17 (c) 27 (d) 41
  31. 31.Which number is the odd one out: 11, 47, 19, 94? (a) 11 (b) 47 (c) 19 (d) 94
  32. 32.Which number is the odd one out: 56, 77, 4, 16? (a) 56 (b) 77 (c) 4 (d) 16
  33. 33.Which number is the odd one out: 37, 31, 67, 66? (a) 37 (b) 31 (c) 67 (d) 66
  34. 34.Which number is the odd one out: 24, 49, 22, 48? (a) 24 (b) 49 (c) 22 (d) 48
  35. 35.Which number is the odd one out: 33, 97, 47, 67? (a) 33 (b) 97 (c) 47 (d) 67
  36. 36.Which number is the odd one out: 47, 23, 72, 59? (a) 47 (b) 23 (c) 72 (d) 59
  37. 37.Which number is the odd one out: 73, 89, 16, 53? (a) 73 (b) 89 (c) 16 (d) 53
  38. 38.Which number is the odd one out: 13, 28, 83, 31? (a) 13 (b) 28 (c) 83 (d) 31
  39. 39.Which number is the odd one out: 40, 80, 88, 61? (a) 40 (b) 80 (c) 88 (d) 61
  40. 40.Which number is the odd one out: 73, 32, 96, 48? (a) 73 (b) 32 (c) 96 (d) 48

Answer key

  1. 89
  2. 34
  3. 96
  4. 34
  5. 6
  6. 90
  7. 5
  8. 65
  9. 49
  10. 32
  11. 28
  12. 10
  13. 44
  14. 6
  15. 58
  16. 98
  17. 70
  18. 66
  19. 66
  20. 22
  21. 87
  22. 30
  23. 23
  24. 15
  25. 30
  26. 54
  27. 24
  28. 54
  29. 15
  30. 27
  31. 94
  32. 77
  33. 66
  34. 49
  35. 33
  36. 72
  37. 16
  38. 28
  39. 61
  40. 73

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