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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 875 · 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: 43, 5, 25, 16? (a) 43 (b) 5 (c) 25 (d) 16
  2. 2.Which number is the odd one out: 41, 56, 23, 59? (a) 41 (b) 56 (c) 23 (d) 59
  3. 3.Which number is the odd one out: 2, 79, 13, 56? (a) 2 (b) 79 (c) 13 (d) 56
  4. 4.Which number is the odd one out: 19, 4, 2, 13? (a) 19 (b) 4 (c) 2 (d) 13
  5. 5.Which number is the odd one out: 17, 36, 19, 29? (a) 17 (b) 36 (c) 19 (d) 29
  6. 6.Which number is the odd one out: 70, 17, 47, 71? (a) 70 (b) 17 (c) 47 (d) 71
  7. 7.Which number is the odd one out: 82, 22, 61, 2? (a) 82 (b) 22 (c) 61 (d) 2
  8. 8.Which number is the odd one out: 29, 78, 17, 67? (a) 29 (b) 78 (c) 17 (d) 67
  9. 9.Which number is the odd one out: 61, 43, 56, 41? (a) 61 (b) 43 (c) 56 (d) 41
  10. 10.Which number is the odd one out: 7, 38, 62, 34? (a) 7 (b) 38 (c) 62 (d) 34
  11. 11.Which number is the odd one out: 53, 97, 23, 30? (a) 53 (b) 97 (c) 23 (d) 30
  12. 12.Which number is the odd one out: 80, 61, 40, 5? (a) 80 (b) 61 (c) 40 (d) 5
  13. 13.Which number is the odd one out: 59, 30, 97, 53? (a) 59 (b) 30 (c) 97 (d) 53
  14. 14.Which number is the odd one out: 88, 32, 76, 73? (a) 88 (b) 32 (c) 76 (d) 73
  15. 15.Which number is the odd one out: 85, 4, 99, 45? (a) 85 (b) 4 (c) 99 (d) 45
  16. 16.Which number is the odd one out: 88, 41, 37, 19? (a) 88 (b) 41 (c) 37 (d) 19
  17. 17.Which number is the odd one out: 9, 81, 99, 11? (a) 9 (b) 81 (c) 99 (d) 11
  18. 18.Which number is the odd one out: 86, 96, 48, 24? (a) 86 (b) 96 (c) 48 (d) 24
  19. 19.Which number is the odd one out: 99, 59, 43, 13? (a) 99 (b) 59 (c) 43 (d) 13
  20. 20.Which number is the odd one out: 19, 89, 47, 78? (a) 19 (b) 89 (c) 47 (d) 78
  21. 21.Which number is the odd one out: 26, 71, 97, 59? (a) 26 (b) 71 (c) 97 (d) 59
  22. 22.Which number is the odd one out: 61, 83, 27, 47? (a) 61 (b) 83 (c) 27 (d) 47
  23. 23.Which number is the odd one out: 23, 19, 84, 47? (a) 23 (b) 19 (c) 84 (d) 47
  24. 24.Which number is the odd one out: 80, 32, 8, 5? (a) 80 (b) 32 (c) 8 (d) 5
  25. 25.Which number is the odd one out: 37, 57, 97, 78? (a) 37 (b) 57 (c) 97 (d) 78
  26. 26.Which number is the odd one out: 17, 41, 69, 29? (a) 17 (b) 41 (c) 69 (d) 29
  27. 27.Which number is the odd one out: 43, 83, 67, 70? (a) 43 (b) 83 (c) 67 (d) 70
  28. 28.Which number is the odd one out: 17, 13, 39, 29? (a) 17 (b) 13 (c) 39 (d) 29
  29. 29.Which number is the odd one out: 60, 81, 9, 99? (a) 60 (b) 81 (c) 9 (d) 99
  30. 30.Which number is the odd one out: 96, 8, 36, 64? (a) 96 (b) 8 (c) 36 (d) 64
  31. 31.Which number is the odd one out: 73, 7, 89, 28? (a) 73 (b) 7 (c) 89 (d) 28
  32. 32.Which number is the odd one out: 96, 54, 72, 26? (a) 96 (b) 54 (c) 72 (d) 26
  33. 33.Which number is the odd one out: 71, 97, 25, 23? (a) 71 (b) 97 (c) 25 (d) 23
  34. 34.Which number is the odd one out: 28, 79, 47, 41? (a) 28 (b) 79 (c) 47 (d) 41
  35. 35.Which number is the odd one out: 88, 42, 32, 68? (a) 88 (b) 42 (c) 32 (d) 68
  36. 36.Which number is the odd one out: 91, 27, 54, 18? (a) 91 (b) 27 (c) 54 (d) 18
  37. 37.Which number is the odd one out: 79, 74, 29, 23? (a) 79 (b) 74 (c) 29 (d) 23
  38. 38.Which number is the odd one out: 52, 13, 67, 97? (a) 52 (b) 13 (c) 67 (d) 97
  39. 39.Which number is the odd one out: 29, 41, 16, 17? (a) 29 (b) 41 (c) 16 (d) 17
  40. 40.Which number is the odd one out: 19, 79, 90, 13? (a) 19 (b) 79 (c) 90 (d) 13

Answer key

  1. 16
  2. 56
  3. 56
  4. 4
  5. 36
  6. 70
  7. 61
  8. 78
  9. 56
  10. 7
  11. 30
  12. 61
  13. 30
  14. 73
  15. 4
  16. 88
  17. 11
  18. 86
  19. 99
  20. 78
  21. 26
  22. 27
  23. 84
  24. 5
  25. 78
  26. 69
  27. 70
  28. 39
  29. 60
  30. 36
  31. 28
  32. 26
  33. 25
  34. 28
  35. 42
  36. 91
  37. 74
  38. 52
  39. 16
  40. 90

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