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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 556 · 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: 64, 89, 16, 32? (a) 64 (b) 89 (c) 16 (d) 32
  2. 2.Which number is the odd one out: 80, 40, 32, 17? (a) 80 (b) 40 (c) 32 (d) 17
  3. 3.Which number is the odd one out: 17, 31, 82, 67? (a) 17 (b) 31 (c) 82 (d) 67
  4. 4.Which number is the odd one out: 37, 10, 53, 11? (a) 37 (b) 10 (c) 53 (d) 11
  5. 5.Which number is the odd one out: 79, 13, 47, 57? (a) 79 (b) 13 (c) 47 (d) 57
  6. 6.Which number is the odd one out: 87, 69, 28, 51? (a) 87 (b) 69 (c) 28 (d) 51
  7. 7.Which number is the odd one out: 86, 41, 17, 31? (a) 86 (b) 41 (c) 17 (d) 31
  8. 8.Which number is the odd one out: 31, 97, 45, 3? (a) 31 (b) 97 (c) 45 (d) 3
  9. 9.Which number is the odd one out: 96, 35, 8, 48? (a) 96 (b) 35 (c) 8 (d) 48
  10. 10.Which number is the odd one out: 32, 4, 16, 7? (a) 32 (b) 4 (c) 16 (d) 7
  11. 11.Which number is the odd one out: 47, 17, 66, 2? (a) 47 (b) 17 (c) 66 (d) 2
  12. 12.Which number is the odd one out: 97, 34, 17, 19? (a) 97 (b) 34 (c) 17 (d) 19
  13. 13.Which number is the odd one out: 18, 80, 96, 54? (a) 18 (b) 80 (c) 96 (d) 54
  14. 14.Which number is the odd one out: 68, 59, 13, 29? (a) 68 (b) 59 (c) 13 (d) 29
  15. 15.Which number is the odd one out: 75, 73, 29, 43? (a) 75 (b) 73 (c) 29 (d) 43
  16. 16.Which number is the odd one out: 32, 88, 5, 40? (a) 32 (b) 88 (c) 5 (d) 40
  17. 17.Which number is the odd one out: 97, 43, 79, 32? (a) 97 (b) 43 (c) 79 (d) 32
  18. 18.Which number is the odd one out: 30, 44, 20, 12? (a) 30 (b) 44 (c) 20 (d) 12
  19. 19.Which number is the odd one out: 16, 64, 57, 4? (a) 16 (b) 64 (c) 57 (d) 4
  20. 20.Which number is the odd one out: 14, 2, 13, 11? (a) 14 (b) 2 (c) 13 (d) 11
  21. 21.Which number is the odd one out: 55, 85, 52, 10? (a) 55 (b) 85 (c) 52 (d) 10
  22. 22.Which number is the odd one out: 31, 89, 41, 86? (a) 31 (b) 89 (c) 41 (d) 86
  23. 23.Which number is the odd one out: 52, 2, 59, 71? (a) 52 (b) 2 (c) 59 (d) 71
  24. 24.Which number is the odd one out: 79, 37, 36, 3? (a) 79 (b) 37 (c) 36 (d) 3
  25. 25.Which number is the odd one out: 59, 19, 84, 53? (a) 59 (b) 19 (c) 84 (d) 53
  26. 26.Which number is the odd one out: 24, 73, 41, 51? (a) 24 (b) 73 (c) 41 (d) 51
  27. 27.Which number is the odd one out: 18, 27, 85, 90? (a) 18 (b) 27 (c) 85 (d) 90
  28. 28.Which number is the odd one out: 67, 11, 40, 89? (a) 67 (b) 11 (c) 40 (d) 89
  29. 29.Which number is the odd one out: 97, 17, 56, 89? (a) 97 (b) 17 (c) 56 (d) 89
  30. 30.Which number is the odd one out: 61, 20, 67, 59? (a) 61 (b) 20 (c) 67 (d) 59
  31. 31.Which number is the odd one out: 92, 69, 85, 75? (a) 92 (b) 69 (c) 85 (d) 75
  32. 32.Which number is the odd one out: 53, 65, 13, 11? (a) 53 (b) 65 (c) 13 (d) 11
  33. 33.Which number is the odd one out: 67, 22, 2, 29? (a) 67 (b) 22 (c) 2 (d) 29
  34. 34.Which number is the odd one out: 37, 99, 67, 17? (a) 37 (b) 99 (c) 67 (d) 17
  35. 35.Which number is the odd one out: 20, 78, 6, 66? (a) 20 (b) 78 (c) 6 (d) 66
  36. 36.Which number is the odd one out: 50, 5, 53, 23? (a) 50 (b) 5 (c) 53 (d) 23
  37. 37.Which number is the odd one out: 96, 23, 11, 43? (a) 96 (b) 23 (c) 11 (d) 43
  38. 38.Which number is the odd one out: 31, 55, 70, 67? (a) 31 (b) 55 (c) 70 (d) 67
  39. 39.Which number is the odd one out: 13, 24, 47, 17? (a) 13 (b) 24 (c) 47 (d) 17
  40. 40.Which number is the odd one out: 52, 73, 41, 53? (a) 52 (b) 73 (c) 41 (d) 53

Answer key

  1. 89
  2. 17
  3. 82
  4. 10
  5. 57
  6. 28
  7. 86
  8. 45
  9. 35
  10. 7
  11. 66
  12. 34
  13. 80
  14. 68
  15. 75
  16. 5
  17. 32
  18. 30
  19. 57
  20. 14
  21. 52
  22. 86
  23. 52
  24. 36
  25. 84
  26. 24
  27. 85
  28. 40
  29. 56
  30. 20
  31. 92
  32. 65
  33. 22
  34. 99
  35. 20
  36. 50
  37. 96
  38. 70
  39. 24
  40. 52

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