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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 711 · 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: 19, 11, 16, 41? (a) 19 (b) 11 (c) 16 (d) 41
  2. 2.Which number is the odd one out: 96, 21, 77, 14? (a) 96 (b) 21 (c) 77 (d) 14
  3. 3.Which number is the odd one out: 96, 4, 24, 16? (a) 96 (b) 4 (c) 24 (d) 16
  4. 4.Which number is the odd one out: 24, 80, 48, 65? (a) 24 (b) 80 (c) 48 (d) 65
  5. 5.Which number is the odd one out: 18, 97, 53, 83? (a) 18 (b) 97 (c) 53 (d) 83
  6. 6.Which number is the odd one out: 79, 73, 55, 53? (a) 79 (b) 73 (c) 55 (d) 53
  7. 7.Which number is the odd one out: 18, 46, 54, 23? (a) 18 (b) 46 (c) 54 (d) 23
  8. 8.Which number is the odd one out: 73, 85, 29, 67? (a) 73 (b) 85 (c) 29 (d) 67
  9. 9.Which number is the odd one out: 23, 11, 79, 40? (a) 23 (b) 11 (c) 79 (d) 40
  10. 10.Which number is the odd one out: 97, 74, 17, 89? (a) 97 (b) 74 (c) 17 (d) 89
  11. 11.Which number is the odd one out: 89, 84, 41, 37? (a) 89 (b) 84 (c) 41 (d) 37
  12. 12.Which number is the odd one out: 37, 24, 2, 17? (a) 37 (b) 24 (c) 2 (d) 17
  13. 13.Which number is the odd one out: 94, 13, 79, 73? (a) 94 (b) 13 (c) 79 (d) 73
  14. 14.Which number is the odd one out: 97, 37, 80, 53? (a) 97 (b) 37 (c) 80 (d) 53
  15. 15.Which number is the odd one out: 18, 3, 45, 90? (a) 18 (b) 3 (c) 45 (d) 90
  16. 16.Which number is the odd one out: 43, 26, 61, 73? (a) 43 (b) 26 (c) 61 (d) 73
  17. 17.Which number is the odd one out: 32, 91, 77, 28? (a) 32 (b) 91 (c) 77 (d) 28
  18. 18.Which number is the odd one out: 7, 42, 30, 75? (a) 7 (b) 42 (c) 30 (d) 75
  19. 19.Which number is the odd one out: 81, 79, 3, 59? (a) 81 (b) 79 (c) 3 (d) 59
  20. 20.Which number is the odd one out: 10, 8, 88, 80? (a) 10 (b) 8 (c) 88 (d) 80
  21. 21.Which number is the odd one out: 43, 17, 13, 9? (a) 43 (b) 17 (c) 13 (d) 9
  22. 22.Which number is the odd one out: 29, 13, 67, 28? (a) 29 (b) 13 (c) 67 (d) 28
  23. 23.Which number is the odd one out: 30, 32, 44, 24? (a) 30 (b) 32 (c) 44 (d) 24
  24. 24.Which number is the odd one out: 91, 59, 13, 37? (a) 91 (b) 59 (c) 13 (d) 37
  25. 25.Which number is the odd one out: 74, 80, 40, 88? (a) 74 (b) 80 (c) 40 (d) 88
  26. 26.Which number is the odd one out: 35, 21, 55, 15? (a) 35 (b) 21 (c) 55 (d) 15
  27. 27.Which number is the odd one out: 85, 71, 5, 65? (a) 85 (b) 71 (c) 5 (d) 65
  28. 28.Which number is the odd one out: 43, 3, 45, 53? (a) 43 (b) 3 (c) 45 (d) 53
  29. 29.Which number is the odd one out: 5, 66, 3, 65? (a) 5 (b) 66 (c) 3 (d) 65
  30. 30.Which number is the odd one out: 78, 24, 56, 7? (a) 78 (b) 24 (c) 56 (d) 7
  31. 31.Which number is the odd one out: 98, 7, 41, 43? (a) 98 (b) 7 (c) 41 (d) 43
  32. 32.Which number is the odd one out: 22, 59, 41, 2? (a) 22 (b) 59 (c) 41 (d) 2
  33. 33.Which number is the odd one out: 96, 48, 20, 60? (a) 96 (b) 48 (c) 20 (d) 60
  34. 34.Which number is the odd one out: 27, 54, 35, 90? (a) 27 (b) 54 (c) 35 (d) 90
  35. 35.Which number is the odd one out: 19, 41, 98, 73? (a) 19 (b) 41 (c) 98 (d) 73
  36. 36.Which number is the odd one out: 83, 39, 41, 13? (a) 83 (b) 39 (c) 41 (d) 13
  37. 37.Which number is the odd one out: 53, 91, 31, 7? (a) 53 (b) 91 (c) 31 (d) 7
  38. 38.Which number is the odd one out: 23, 43, 21, 37? (a) 23 (b) 43 (c) 21 (d) 37
  39. 39.Which number is the odd one out: 10, 53, 61, 5? (a) 10 (b) 53 (c) 61 (d) 5
  40. 40.Which number is the odd one out: 2, 19, 92, 17? (a) 2 (b) 19 (c) 92 (d) 17

Answer key

  1. 16
  2. 96
  3. 4
  4. 65
  5. 18
  6. 55
  7. 23
  8. 85
  9. 40
  10. 74
  11. 84
  12. 24
  13. 94
  14. 80
  15. 3
  16. 26
  17. 32
  18. 7
  19. 81
  20. 10
  21. 9
  22. 28
  23. 30
  24. 91
  25. 74
  26. 21
  27. 71
  28. 45
  29. 66
  30. 7
  31. 98
  32. 22
  33. 20
  34. 35
  35. 98
  36. 39
  37. 91
  38. 21
  39. 10
  40. 92

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