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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 193 · 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: 27, 3, 41, 59? (a) 27 (b) 3 (c) 41 (d) 59
  2. 2.Which number is the odd one out: 98, 73, 19, 31? (a) 98 (b) 73 (c) 19 (d) 31
  3. 3.Which number is the odd one out: 4, 73, 37, 31? (a) 4 (b) 73 (c) 37 (d) 31
  4. 4.Which number is the odd one out: 79, 43, 12, 23? (a) 79 (b) 43 (c) 12 (d) 23
  5. 5.Which number is the odd one out: 43, 73, 66, 11? (a) 43 (b) 73 (c) 66 (d) 11
  6. 6.Which number is the odd one out: 17, 66, 19, 13? (a) 17 (b) 66 (c) 19 (d) 13
  7. 7.Which number is the odd one out: 75, 11, 55, 15? (a) 75 (b) 11 (c) 55 (d) 15
  8. 8.Which number is the odd one out: 89, 96, 3, 97? (a) 89 (b) 96 (c) 3 (d) 97
  9. 9.Which number is the odd one out: 89, 73, 56, 71? (a) 89 (b) 73 (c) 56 (d) 71
  10. 10.Which number is the odd one out: 72, 47, 97, 71? (a) 72 (b) 47 (c) 97 (d) 71
  11. 11.Which number is the odd one out: 29, 97, 18, 73? (a) 29 (b) 97 (c) 18 (d) 73
  12. 12.Which number is the odd one out: 58, 40, 8, 80? (a) 58 (b) 40 (c) 8 (d) 80
  13. 13.Which number is the odd one out: 2, 97, 8, 37? (a) 2 (b) 97 (c) 8 (d) 37
  14. 14.Which number is the odd one out: 80, 95, 89, 47? (a) 80 (b) 95 (c) 89 (d) 47
  15. 15.Which number is the odd one out: 60, 61, 97, 11? (a) 60 (b) 61 (c) 97 (d) 11
  16. 16.Which number is the odd one out: 53, 37, 79, 94? (a) 53 (b) 37 (c) 79 (d) 94
  17. 17.Which number is the odd one out: 36, 12, 81, 99? (a) 36 (b) 12 (c) 81 (d) 99
  18. 18.Which number is the odd one out: 47, 33, 12, 11? (a) 47 (b) 33 (c) 12 (d) 11
  19. 19.Which number is the odd one out: 29, 23, 19, 92? (a) 29 (b) 23 (c) 19 (d) 92
  20. 20.Which number is the odd one out: 67, 90, 11, 29? (a) 67 (b) 90 (c) 11 (d) 29
  21. 21.Which number is the odd one out: 6, 37, 29, 97? (a) 6 (b) 37 (c) 29 (d) 97
  22. 22.Which number is the odd one out: 71, 29, 53, 40? (a) 71 (b) 29 (c) 53 (d) 40
  23. 23.Which number is the odd one out: 6, 30, 10, 23? (a) 6 (b) 30 (c) 10 (d) 23
  24. 24.Which number is the odd one out: 29, 52, 17, 43? (a) 29 (b) 52 (c) 17 (d) 43
  25. 25.Which number is the odd one out: 41, 81, 79, 89? (a) 41 (b) 81 (c) 79 (d) 89
  26. 26.Which number is the odd one out: 11, 2, 64, 29? (a) 11 (b) 2 (c) 64 (d) 29
  27. 27.Which number is the odd one out: 26, 8, 12, 24? (a) 26 (b) 8 (c) 12 (d) 24
  28. 28.Which number is the odd one out: 67, 27, 43, 61? (a) 67 (b) 27 (c) 43 (d) 61
  29. 29.Which number is the odd one out: 80, 8, 16, 25? (a) 80 (b) 8 (c) 16 (d) 25
  30. 30.Which number is the odd one out: 81, 99, 21, 9? (a) 81 (b) 99 (c) 21 (d) 9
  31. 31.Which number is the odd one out: 2, 89, 43, 4? (a) 2 (b) 89 (c) 43 (d) 4
  32. 32.Which number is the odd one out: 54, 41, 5, 55? (a) 54 (b) 41 (c) 5 (d) 55
  33. 33.Which number is the odd one out: 43, 96, 79, 71? (a) 43 (b) 96 (c) 79 (d) 71
  34. 34.Which number is the odd one out: 47, 37, 66, 17? (a) 47 (b) 37 (c) 66 (d) 17
  35. 35.Which number is the odd one out: 23, 29, 20, 41? (a) 23 (b) 29 (c) 20 (d) 41
  36. 36.Which number is the odd one out: 12, 89, 97, 17? (a) 12 (b) 89 (c) 97 (d) 17
  37. 37.Which number is the odd one out: 79, 59, 17, 95? (a) 79 (b) 59 (c) 17 (d) 95
  38. 38.Which number is the odd one out: 89, 79, 94, 83? (a) 89 (b) 79 (c) 94 (d) 83
  39. 39.Which number is the odd one out: 91, 56, 24, 48? (a) 91 (b) 56 (c) 24 (d) 48
  40. 40.Which number is the odd one out: 59, 41, 29, 35? (a) 59 (b) 41 (c) 29 (d) 35

Answer key

  1. 27
  2. 98
  3. 4
  4. 12
  5. 66
  6. 66
  7. 11
  8. 96
  9. 56
  10. 72
  11. 18
  12. 58
  13. 8
  14. 80
  15. 60
  16. 94
  17. 12
  18. 12
  19. 92
  20. 90
  21. 6
  22. 40
  23. 23
  24. 52
  25. 81
  26. 64
  27. 26
  28. 27
  29. 25
  30. 21
  31. 4
  32. 54
  33. 96
  34. 66
  35. 20
  36. 12
  37. 95
  38. 94
  39. 91
  40. 35

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