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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 845 · 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: 83, 13, 19, 4? (a) 83 (b) 13 (c) 19 (d) 4
  2. 2.Which number is the odd one out: 65, 48, 50, 95? (a) 65 (b) 48 (c) 50 (d) 95
  3. 3.Which number is the odd one out: 37, 85, 73, 83? (a) 37 (b) 85 (c) 73 (d) 83
  4. 4.Which number is the odd one out: 33, 37, 23, 43? (a) 33 (b) 37 (c) 23 (d) 43
  5. 5.Which number is the odd one out: 68, 24, 48, 38? (a) 68 (b) 24 (c) 48 (d) 38
  6. 6.Which number is the odd one out: 86, 19, 31, 13? (a) 86 (b) 19 (c) 31 (d) 13
  7. 7.Which number is the odd one out: 53, 41, 29, 34? (a) 53 (b) 41 (c) 29 (d) 34
  8. 8.Which number is the odd one out: 6, 66, 78, 10? (a) 6 (b) 66 (c) 78 (d) 10
  9. 9.Which number is the odd one out: 32, 4, 98, 64? (a) 32 (b) 4 (c) 98 (d) 64
  10. 10.Which number is the odd one out: 29, 86, 2, 13? (a) 29 (b) 86 (c) 2 (d) 13
  11. 11.Which number is the odd one out: 84, 23, 89, 73? (a) 84 (b) 23 (c) 89 (d) 73
  12. 12.Which number is the odd one out: 43, 93, 3, 50? (a) 43 (b) 93 (c) 3 (d) 50
  13. 13.Which number is the odd one out: 61, 11, 83, 35? (a) 61 (b) 11 (c) 83 (d) 35
  14. 14.Which number is the odd one out: 54, 11, 73, 47? (a) 54 (b) 11 (c) 73 (d) 47
  15. 15.Which number is the odd one out: 71, 94, 2, 11? (a) 71 (b) 94 (c) 2 (d) 11
  16. 16.Which number is the odd one out: 17, 65, 71, 73? (a) 17 (b) 65 (c) 71 (d) 73
  17. 17.Which number is the odd one out: 78, 97, 6, 66? (a) 78 (b) 97 (c) 6 (d) 66
  18. 18.Which number is the odd one out: 83, 43, 28, 13? (a) 83 (b) 43 (c) 28 (d) 13
  19. 19.Which number is the odd one out: 67, 19, 13, 94? (a) 67 (b) 19 (c) 13 (d) 94
  20. 20.Which number is the odd one out: 66, 97, 71, 83? (a) 66 (b) 97 (c) 71 (d) 83
  21. 21.Which number is the odd one out: 67, 35, 19, 31? (a) 67 (b) 35 (c) 19 (d) 31
  22. 22.Which number is the odd one out: 32, 56, 7, 8? (a) 32 (b) 56 (c) 7 (d) 8
  23. 23.Which number is the odd one out: 6, 73, 79, 89? (a) 6 (b) 73 (c) 79 (d) 89
  24. 24.Which number is the odd one out: 25, 32, 16, 80? (a) 25 (b) 32 (c) 16 (d) 80
  25. 25.Which number is the odd one out: 23, 61, 11, 25? (a) 23 (b) 61 (c) 11 (d) 25
  26. 26.Which number is the odd one out: 73, 78, 97, 17? (a) 73 (b) 78 (c) 97 (d) 17
  27. 27.Which number is the odd one out: 89, 51, 37, 47? (a) 89 (b) 51 (c) 37 (d) 47
  28. 28.Which number is the odd one out: 16, 9, 99, 64? (a) 16 (b) 9 (c) 99 (d) 64
  29. 29.Which number is the odd one out: 67, 43, 19, 28? (a) 67 (b) 43 (c) 19 (d) 28
  30. 30.Which number is the odd one out: 80, 97, 89, 61? (a) 80 (b) 97 (c) 89 (d) 61
  31. 31.Which number is the odd one out: 11, 18, 13, 59? (a) 11 (b) 18 (c) 13 (d) 59
  32. 32.Which number is the odd one out: 64, 32, 16, 50? (a) 64 (b) 32 (c) 16 (d) 50
  33. 33.Which number is the odd one out: 45, 93, 90, 18? (a) 45 (b) 93 (c) 90 (d) 18
  34. 34.Which number is the odd one out: 29, 95, 43, 37? (a) 29 (b) 95 (c) 43 (d) 37
  35. 35.Which number is the odd one out: 17, 83, 42, 41? (a) 17 (b) 83 (c) 42 (d) 41
  36. 36.Which number is the odd one out: 17, 47, 43, 80? (a) 17 (b) 47 (c) 43 (d) 80
  37. 37.Which number is the odd one out: 84, 70, 60, 78? (a) 84 (b) 70 (c) 60 (d) 78
  38. 38.Which number is the odd one out: 55, 40, 72, 65? (a) 55 (b) 40 (c) 72 (d) 65
  39. 39.Which number is the odd one out: 41, 59, 18, 89? (a) 41 (b) 59 (c) 18 (d) 89
  40. 40.Which number is the odd one out: 17, 13, 22, 67? (a) 17 (b) 13 (c) 22 (d) 67

Answer key

  1. 4
  2. 48
  3. 85
  4. 33
  5. 38
  6. 86
  7. 34
  8. 10
  9. 98
  10. 86
  11. 84
  12. 50
  13. 35
  14. 54
  15. 94
  16. 65
  17. 97
  18. 28
  19. 94
  20. 66
  21. 35
  22. 7
  23. 6
  24. 25
  25. 25
  26. 78
  27. 51
  28. 99
  29. 28
  30. 80
  31. 18
  32. 50
  33. 93
  34. 95
  35. 42
  36. 80
  37. 70
  38. 72
  39. 18
  40. 22

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