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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 114 · 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: 66, 64, 24, 78? (a) 66 (b) 64 (c) 24 (d) 78
  2. 2.Which number is the odd one out: 50, 21, 10, 38? (a) 50 (b) 21 (c) 10 (d) 38
  3. 3.Which number is the odd one out: 29, 6, 89, 3? (a) 29 (b) 6 (c) 89 (d) 3
  4. 4.Which number is the odd one out: 3, 97, 53, 27? (a) 3 (b) 97 (c) 53 (d) 27
  5. 5.Which number is the odd one out: 61, 48, 29, 79? (a) 61 (b) 48 (c) 29 (d) 79
  6. 6.Which number is the odd one out: 37, 56, 2, 41? (a) 37 (b) 56 (c) 2 (d) 41
  7. 7.Which number is the odd one out: 7, 13, 77, 19? (a) 7 (b) 13 (c) 77 (d) 19
  8. 8.Which number is the odd one out: 99, 90, 31, 47? (a) 99 (b) 90 (c) 31 (d) 47
  9. 9.Which number is the odd one out: 53, 31, 54, 47? (a) 53 (b) 31 (c) 54 (d) 47
  10. 10.Which number is the odd one out: 53, 47, 38, 67? (a) 53 (b) 47 (c) 38 (d) 67
  11. 11.Which number is the odd one out: 17, 5, 35, 53? (a) 17 (b) 5 (c) 35 (d) 53
  12. 12.Which number is the odd one out: 19, 95, 5, 55? (a) 19 (b) 95 (c) 5 (d) 55
  13. 13.Which number is the odd one out: 40, 6, 78, 12? (a) 40 (b) 6 (c) 78 (d) 12
  14. 14.Which number is the odd one out: 59, 71, 48, 43? (a) 59 (b) 71 (c) 48 (d) 43
  15. 15.Which number is the odd one out: 13, 67, 82, 31? (a) 13 (b) 67 (c) 82 (d) 31
  16. 16.Which number is the odd one out: 48, 96, 8, 65? (a) 48 (b) 96 (c) 8 (d) 65
  17. 17.Which number is the odd one out: 77, 85, 55, 95? (a) 77 (b) 85 (c) 55 (d) 95
  18. 18.Which number is the odd one out: 53, 13, 84, 7? (a) 53 (b) 13 (c) 84 (d) 7
  19. 19.Which number is the odd one out: 44, 27, 99, 69? (a) 44 (b) 27 (c) 99 (d) 69
  20. 20.Which number is the odd one out: 73, 17, 79, 44? (a) 73 (b) 17 (c) 79 (d) 44
  21. 21.Which number is the odd one out: 31, 19, 33, 41? (a) 31 (b) 19 (c) 33 (d) 41
  22. 22.Which number is the odd one out: 45, 8, 88, 50? (a) 45 (b) 8 (c) 88 (d) 50
  23. 23.Which number is the odd one out: 29, 19, 73, 42? (a) 29 (b) 19 (c) 73 (d) 42
  24. 24.Which number is the odd one out: 2, 67, 61, 94? (a) 2 (b) 67 (c) 61 (d) 94
  25. 25.Which number is the odd one out: 95, 67, 60, 79? (a) 95 (b) 67 (c) 60 (d) 79
  26. 26.Which number is the odd one out: 13, 71, 70, 53? (a) 13 (b) 71 (c) 70 (d) 53
  27. 27.Which number is the odd one out: 13, 29, 31, 57? (a) 13 (b) 29 (c) 31 (d) 57
  28. 28.Which number is the odd one out: 66, 23, 11, 59? (a) 66 (b) 23 (c) 11 (d) 59
  29. 29.Which number is the odd one out: 5, 83, 75, 31? (a) 5 (b) 83 (c) 75 (d) 31
  30. 30.Which number is the odd one out: 29, 61, 66, 19? (a) 29 (b) 61 (c) 66 (d) 19
  31. 31.Which number is the odd one out: 97, 31, 84, 47? (a) 97 (b) 31 (c) 84 (d) 47
  32. 32.Which number is the odd one out: 57, 18, 30, 90? (a) 57 (b) 18 (c) 30 (d) 90
  33. 33.Which number is the odd one out: 50, 61, 10, 65? (a) 50 (b) 61 (c) 10 (d) 65
  34. 34.Which number is the odd one out: 53, 79, 54, 13? (a) 53 (b) 79 (c) 54 (d) 13
  35. 35.Which number is the odd one out: 47, 26, 17, 31? (a) 47 (b) 26 (c) 17 (d) 31
  36. 36.Which number is the odd one out: 18, 71, 53, 61? (a) 18 (b) 71 (c) 53 (d) 61
  37. 37.Which number is the odd one out: 61, 50, 79, 53? (a) 61 (b) 50 (c) 79 (d) 53
  38. 38.Which number is the odd one out: 28, 61, 17, 59? (a) 28 (b) 61 (c) 17 (d) 59
  39. 39.Which number is the odd one out: 64, 10, 4, 16? (a) 64 (b) 10 (c) 4 (d) 16
  40. 40.Which number is the odd one out: 89, 78, 53, 13? (a) 89 (b) 78 (c) 53 (d) 13

Answer key

  1. 64
  2. 21
  3. 6
  4. 27
  5. 48
  6. 56
  7. 77
  8. 90
  9. 54
  10. 38
  11. 35
  12. 19
  13. 40
  14. 48
  15. 82
  16. 65
  17. 77
  18. 84
  19. 44
  20. 44
  21. 33
  22. 45
  23. 42
  24. 94
  25. 60
  26. 70
  27. 57
  28. 66
  29. 75
  30. 66
  31. 84
  32. 57
  33. 61
  34. 54
  35. 26
  36. 18
  37. 50
  38. 28
  39. 10
  40. 78

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