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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 655 · 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: 29, 41, 37, 34? (a) 29 (b) 41 (c) 37 (d) 34
  2. 2.Which number is the odd one out: 65, 54, 6, 90? (a) 65 (b) 54 (c) 6 (d) 90
  3. 3.Which number is the odd one out: 81, 6, 27, 9? (a) 81 (b) 6 (c) 27 (d) 9
  4. 4.Which number is the odd one out: 2, 29, 41, 76? (a) 2 (b) 29 (c) 41 (d) 76
  5. 5.Which number is the odd one out: 67, 3, 30, 29? (a) 67 (b) 3 (c) 30 (d) 29
  6. 6.Which number is the odd one out: 38, 15, 27, 45? (a) 38 (b) 15 (c) 27 (d) 45
  7. 7.Which number is the odd one out: 21, 97, 23, 11? (a) 21 (b) 97 (c) 23 (d) 11
  8. 8.Which number is the odd one out: 95, 59, 47, 43? (a) 95 (b) 59 (c) 47 (d) 43
  9. 9.Which number is the odd one out: 33, 57, 69, 35? (a) 33 (b) 57 (c) 69 (d) 35
  10. 10.Which number is the odd one out: 53, 29, 2, 41? (a) 53 (b) 29 (c) 2 (d) 41
  11. 11.Which number is the odd one out: 4, 67, 83, 47? (a) 4 (b) 67 (c) 83 (d) 47
  12. 12.Which number is the odd one out: 50, 47, 83, 29? (a) 50 (b) 47 (c) 83 (d) 29
  13. 13.Which number is the odd one out: 48, 53, 83, 73? (a) 48 (b) 53 (c) 83 (d) 73
  14. 14.Which number is the odd one out: 11, 73, 7, 35? (a) 11 (b) 73 (c) 7 (d) 35
  15. 15.Which number is the odd one out: 83, 47, 90, 19? (a) 83 (b) 47 (c) 90 (d) 19
  16. 16.Which number is the odd one out: 6, 46, 48, 24? (a) 6 (b) 46 (c) 48 (d) 24
  17. 17.Which number is the odd one out: 43, 23, 11, 91? (a) 43 (b) 23 (c) 11 (d) 91
  18. 18.Which number is the odd one out: 67, 81, 99, 9? (a) 67 (b) 81 (c) 99 (d) 9
  19. 19.Which number is the odd one out: 89, 73, 86, 19? (a) 89 (b) 73 (c) 86 (d) 19
  20. 20.Which number is the odd one out: 19, 83, 32, 11? (a) 19 (b) 83 (c) 32 (d) 11
  21. 21.Which number is the odd one out: 53, 47, 22, 79? (a) 53 (b) 47 (c) 22 (d) 79
  22. 22.Which number is the odd one out: 97, 67, 72, 47? (a) 97 (b) 67 (c) 72 (d) 47
  23. 23.Which number is the odd one out: 3, 36, 37, 67? (a) 3 (b) 36 (c) 37 (d) 67
  24. 24.Which number is the odd one out: 31, 30, 13, 37? (a) 31 (b) 30 (c) 13 (d) 37
  25. 25.Which number is the odd one out: 59, 91, 7, 54? (a) 59 (b) 91 (c) 7 (d) 54
  26. 26.Which number is the odd one out: 70, 73, 29, 43? (a) 70 (b) 73 (c) 29 (d) 43
  27. 27.Which number is the odd one out: 43, 79, 18, 31? (a) 43 (b) 79 (c) 18 (d) 31
  28. 28.Which number is the odd one out: 55, 65, 85, 78? (a) 55 (b) 65 (c) 85 (d) 78
  29. 29.Which number is the odd one out: 55, 29, 79, 23? (a) 55 (b) 29 (c) 79 (d) 23
  30. 30.Which number is the odd one out: 85, 31, 71, 41? (a) 85 (b) 31 (c) 71 (d) 41
  31. 31.Which number is the odd one out: 88, 32, 12, 24? (a) 88 (b) 32 (c) 12 (d) 24
  32. 32.Which number is the odd one out: 88, 84, 96, 56? (a) 88 (b) 84 (c) 96 (d) 56
  33. 33.Which number is the odd one out: 32, 11, 2, 17? (a) 32 (b) 11 (c) 2 (d) 17
  34. 34.Which number is the odd one out: 17, 45, 19, 11? (a) 17 (b) 45 (c) 19 (d) 11
  35. 35.Which number is the odd one out: 61, 3, 38, 93? (a) 61 (b) 3 (c) 38 (d) 93
  36. 36.Which number is the odd one out: 11, 31, 65, 37? (a) 11 (b) 31 (c) 65 (d) 37
  37. 37.Which number is the odd one out: 15, 41, 53, 29? (a) 15 (b) 41 (c) 53 (d) 29
  38. 38.Which number is the odd one out: 17, 37, 32, 19? (a) 17 (b) 37 (c) 32 (d) 19
  39. 39.Which number is the odd one out: 41, 47, 19, 42? (a) 41 (b) 47 (c) 19 (d) 42
  40. 40.Which number is the odd one out: 9, 4, 76, 81? (a) 9 (b) 4 (c) 76 (d) 81

Answer key

  1. 34
  2. 65
  3. 6
  4. 76
  5. 30
  6. 38
  7. 21
  8. 95
  9. 35
  10. 2
  11. 4
  12. 50
  13. 48
  14. 35
  15. 90
  16. 46
  17. 91
  18. 67
  19. 86
  20. 32
  21. 22
  22. 72
  23. 36
  24. 30
  25. 54
  26. 70
  27. 18
  28. 78
  29. 55
  30. 85
  31. 12
  32. 84
  33. 32
  34. 45
  35. 38
  36. 65
  37. 15
  38. 32
  39. 42
  40. 76

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