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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 203 · 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, 52, 38, 44? (a) 63 (b) 52 (c) 38 (d) 44
  2. 2.Which number is the odd one out: 16, 5, 95, 41? (a) 16 (b) 5 (c) 95 (d) 41
  3. 3.Which number is the odd one out: 31, 43, 71, 68? (a) 31 (b) 43 (c) 71 (d) 68
  4. 4.Which number is the odd one out: 43, 4, 17, 71? (a) 43 (b) 4 (c) 17 (d) 71
  5. 5.Which number is the odd one out: 29, 39, 11, 79? (a) 29 (b) 39 (c) 11 (d) 79
  6. 6.Which number is the odd one out: 18, 27, 54, 17? (a) 18 (b) 27 (c) 54 (d) 17
  7. 7.Which number is the odd one out: 57, 17, 42, 79? (a) 57 (b) 17 (c) 42 (d) 79
  8. 8.Which number is the odd one out: 52, 79, 19, 83? (a) 52 (b) 79 (c) 19 (d) 83
  9. 9.Which number is the odd one out: 81, 49, 35, 9? (a) 81 (b) 49 (c) 35 (d) 9
  10. 10.Which number is the odd one out: 79, 48, 8, 24? (a) 79 (b) 48 (c) 8 (d) 24
  11. 11.Which number is the odd one out: 20, 29, 17, 83? (a) 20 (b) 29 (c) 17 (d) 83
  12. 12.Which number is the odd one out: 73, 15, 13, 71? (a) 73 (b) 15 (c) 13 (d) 71
  13. 13.Which number is the odd one out: 24, 35, 32, 48? (a) 24 (b) 35 (c) 32 (d) 48
  14. 14.Which number is the odd one out: 43, 29, 5, 15? (a) 43 (b) 29 (c) 5 (d) 15
  15. 15.Which number is the odd one out: 64, 53, 37, 61? (a) 64 (b) 53 (c) 37 (d) 61
  16. 16.Which number is the odd one out: 79, 5, 90, 41? (a) 79 (b) 5 (c) 90 (d) 41
  17. 17.Which number is the odd one out: 94, 34, 9, 46? (a) 94 (b) 34 (c) 9 (d) 46
  18. 18.Which number is the odd one out: 74, 73, 11, 19? (a) 74 (b) 73 (c) 11 (d) 19
  19. 19.Which number is the odd one out: 14, 7, 19, 98? (a) 14 (b) 7 (c) 19 (d) 98
  20. 20.Which number is the odd one out: 66, 24, 88, 43? (a) 66 (b) 24 (c) 88 (d) 43
  21. 21.Which number is the odd one out: 2, 80, 59, 73? (a) 2 (b) 80 (c) 59 (d) 73
  22. 22.Which number is the odd one out: 11, 15, 59, 61? (a) 11 (b) 15 (c) 59 (d) 61
  23. 23.Which number is the odd one out: 11, 5, 2, 80? (a) 11 (b) 5 (c) 2 (d) 80
  24. 24.Which number is the odd one out: 23, 13, 57, 11? (a) 23 (b) 13 (c) 57 (d) 11
  25. 25.Which number is the odd one out: 17, 39, 84, 67? (a) 17 (b) 39 (c) 84 (d) 67
  26. 26.Which number is the odd one out: 82, 52, 24, 96? (a) 82 (b) 52 (c) 24 (d) 96
  27. 27.Which number is the odd one out: 47, 13, 94, 19? (a) 47 (b) 13 (c) 94 (d) 19
  28. 28.Which number is the odd one out: 17, 79, 64, 83? (a) 17 (b) 79 (c) 64 (d) 83
  29. 29.Which number is the odd one out: 57, 83, 13, 3? (a) 57 (b) 83 (c) 13 (d) 3
  30. 30.Which number is the odd one out: 63, 31, 13, 7? (a) 63 (b) 31 (c) 13 (d) 7
  31. 31.Which number is the odd one out: 53, 90, 83, 19? (a) 53 (b) 90 (c) 83 (d) 19
  32. 32.Which number is the odd one out: 85, 16, 10, 25? (a) 85 (b) 16 (c) 10 (d) 25
  33. 33.Which number is the odd one out: 58, 89, 61, 11? (a) 58 (b) 89 (c) 61 (d) 11
  34. 34.Which number is the odd one out: 71, 11, 10, 29? (a) 71 (b) 11 (c) 10 (d) 29
  35. 35.Which number is the odd one out: 55, 95, 64, 40? (a) 55 (b) 95 (c) 64 (d) 40
  36. 36.Which number is the odd one out: 14, 79, 61, 83? (a) 14 (b) 79 (c) 61 (d) 83
  37. 37.Which number is the odd one out: 11, 24, 13, 47? (a) 11 (b) 24 (c) 13 (d) 47
  38. 38.Which number is the odd one out: 65, 80, 79, 29? (a) 65 (b) 80 (c) 79 (d) 29
  39. 39.Which number is the odd one out: 22, 48, 32, 96? (a) 22 (b) 48 (c) 32 (d) 96
  40. 40.Which number is the odd one out: 54, 23, 3, 11? (a) 54 (b) 23 (c) 3 (d) 11

Answer key

  1. 63
  2. 16
  3. 68
  4. 4
  5. 39
  6. 17
  7. 42
  8. 52
  9. 35
  10. 79
  11. 20
  12. 15
  13. 35
  14. 15
  15. 64
  16. 90
  17. 9
  18. 74
  19. 19
  20. 43
  21. 80
  22. 15
  23. 80
  24. 57
  25. 84
  26. 82
  27. 94
  28. 64
  29. 57
  30. 63
  31. 90
  32. 16
  33. 58
  34. 10
  35. 64
  36. 14
  37. 24
  38. 80
  39. 22
  40. 54

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