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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 503 · 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: 84, 36, 27, 9? (a) 84 (b) 36 (c) 27 (d) 9
  2. 2.Which number is the odd one out: 98, 91, 29, 79? (a) 98 (b) 91 (c) 29 (d) 79
  3. 3.Which number is the odd one out: 5, 17, 35, 83? (a) 5 (b) 17 (c) 35 (d) 83
  4. 4.Which number is the odd one out: 18, 99, 13, 67? (a) 18 (b) 99 (c) 13 (d) 67
  5. 5.Which number is the odd one out: 43, 14, 17, 47? (a) 43 (b) 14 (c) 17 (d) 47
  6. 6.Which number is the odd one out: 18, 72, 15, 96? (a) 18 (b) 72 (c) 15 (d) 96
  7. 7.Which number is the odd one out: 37, 97, 81, 59? (a) 37 (b) 97 (c) 81 (d) 59
  8. 8.Which number is the odd one out: 67, 51, 97, 36? (a) 67 (b) 51 (c) 97 (d) 36
  9. 9.Which number is the odd one out: 88, 85, 48, 24? (a) 88 (b) 85 (c) 48 (d) 24
  10. 10.Which number is the odd one out: 90, 61, 37, 5? (a) 90 (b) 61 (c) 37 (d) 5
  11. 11.Which number is the odd one out: 84, 41, 79, 39? (a) 84 (b) 41 (c) 79 (d) 39
  12. 12.Which number is the odd one out: 43, 39, 67, 79? (a) 43 (b) 39 (c) 67 (d) 79
  13. 13.Which number is the odd one out: 2, 31, 47, 8? (a) 2 (b) 31 (c) 47 (d) 8
  14. 14.Which number is the odd one out: 13, 6, 83, 79? (a) 13 (b) 6 (c) 83 (d) 79
  15. 15.Which number is the odd one out: 81, 99, 27, 49? (a) 81 (b) 99 (c) 27 (d) 49
  16. 16.Which number is the odd one out: 24, 44, 96, 86? (a) 24 (b) 44 (c) 96 (d) 86
  17. 17.Which number is the odd one out: 2, 96, 73, 11? (a) 2 (b) 96 (c) 73 (d) 11
  18. 18.Which number is the odd one out: 29, 52, 2, 47? (a) 29 (b) 52 (c) 2 (d) 47
  19. 19.Which number is the odd one out: 72, 96, 35, 90? (a) 72 (b) 96 (c) 35 (d) 90
  20. 20.Which number is the odd one out: 71, 83, 72, 59? (a) 71 (b) 83 (c) 72 (d) 59
  21. 21.Which number is the odd one out: 24, 43, 3, 29? (a) 24 (b) 43 (c) 3 (d) 29
  22. 22.Which number is the odd one out: 83, 42, 19, 3? (a) 83 (b) 42 (c) 19 (d) 3
  23. 23.Which number is the odd one out: 27, 24, 81, 36? (a) 27 (b) 24 (c) 81 (d) 36
  24. 24.Which number is the odd one out: 24, 52, 30, 32? (a) 24 (b) 52 (c) 30 (d) 32
  25. 25.Which number is the odd one out: 11, 18, 29, 47? (a) 11 (b) 18 (c) 29 (d) 47
  26. 26.Which number is the odd one out: 72, 67, 3, 73? (a) 72 (b) 67 (c) 3 (d) 73
  27. 27.Which number is the odd one out: 23, 19, 18, 61? (a) 23 (b) 19 (c) 18 (d) 61
  28. 28.Which number is the odd one out: 89, 47, 14, 83? (a) 89 (b) 47 (c) 14 (d) 83
  29. 29.Which number is the odd one out: 53, 90, 17, 2? (a) 53 (b) 90 (c) 17 (d) 2
  30. 30.Which number is the odd one out: 77, 48, 24, 96? (a) 77 (b) 48 (c) 24 (d) 96
  31. 31.Which number is the odd one out: 19, 54, 79, 41? (a) 19 (b) 54 (c) 79 (d) 41
  32. 32.Which number is the odd one out: 48, 73, 67, 71? (a) 48 (b) 73 (c) 67 (d) 71
  33. 33.Which number is the odd one out: 62, 60, 12, 65? (a) 62 (b) 60 (c) 12 (d) 65
  34. 34.Which number is the odd one out: 47, 49, 67, 53? (a) 47 (b) 49 (c) 67 (d) 53
  35. 35.Which number is the odd one out: 60, 24, 58, 40? (a) 60 (b) 24 (c) 58 (d) 40
  36. 36.Which number is the odd one out: 49, 99, 81, 56? (a) 49 (b) 99 (c) 81 (d) 56
  37. 37.Which number is the odd one out: 88, 40, 80, 11? (a) 88 (b) 40 (c) 80 (d) 11
  38. 38.Which number is the odd one out: 85, 55, 11, 65? (a) 85 (b) 55 (c) 11 (d) 65
  39. 39.Which number is the odd one out: 56, 61, 17, 37? (a) 56 (b) 61 (c) 17 (d) 37
  40. 40.Which number is the odd one out: 83, 18, 41, 59? (a) 83 (b) 18 (c) 41 (d) 59

Answer key

  1. 84
  2. 98
  3. 35
  4. 18
  5. 14
  6. 15
  7. 81
  8. 36
  9. 85
  10. 90
  11. 84
  12. 39
  13. 8
  14. 6
  15. 49
  16. 86
  17. 96
  18. 52
  19. 35
  20. 72
  21. 24
  22. 42
  23. 24
  24. 30
  25. 18
  26. 72
  27. 18
  28. 14
  29. 90
  30. 77
  31. 54
  32. 48
  33. 65
  34. 49
  35. 58
  36. 56
  37. 11
  38. 11
  39. 56
  40. 18

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