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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 220 · 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: 85, 5, 59, 41? (a) 85 (b) 5 (c) 59 (d) 41
  2. 2.Which number is the odd one out: 44, 90, 80, 96? (a) 44 (b) 90 (c) 80 (d) 96
  3. 3.Which number is the odd one out: 40, 12, 32, 80? (a) 40 (b) 12 (c) 32 (d) 80
  4. 4.Which number is the odd one out: 33, 67, 36, 31? (a) 33 (b) 67 (c) 36 (d) 31
  5. 5.Which number is the odd one out: 66, 48, 58, 96? (a) 66 (b) 48 (c) 58 (d) 96
  6. 6.Which number is the odd one out: 43, 74, 46, 2? (a) 43 (b) 74 (c) 46 (d) 2
  7. 7.Which number is the odd one out: 38, 23, 67, 11? (a) 38 (b) 23 (c) 67 (d) 11
  8. 8.Which number is the odd one out: 79, 21, 53, 13? (a) 79 (b) 21 (c) 53 (d) 13
  9. 9.Which number is the odd one out: 27, 81, 9, 13? (a) 27 (b) 81 (c) 9 (d) 13
  10. 10.Which number is the odd one out: 37, 41, 73, 36? (a) 37 (b) 41 (c) 73 (d) 36
  11. 11.Which number is the odd one out: 8, 54, 32, 96? (a) 8 (b) 54 (c) 32 (d) 96
  12. 12.Which number is the odd one out: 2, 83, 12, 13? (a) 2 (b) 83 (c) 12 (d) 13
  13. 13.Which number is the odd one out: 60, 80, 54, 40? (a) 60 (b) 80 (c) 54 (d) 40
  14. 14.Which number is the odd one out: 2, 73, 47, 17? (a) 2 (b) 73 (c) 47 (d) 17
  15. 15.Which number is the odd one out: 33, 64, 4, 16? (a) 33 (b) 64 (c) 4 (d) 16
  16. 16.Which number is the odd one out: 97, 47, 34, 89? (a) 97 (b) 47 (c) 34 (d) 89
  17. 17.Which number is the odd one out: 28, 56, 94, 8? (a) 28 (b) 56 (c) 94 (d) 8
  18. 18.Which number is the odd one out: 62, 29, 41, 23? (a) 62 (b) 29 (c) 41 (d) 23
  19. 19.Which number is the odd one out: 57, 66, 48, 24? (a) 57 (b) 66 (c) 48 (d) 24
  20. 20.Which number is the odd one out: 3, 17, 70, 33? (a) 3 (b) 17 (c) 70 (d) 33
  21. 21.Which number is the odd one out: 4, 64, 16, 75? (a) 4 (b) 64 (c) 16 (d) 75
  22. 22.Which number is the odd one out: 71, 83, 29, 24? (a) 71 (b) 83 (c) 29 (d) 24
  23. 23.Which number is the odd one out: 13, 65, 80, 40? (a) 13 (b) 65 (c) 80 (d) 40
  24. 24.Which number is the odd one out: 19, 97, 67, 77? (a) 19 (b) 97 (c) 67 (d) 77
  25. 25.Which number is the odd one out: 95, 13, 43, 97? (a) 95 (b) 13 (c) 43 (d) 97
  26. 26.Which number is the odd one out: 31, 64, 29, 23? (a) 31 (b) 64 (c) 29 (d) 23
  27. 27.Which number is the odd one out: 31, 41, 64, 61? (a) 31 (b) 41 (c) 64 (d) 61
  28. 28.Which number is the odd one out: 96, 80, 65, 66? (a) 96 (b) 80 (c) 65 (d) 66
  29. 29.Which number is the odd one out: 30, 95, 65, 48? (a) 30 (b) 95 (c) 65 (d) 48
  30. 30.Which number is the odd one out: 19, 23, 97, 9? (a) 19 (b) 23 (c) 97 (d) 9
  31. 31.Which number is the odd one out: 53, 73, 6, 97? (a) 53 (b) 73 (c) 6 (d) 97
  32. 32.Which number is the odd one out: 61, 6, 71, 93? (a) 61 (b) 6 (c) 71 (d) 93
  33. 33.Which number is the odd one out: 41, 19, 67, 85? (a) 41 (b) 19 (c) 67 (d) 85
  34. 34.Which number is the odd one out: 61, 9, 13, 29? (a) 61 (b) 9 (c) 13 (d) 29
  35. 35.Which number is the odd one out: 14, 37, 17, 83? (a) 14 (b) 37 (c) 17 (d) 83
  36. 36.Which number is the odd one out: 35, 85, 70, 72? (a) 35 (b) 85 (c) 70 (d) 72
  37. 37.Which number is the odd one out: 61, 72, 79, 31? (a) 61 (b) 72 (c) 79 (d) 31
  38. 38.Which number is the odd one out: 91, 7, 10, 59? (a) 91 (b) 7 (c) 10 (d) 59
  39. 39.Which number is the odd one out: 43, 29, 23, 9? (a) 43 (b) 29 (c) 23 (d) 9
  40. 40.Which number is the odd one out: 39, 32, 75, 15? (a) 39 (b) 32 (c) 75 (d) 15

Answer key

  1. 85
  2. 90
  3. 12
  4. 36
  5. 58
  6. 43
  7. 38
  8. 21
  9. 13
  10. 36
  11. 54
  12. 12
  13. 54
  14. 2
  15. 33
  16. 34
  17. 94
  18. 62
  19. 57
  20. 70
  21. 75
  22. 24
  23. 13
  24. 77
  25. 95
  26. 64
  27. 64
  28. 65
  29. 48
  30. 9
  31. 6
  32. 6
  33. 85
  34. 9
  35. 14
  36. 72
  37. 72
  38. 10
  39. 9
  40. 32

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