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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 338 · 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: 31, 19, 49, 43? (a) 31 (b) 19 (c) 49 (d) 43
  2. 2.Which number is the odd one out: 13, 41, 82, 31? (a) 13 (b) 41 (c) 82 (d) 31
  3. 3.Which number is the odd one out: 97, 17, 61, 39? (a) 97 (b) 17 (c) 61 (d) 39
  4. 4.Which number is the odd one out: 89, 12, 48, 24? (a) 89 (b) 12 (c) 48 (d) 24
  5. 5.Which number is the odd one out: 6, 85, 12, 60? (a) 6 (b) 85 (c) 12 (d) 60
  6. 6.Which number is the odd one out: 61, 59, 9, 29? (a) 61 (b) 59 (c) 9 (d) 29
  7. 7.Which number is the odd one out: 53, 31, 11, 52? (a) 53 (b) 31 (c) 11 (d) 52
  8. 8.Which number is the odd one out: 71, 95, 89, 53? (a) 71 (b) 95 (c) 89 (d) 53
  9. 9.Which number is the odd one out: 7, 84, 11, 67? (a) 7 (b) 84 (c) 11 (d) 67
  10. 10.Which number is the odd one out: 45, 3, 43, 5? (a) 45 (b) 3 (c) 43 (d) 5
  11. 11.Which number is the odd one out: 31, 79, 19, 39? (a) 31 (b) 79 (c) 19 (d) 39
  12. 12.Which number is the odd one out: 89, 79, 47, 57? (a) 89 (b) 79 (c) 47 (d) 57
  13. 13.Which number is the odd one out: 63, 14, 90, 35? (a) 63 (b) 14 (c) 90 (d) 35
  14. 14.Which number is the odd one out: 31, 71, 30, 61? (a) 31 (b) 71 (c) 30 (d) 61
  15. 15.Which number is the odd one out: 96, 64, 60, 16? (a) 96 (b) 64 (c) 60 (d) 16
  16. 16.Which number is the odd one out: 29, 84, 89, 7? (a) 29 (b) 84 (c) 89 (d) 7
  17. 17.Which number is the odd one out: 65, 77, 14, 98? (a) 65 (b) 77 (c) 14 (d) 98
  18. 18.Which number is the odd one out: 23, 4, 83, 47? (a) 23 (b) 4 (c) 83 (d) 47
  19. 19.Which number is the odd one out: 85, 71, 13, 37? (a) 85 (b) 71 (c) 13 (d) 37
  20. 20.Which number is the odd one out: 42, 28, 23, 84? (a) 42 (b) 28 (c) 23 (d) 84
  21. 21.Which number is the odd one out: 26, 65, 8, 80? (a) 26 (b) 65 (c) 8 (d) 80
  22. 22.Which number is the odd one out: 20, 41, 71, 55? (a) 20 (b) 41 (c) 71 (d) 55
  23. 23.Which number is the odd one out: 31, 17, 59, 35? (a) 31 (b) 17 (c) 59 (d) 35
  24. 24.Which number is the odd one out: 31, 19, 84, 11? (a) 31 (b) 19 (c) 84 (d) 11
  25. 25.Which number is the odd one out: 4, 64, 16, 53? (a) 4 (b) 64 (c) 16 (d) 53
  26. 26.Which number is the odd one out: 47, 3, 33, 51? (a) 47 (b) 3 (c) 33 (d) 51
  27. 27.Which number is the odd one out: 67, 84, 57, 73? (a) 67 (b) 84 (c) 57 (d) 73
  28. 28.Which number is the odd one out: 32, 78, 92, 8? (a) 32 (b) 78 (c) 92 (d) 8
  29. 29.Which number is the odd one out: 23, 43, 41, 50? (a) 23 (b) 43 (c) 41 (d) 50
  30. 30.Which number is the odd one out: 8, 52, 16, 25? (a) 8 (b) 52 (c) 16 (d) 25
  31. 31.Which number is the odd one out: 47, 42, 67, 37? (a) 47 (b) 42 (c) 67 (d) 37
  32. 32.Which number is the odd one out: 99, 64, 87, 81? (a) 99 (b) 64 (c) 87 (d) 81
  33. 33.Which number is the odd one out: 82, 83, 61, 53? (a) 82 (b) 83 (c) 61 (d) 53
  34. 34.Which number is the odd one out: 66, 30, 70, 42? (a) 66 (b) 30 (c) 70 (d) 42
  35. 35.Which number is the odd one out: 21, 67, 56, 3? (a) 21 (b) 67 (c) 56 (d) 3
  36. 36.Which number is the odd one out: 14, 42, 30, 70? (a) 14 (b) 42 (c) 30 (d) 70
  37. 37.Which number is the odd one out: 16, 9, 56, 81? (a) 16 (b) 9 (c) 56 (d) 81
  38. 38.Which number is the odd one out: 71, 56, 29, 83? (a) 71 (b) 56 (c) 29 (d) 83
  39. 39.Which number is the odd one out: 29, 11, 70, 67? (a) 29 (b) 11 (c) 70 (d) 67
  40. 40.Which number is the odd one out: 93, 89, 37, 53? (a) 93 (b) 89 (c) 37 (d) 53

Answer key

  1. 49
  2. 82
  3. 39
  4. 89
  5. 85
  6. 9
  7. 52
  8. 95
  9. 84
  10. 45
  11. 39
  12. 57
  13. 90
  14. 30
  15. 60
  16. 84
  17. 65
  18. 4
  19. 85
  20. 23
  21. 65
  22. 20
  23. 35
  24. 84
  25. 53
  26. 47
  27. 84
  28. 78
  29. 50
  30. 25
  31. 42
  32. 64
  33. 82
  34. 70
  35. 56
  36. 30
  37. 56
  38. 56
  39. 70
  40. 93

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