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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 813 · 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, 56, 9, 81? (a) 63 (b) 56 (c) 9 (d) 81
  2. 2.Which number is the odd one out: 55, 71, 53, 19? (a) 55 (b) 71 (c) 53 (d) 19
  3. 3.Which number is the odd one out: 97, 43, 41, 15? (a) 97 (b) 43 (c) 41 (d) 15
  4. 4.Which number is the odd one out: 19, 30, 71, 53? (a) 19 (b) 30 (c) 71 (d) 53
  5. 5.Which number is the odd one out: 22, 44, 35, 92? (a) 22 (b) 44 (c) 35 (d) 92
  6. 6.Which number is the odd one out: 65, 45, 36, 85? (a) 65 (b) 45 (c) 36 (d) 85
  7. 7.Which number is the odd one out: 29, 3, 23, 57? (a) 29 (b) 3 (c) 23 (d) 57
  8. 8.Which number is the odd one out: 47, 17, 18, 11? (a) 47 (b) 17 (c) 18 (d) 11
  9. 9.Which number is the odd one out: 42, 19, 61, 11? (a) 42 (b) 19 (c) 61 (d) 11
  10. 10.Which number is the odd one out: 11, 83, 89, 8? (a) 11 (b) 83 (c) 89 (d) 8
  11. 11.Which number is the odd one out: 33, 19, 31, 71? (a) 33 (b) 19 (c) 31 (d) 71
  12. 12.Which number is the odd one out: 80, 35, 77, 14? (a) 80 (b) 35 (c) 77 (d) 14
  13. 13.Which number is the odd one out: 77, 91, 21, 87? (a) 77 (b) 91 (c) 21 (d) 87
  14. 14.Which number is the odd one out: 89, 57, 48, 79? (a) 89 (b) 57 (c) 48 (d) 79
  15. 15.Which number is the odd one out: 11, 53, 58, 2? (a) 11 (b) 53 (c) 58 (d) 2
  16. 16.Which number is the odd one out: 77, 37, 82, 7? (a) 77 (b) 37 (c) 82 (d) 7
  17. 17.Which number is the odd one out: 11, 85, 67, 71? (a) 11 (b) 85 (c) 67 (d) 71
  18. 18.Which number is the odd one out: 5, 18, 99, 54? (a) 5 (b) 18 (c) 99 (d) 54
  19. 19.Which number is the odd one out: 29, 31, 5, 70? (a) 29 (b) 31 (c) 5 (d) 70
  20. 20.Which number is the odd one out: 31, 29, 88, 2? (a) 31 (b) 29 (c) 88 (d) 2
  21. 21.Which number is the odd one out: 24, 17, 96, 6? (a) 24 (b) 17 (c) 96 (d) 6
  22. 22.Which number is the odd one out: 25, 31, 37, 19? (a) 25 (b) 31 (c) 37 (d) 19
  23. 23.Which number is the odd one out: 53, 29, 66, 61? (a) 53 (b) 29 (c) 66 (d) 61
  24. 24.Which number is the odd one out: 6, 85, 95, 15? (a) 6 (b) 85 (c) 95 (d) 15
  25. 25.Which number is the odd one out: 85, 16, 15, 75? (a) 85 (b) 16 (c) 15 (d) 75
  26. 26.Which number is the odd one out: 43, 3, 37, 24? (a) 43 (b) 3 (c) 37 (d) 24
  27. 27.Which number is the odd one out: 13, 11, 16, 53? (a) 13 (b) 11 (c) 16 (d) 53
  28. 28.Which number is the odd one out: 37, 41, 79, 85? (a) 37 (b) 41 (c) 79 (d) 85
  29. 29.Which number is the odd one out: 92, 17, 83, 23? (a) 92 (b) 17 (c) 83 (d) 23
  30. 30.Which number is the odd one out: 92, 48, 24, 85? (a) 92 (b) 48 (c) 24 (d) 85
  31. 31.Which number is the odd one out: 7, 63, 89, 71? (a) 7 (b) 63 (c) 89 (d) 71
  32. 32.Which number is the odd one out: 17, 73, 83, 30? (a) 17 (b) 73 (c) 83 (d) 30
  33. 33.Which number is the odd one out: 24, 18, 72, 34? (a) 24 (b) 18 (c) 72 (d) 34
  34. 34.Which number is the odd one out: 32, 83, 11, 2? (a) 32 (b) 83 (c) 11 (d) 2
  35. 35.Which number is the odd one out: 34, 23, 11, 53? (a) 34 (b) 23 (c) 11 (d) 53
  36. 36.Which number is the odd one out: 65, 23, 47, 40? (a) 65 (b) 23 (c) 47 (d) 40
  37. 37.Which number is the odd one out: 44, 88, 64, 16? (a) 44 (b) 88 (c) 64 (d) 16
  38. 38.Which number is the odd one out: 39, 23, 12, 13? (a) 39 (b) 23 (c) 12 (d) 13
  39. 39.Which number is the odd one out: 72, 7, 96, 18? (a) 72 (b) 7 (c) 96 (d) 18
  40. 40.Which number is the odd one out: 54, 99, 60, 45? (a) 54 (b) 99 (c) 60 (d) 45

Answer key

  1. 56
  2. 55
  3. 15
  4. 30
  5. 35
  6. 36
  7. 57
  8. 18
  9. 42
  10. 8
  11. 33
  12. 80
  13. 87
  14. 48
  15. 58
  16. 82
  17. 85
  18. 5
  19. 70
  20. 88
  21. 17
  22. 25
  23. 66
  24. 6
  25. 16
  26. 24
  27. 16
  28. 85
  29. 92
  30. 85
  31. 63
  32. 30
  33. 34
  34. 32
  35. 34
  36. 40
  37. 44
  38. 12
  39. 7
  40. 60

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