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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 765 · 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: 31, 27, 18, 54? (a) 31 (b) 27 (c) 18 (d) 54
  2. 2.Which number is the odd one out: 7, 49, 16, 64? (a) 7 (b) 49 (c) 16 (d) 64
  3. 3.Which number is the odd one out: 73, 35, 41, 53? (a) 73 (b) 35 (c) 41 (d) 53
  4. 4.Which number is the odd one out: 96, 48, 6, 71? (a) 96 (b) 48 (c) 6 (d) 71
  5. 5.Which number is the odd one out: 70, 33, 69, 75? (a) 70 (b) 33 (c) 69 (d) 75
  6. 6.Which number is the odd one out: 35, 8, 96, 48? (a) 35 (b) 8 (c) 96 (d) 48
  7. 7.Which number is the odd one out: 59, 13, 53, 51? (a) 59 (b) 13 (c) 53 (d) 51
  8. 8.Which number is the odd one out: 30, 67, 73, 97? (a) 30 (b) 67 (c) 73 (d) 97
  9. 9.Which number is the odd one out: 13, 33, 59, 3? (a) 13 (b) 33 (c) 59 (d) 3
  10. 10.Which number is the odd one out: 65, 15, 85, 78? (a) 65 (b) 15 (c) 85 (d) 78
  11. 11.Which number is the odd one out: 67, 23, 94, 11? (a) 67 (b) 23 (c) 94 (d) 11
  12. 12.Which number is the odd one out: 61, 79, 38, 29? (a) 61 (b) 79 (c) 38 (d) 29
  13. 13.Which number is the odd one out: 61, 72, 43, 41? (a) 61 (b) 72 (c) 43 (d) 41
  14. 14.Which number is the odd one out: 79, 23, 76, 43? (a) 79 (b) 23 (c) 76 (d) 43
  15. 15.Which number is the odd one out: 59, 17, 70, 7? (a) 59 (b) 17 (c) 70 (d) 7
  16. 16.Which number is the odd one out: 84, 79, 43, 2? (a) 84 (b) 79 (c) 43 (d) 2
  17. 17.Which number is the odd one out: 47, 79, 40, 2? (a) 47 (b) 79 (c) 40 (d) 2
  18. 18.Which number is the odd one out: 35, 71, 37, 67? (a) 35 (b) 71 (c) 37 (d) 67
  19. 19.Which number is the odd one out: 14, 13, 97, 41? (a) 14 (b) 13 (c) 97 (d) 41
  20. 20.Which number is the odd one out: 41, 36, 19, 13? (a) 41 (b) 36 (c) 19 (d) 13
  21. 21.Which number is the odd one out: 59, 31, 22, 11? (a) 59 (b) 31 (c) 22 (d) 11
  22. 22.Which number is the odd one out: 43, 89, 80, 71? (a) 43 (b) 89 (c) 80 (d) 71
  23. 23.Which number is the odd one out: 28, 56, 80, 40? (a) 28 (b) 56 (c) 80 (d) 40
  24. 24.Which number is the odd one out: 24, 31, 13, 59? (a) 24 (b) 31 (c) 13 (d) 59
  25. 25.Which number is the odd one out: 3, 43, 81, 29? (a) 3 (b) 43 (c) 81 (d) 29
  26. 26.Which number is the odd one out: 6, 97, 37, 73? (a) 6 (b) 97 (c) 37 (d) 73
  27. 27.Which number is the odd one out: 78, 3, 6, 66? (a) 78 (b) 3 (c) 6 (d) 66
  28. 28.Which number is the odd one out: 43, 91, 83, 17? (a) 43 (b) 91 (c) 83 (d) 17
  29. 29.Which number is the odd one out: 61, 98, 79, 19? (a) 61 (b) 98 (c) 79 (d) 19
  30. 30.Which number is the odd one out: 81, 27, 9, 6? (a) 81 (b) 27 (c) 9 (d) 6
  31. 31.Which number is the odd one out: 48, 68, 96, 23? (a) 48 (b) 68 (c) 96 (d) 23
  32. 32.Which number is the odd one out: 24, 6, 96, 9? (a) 24 (b) 6 (c) 96 (d) 9
  33. 33.Which number is the odd one out: 17, 31, 70, 61? (a) 17 (b) 31 (c) 70 (d) 61
  34. 34.Which number is the odd one out: 50, 55, 59, 89? (a) 50 (b) 55 (c) 59 (d) 89
  35. 35.Which number is the odd one out: 19, 79, 97, 15? (a) 19 (b) 79 (c) 97 (d) 15
  36. 36.Which number is the odd one out: 23, 6, 47, 59? (a) 23 (b) 6 (c) 47 (d) 59
  37. 37.Which number is the odd one out: 2, 65, 55, 79? (a) 2 (b) 65 (c) 55 (d) 79
  38. 38.Which number is the odd one out: 96, 88, 79, 24? (a) 96 (b) 88 (c) 79 (d) 24
  39. 39.Which number is the odd one out: 11, 29, 61, 55? (a) 11 (b) 29 (c) 61 (d) 55
  40. 40.Which number is the odd one out: 79, 42, 83, 29? (a) 79 (b) 42 (c) 83 (d) 29

Answer key

  1. 31
  2. 7
  3. 35
  4. 71
  5. 70
  6. 35
  7. 51
  8. 30
  9. 33
  10. 78
  11. 94
  12. 38
  13. 72
  14. 76
  15. 70
  16. 84
  17. 40
  18. 35
  19. 14
  20. 36
  21. 22
  22. 80
  23. 28
  24. 24
  25. 81
  26. 6
  27. 3
  28. 91
  29. 98
  30. 6
  31. 23
  32. 9
  33. 70
  34. 50
  35. 15
  36. 6
  37. 2
  38. 79
  39. 55
  40. 42

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