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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 997 · 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: 54, 72, 38, 48? (a) 54 (b) 72 (c) 38 (d) 48
  2. 2.Which number is the odd one out: 63, 14, 36, 49? (a) 63 (b) 14 (c) 36 (d) 49
  3. 3.Which number is the odd one out: 85, 99, 90, 18? (a) 85 (b) 99 (c) 90 (d) 18
  4. 4.Which number is the odd one out: 6, 13, 71, 53? (a) 6 (b) 13 (c) 71 (d) 53
  5. 5.Which number is the odd one out: 43, 47, 53, 18? (a) 43 (b) 47 (c) 53 (d) 18
  6. 6.Which number is the odd one out: 7, 2, 89, 84? (a) 7 (b) 2 (c) 89 (d) 84
  7. 7.Which number is the odd one out: 73, 47, 3, 18? (a) 73 (b) 47 (c) 3 (d) 18
  8. 8.Which number is the odd one out: 53, 18, 19, 39? (a) 53 (b) 18 (c) 19 (d) 39
  9. 9.Which number is the odd one out: 13, 37, 88, 41? (a) 13 (b) 37 (c) 88 (d) 41
  10. 10.Which number is the odd one out: 99, 37, 13, 59? (a) 99 (b) 37 (c) 13 (d) 59
  11. 11.Which number is the odd one out: 67, 41, 68, 71? (a) 67 (b) 41 (c) 68 (d) 71
  12. 12.Which number is the odd one out: 53, 91, 89, 31? (a) 53 (b) 91 (c) 89 (d) 31
  13. 13.Which number is the odd one out: 16, 4, 64, 76? (a) 16 (b) 4 (c) 64 (d) 76
  14. 14.Which number is the odd one out: 18, 76, 88, 48? (a) 18 (b) 76 (c) 88 (d) 48
  15. 15.Which number is the odd one out: 16, 71, 2, 59? (a) 16 (b) 71 (c) 2 (d) 59
  16. 16.Which number is the odd one out: 88, 64, 72, 36? (a) 88 (b) 64 (c) 72 (d) 36
  17. 17.Which number is the odd one out: 35, 9, 81, 25? (a) 35 (b) 9 (c) 81 (d) 25
  18. 18.Which number is the odd one out: 64, 16, 48, 18? (a) 64 (b) 16 (c) 48 (d) 18
  19. 19.Which number is the odd one out: 14, 77, 54, 91? (a) 14 (b) 77 (c) 54 (d) 91
  20. 20.Which number is the odd one out: 25, 61, 83, 19? (a) 25 (b) 61 (c) 83 (d) 19
  21. 21.Which number is the odd one out: 29, 96, 71, 97? (a) 29 (b) 96 (c) 71 (d) 97
  22. 22.Which number is the odd one out: 47, 20, 53, 23? (a) 47 (b) 20 (c) 53 (d) 23
  23. 23.Which number is the odd one out: 16, 39, 64, 32? (a) 16 (b) 39 (c) 64 (d) 32
  24. 24.Which number is the odd one out: 79, 15, 65, 75? (a) 79 (b) 15 (c) 65 (d) 75
  25. 25.Which number is the odd one out: 2, 97, 37, 56? (a) 2 (b) 97 (c) 37 (d) 56
  26. 26.Which number is the odd one out: 11, 67, 92, 61? (a) 11 (b) 67 (c) 92 (d) 61
  27. 27.Which number is the odd one out: 14, 97, 19, 23? (a) 14 (b) 97 (c) 19 (d) 23
  28. 28.Which number is the odd one out: 79, 11, 37, 54? (a) 79 (b) 11 (c) 37 (d) 54
  29. 29.Which number is the odd one out: 78, 80, 48, 6? (a) 78 (b) 80 (c) 48 (d) 6
  30. 30.Which number is the odd one out: 11, 99, 83, 61? (a) 11 (b) 99 (c) 83 (d) 61
  31. 31.Which number is the odd one out: 19, 17, 45, 61? (a) 19 (b) 17 (c) 45 (d) 61
  32. 32.Which number is the odd one out: 30, 90, 18, 21? (a) 30 (b) 90 (c) 18 (d) 21
  33. 33.Which number is the odd one out: 25, 95, 4, 20? (a) 25 (b) 95 (c) 4 (d) 20
  34. 34.Which number is the odd one out: 47, 71, 39, 73? (a) 47 (b) 71 (c) 39 (d) 73
  35. 35.Which number is the odd one out: 47, 79, 34, 83? (a) 47 (b) 79 (c) 34 (d) 83
  36. 36.Which number is the odd one out: 90, 6, 50, 18? (a) 90 (b) 6 (c) 50 (d) 18
  37. 37.Which number is the odd one out: 41, 73, 27, 71? (a) 41 (b) 73 (c) 27 (d) 71
  38. 38.Which number is the odd one out: 84, 80, 6, 42? (a) 84 (b) 80 (c) 6 (d) 42
  39. 39.Which number is the odd one out: 31, 86, 53, 83? (a) 31 (b) 86 (c) 53 (d) 83
  40. 40.Which number is the odd one out: 59, 58, 2, 11? (a) 59 (b) 58 (c) 2 (d) 11

Answer key

  1. 38
  2. 36
  3. 85
  4. 6
  5. 18
  6. 84
  7. 18
  8. 18
  9. 88
  10. 99
  11. 68
  12. 91
  13. 76
  14. 18
  15. 16
  16. 36
  17. 35
  18. 18
  19. 54
  20. 25
  21. 96
  22. 20
  23. 39
  24. 79
  25. 56
  26. 92
  27. 14
  28. 54
  29. 80
  30. 99
  31. 45
  32. 21
  33. 4
  34. 39
  35. 34
  36. 50
  37. 27
  38. 80
  39. 86
  40. 58

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