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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 395 · 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: 63, 89, 79, 29? (a) 63 (b) 89 (c) 79 (d) 29
  2. 2.Which number is the odd one out: 9, 19, 73, 17? (a) 9 (b) 19 (c) 73 (d) 17
  3. 3.Which number is the odd one out: 96, 27, 48, 72? (a) 96 (b) 27 (c) 48 (d) 72
  4. 4.Which number is the odd one out: 66, 6, 33, 23? (a) 66 (b) 6 (c) 33 (d) 23
  5. 5.Which number is the odd one out: 68, 11, 8, 32? (a) 68 (b) 11 (c) 8 (d) 32
  6. 6.Which number is the odd one out: 57, 17, 61, 53? (a) 57 (b) 17 (c) 61 (d) 53
  7. 7.Which number is the odd one out: 43, 46, 23, 19? (a) 43 (b) 46 (c) 23 (d) 19
  8. 8.Which number is the odd one out: 31, 53, 11, 15? (a) 31 (b) 53 (c) 11 (d) 15
  9. 9.Which number is the odd one out: 17, 41, 31, 16? (a) 17 (b) 41 (c) 31 (d) 16
  10. 10.Which number is the odd one out: 37, 43, 38, 47? (a) 37 (b) 43 (c) 38 (d) 47
  11. 11.Which number is the odd one out: 28, 7, 43, 11? (a) 28 (b) 7 (c) 43 (d) 11
  12. 12.Which number is the odd one out: 13, 46, 73, 11? (a) 13 (b) 46 (c) 73 (d) 11
  13. 13.Which number is the odd one out: 73, 11, 2, 74? (a) 73 (b) 11 (c) 2 (d) 74
  14. 14.Which number is the odd one out: 61, 70, 97, 53? (a) 61 (b) 70 (c) 97 (d) 53
  15. 15.Which number is the odd one out: 19, 23, 97, 78? (a) 19 (b) 23 (c) 97 (d) 78
  16. 16.Which number is the odd one out: 63, 9, 49, 27? (a) 63 (b) 9 (c) 49 (d) 27
  17. 17.Which number is the odd one out: 29, 89, 19, 57? (a) 29 (b) 89 (c) 19 (d) 57
  18. 18.Which number is the odd one out: 17, 37, 96, 67? (a) 17 (b) 37 (c) 96 (d) 67
  19. 19.Which number is the odd one out: 47, 11, 41, 75? (a) 47 (b) 11 (c) 41 (d) 75
  20. 20.Which number is the odd one out: 48, 96, 88, 5? (a) 48 (b) 96 (c) 88 (d) 5
  21. 21.Which number is the odd one out: 61, 3, 66, 83? (a) 61 (b) 3 (c) 66 (d) 83
  22. 22.Which number is the odd one out: 79, 73, 8, 71? (a) 79 (b) 73 (c) 8 (d) 71
  23. 23.Which number is the odd one out: 23, 43, 82, 79? (a) 23 (b) 43 (c) 82 (d) 79
  24. 24.Which number is the odd one out: 31, 95, 11, 83? (a) 31 (b) 95 (c) 11 (d) 83
  25. 25.Which number is the odd one out: 67, 70, 85, 47? (a) 67 (b) 70 (c) 85 (d) 47
  26. 26.Which number is the odd one out: 31, 53, 27, 73? (a) 31 (b) 53 (c) 27 (d) 73
  27. 27.Which number is the odd one out: 31, 89, 42, 19? (a) 31 (b) 89 (c) 42 (d) 19
  28. 28.Which number is the odd one out: 64, 97, 47, 59? (a) 64 (b) 97 (c) 47 (d) 59
  29. 29.Which number is the odd one out: 61, 79, 96, 19? (a) 61 (b) 79 (c) 96 (d) 19
  30. 30.Which number is the odd one out: 84, 12, 43, 42? (a) 84 (b) 12 (c) 43 (d) 42
  31. 31.Which number is the odd one out: 3, 90, 54, 45? (a) 3 (b) 90 (c) 54 (d) 45
  32. 32.Which number is the odd one out: 48, 32, 24, 65? (a) 48 (b) 32 (c) 24 (d) 65
  33. 33.Which number is the odd one out: 23, 37, 9, 41? (a) 23 (b) 37 (c) 9 (d) 41
  34. 34.Which number is the odd one out: 47, 25, 59, 67? (a) 47 (b) 25 (c) 59 (d) 67
  35. 35.Which number is the odd one out: 67, 11, 2, 31? (a) 67 (b) 11 (c) 2 (d) 31
  36. 36.Which number is the odd one out: 72, 59, 37, 3? (a) 72 (b) 59 (c) 37 (d) 3
  37. 37.Which number is the odd one out: 41, 97, 63, 83? (a) 41 (b) 97 (c) 63 (d) 83
  38. 38.Which number is the odd one out: 46, 53, 37, 2? (a) 46 (b) 53 (c) 37 (d) 2
  39. 39.Which number is the odd one out: 11, 17, 64, 47? (a) 11 (b) 17 (c) 64 (d) 47
  40. 40.Which number is the odd one out: 2, 13, 83, 44? (a) 2 (b) 13 (c) 83 (d) 44

Answer key

  1. 63
  2. 9
  3. 27
  4. 23
  5. 11
  6. 57
  7. 46
  8. 15
  9. 16
  10. 38
  11. 28
  12. 46
  13. 74
  14. 70
  15. 78
  16. 49
  17. 57
  18. 96
  19. 75
  20. 5
  21. 66
  22. 8
  23. 82
  24. 95
  25. 70
  26. 27
  27. 42
  28. 64
  29. 96
  30. 43
  31. 3
  32. 65
  33. 9
  34. 25
  35. 2
  36. 72
  37. 63
  38. 46
  39. 64
  40. 44

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