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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 956 · 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: 13, 2, 53, 94? (a) 13 (b) 2 (c) 53 (d) 94
  2. 2.Which number is the odd one out: 36, 71, 53, 97? (a) 36 (b) 71 (c) 53 (d) 97
  3. 3.Which number is the odd one out: 39, 61, 89, 90? (a) 39 (b) 61 (c) 89 (d) 90
  4. 4.Which number is the odd one out: 83, 85, 41, 47? (a) 83 (b) 85 (c) 41 (d) 47
  5. 5.Which number is the odd one out: 54, 72, 96, 41? (a) 54 (b) 72 (c) 96 (d) 41
  6. 6.Which number is the odd one out: 79, 17, 28, 2? (a) 79 (b) 17 (c) 28 (d) 2
  7. 7.Which number is the odd one out: 11, 76, 73, 47? (a) 11 (b) 76 (c) 73 (d) 47
  8. 8.Which number is the odd one out: 37, 97, 44, 23? (a) 37 (b) 97 (c) 44 (d) 23
  9. 9.Which number is the odd one out: 73, 11, 15, 5? (a) 73 (b) 11 (c) 15 (d) 5
  10. 10.Which number is the odd one out: 50, 41, 73, 71? (a) 50 (b) 41 (c) 73 (d) 71
  11. 11.Which number is the odd one out: 75, 4, 9, 45? (a) 75 (b) 4 (c) 9 (d) 45
  12. 12.Which number is the odd one out: 6, 66, 14, 78? (a) 6 (b) 66 (c) 14 (d) 78
  13. 13.Which number is the odd one out: 96, 85, 55, 80? (a) 96 (b) 85 (c) 55 (d) 80
  14. 14.Which number is the odd one out: 13, 56, 97, 83? (a) 13 (b) 56 (c) 97 (d) 83
  15. 15.Which number is the odd one out: 95, 66, 90, 18? (a) 95 (b) 66 (c) 90 (d) 18
  16. 16.Which number is the odd one out: 72, 77, 56, 21? (a) 72 (b) 77 (c) 56 (d) 21
  17. 17.Which number is the odd one out: 53, 47, 72, 67? (a) 53 (b) 47 (c) 72 (d) 67
  18. 18.Which number is the odd one out: 47, 29, 44, 71? (a) 47 (b) 29 (c) 44 (d) 71
  19. 19.Which number is the odd one out: 45, 5, 37, 17? (a) 45 (b) 5 (c) 37 (d) 17
  20. 20.Which number is the odd one out: 18, 12, 36, 49? (a) 18 (b) 12 (c) 36 (d) 49
  21. 21.Which number is the odd one out: 79, 3, 96, 19? (a) 79 (b) 3 (c) 96 (d) 19
  22. 22.Which number is the odd one out: 42, 60, 20, 10? (a) 42 (b) 60 (c) 20 (d) 10
  23. 23.Which number is the odd one out: 96, 48, 47, 24? (a) 96 (b) 48 (c) 47 (d) 24
  24. 24.Which number is the odd one out: 70, 13, 31, 89? (a) 70 (b) 13 (c) 31 (d) 89
  25. 25.Which number is the odd one out: 59, 53, 17, 21? (a) 59 (b) 53 (c) 17 (d) 21
  26. 26.Which number is the odd one out: 98, 29, 97, 89? (a) 98 (b) 29 (c) 97 (d) 89
  27. 27.Which number is the odd one out: 11, 61, 34, 59? (a) 11 (b) 61 (c) 34 (d) 59
  28. 28.Which number is the odd one out: 47, 14, 19, 13? (a) 47 (b) 14 (c) 19 (d) 13
  29. 29.Which number is the odd one out: 98, 31, 17, 7? (a) 98 (b) 31 (c) 17 (d) 7
  30. 30.Which number is the odd one out: 19, 41, 21, 11? (a) 19 (b) 41 (c) 21 (d) 11
  31. 31.Which number is the odd one out: 82, 59, 41, 2? (a) 82 (b) 59 (c) 41 (d) 2
  32. 32.Which number is the odd one out: 5, 86, 76, 44? (a) 5 (b) 86 (c) 76 (d) 44
  33. 33.Which number is the odd one out: 67, 53, 65, 31? (a) 67 (b) 53 (c) 65 (d) 31
  34. 34.Which number is the odd one out: 43, 23, 83, 56? (a) 43 (b) 23 (c) 83 (d) 56
  35. 35.Which number is the odd one out: 3, 64, 16, 4? (a) 3 (b) 64 (c) 16 (d) 4
  36. 36.Which number is the odd one out: 69, 97, 90, 67? (a) 69 (b) 97 (c) 90 (d) 67
  37. 37.Which number is the odd one out: 11, 51, 3, 29? (a) 11 (b) 51 (c) 3 (d) 29
  38. 38.Which number is the odd one out: 29, 17, 78, 31? (a) 29 (b) 17 (c) 78 (d) 31
  39. 39.Which number is the odd one out: 43, 35, 53, 79? (a) 43 (b) 35 (c) 53 (d) 79
  40. 40.Which number is the odd one out: 53, 12, 17, 3? (a) 53 (b) 12 (c) 17 (d) 3

Answer key

  1. 94
  2. 36
  3. 90
  4. 85
  5. 41
  6. 28
  7. 76
  8. 44
  9. 15
  10. 50
  11. 4
  12. 14
  13. 96
  14. 56
  15. 95
  16. 72
  17. 72
  18. 44
  19. 45
  20. 49
  21. 96
  22. 42
  23. 47
  24. 70
  25. 21
  26. 98
  27. 34
  28. 14
  29. 98
  30. 21
  31. 82
  32. 5
  33. 65
  34. 56
  35. 3
  36. 90
  37. 51
  38. 78
  39. 35
  40. 12

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