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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 172 · 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: 11, 83, 23, 25? (a) 11 (b) 83 (c) 23 (d) 25
  2. 2.Which number is the odd one out: 77, 91, 8, 98? (a) 77 (b) 91 (c) 8 (d) 98
  3. 3.Which number is the odd one out: 76, 68, 42, 52? (a) 76 (b) 68 (c) 42 (d) 52
  4. 4.Which number is the odd one out: 50, 78, 30, 47? (a) 50 (b) 78 (c) 30 (d) 47
  5. 5.Which number is the odd one out: 43, 53, 11, 66? (a) 43 (b) 53 (c) 11 (d) 66
  6. 6.Which number is the odd one out: 28, 24, 32, 96? (a) 28 (b) 24 (c) 32 (d) 96
  7. 7.Which number is the odd one out: 89, 17, 23, 84? (a) 89 (b) 17 (c) 23 (d) 84
  8. 8.Which number is the odd one out: 67, 78, 3, 6? (a) 67 (b) 78 (c) 3 (d) 6
  9. 9.Which number is the odd one out: 12, 48, 79, 96? (a) 12 (b) 48 (c) 79 (d) 96
  10. 10.Which number is the odd one out: 21, 12, 48, 24? (a) 21 (b) 12 (c) 48 (d) 24
  11. 11.Which number is the odd one out: 91, 76, 77, 98? (a) 91 (b) 76 (c) 77 (d) 98
  12. 12.Which number is the odd one out: 21, 3, 19, 61? (a) 21 (b) 3 (c) 19 (d) 61
  13. 13.Which number is the odd one out: 19, 71, 37, 63? (a) 19 (b) 71 (c) 37 (d) 63
  14. 14.Which number is the odd one out: 59, 48, 32, 12? (a) 59 (b) 48 (c) 32 (d) 12
  15. 15.Which number is the odd one out: 47, 2, 73, 46? (a) 47 (b) 2 (c) 73 (d) 46
  16. 16.Which number is the odd one out: 9, 79, 53, 3? (a) 9 (b) 79 (c) 53 (d) 3
  17. 17.Which number is the odd one out: 84, 47, 29, 23? (a) 84 (b) 47 (c) 29 (d) 23
  18. 18.Which number is the odd one out: 23, 14, 7, 83? (a) 23 (b) 14 (c) 7 (d) 83
  19. 19.Which number is the odd one out: 77, 61, 47, 29? (a) 77 (b) 61 (c) 47 (d) 29
  20. 20.Which number is the odd one out: 48, 96, 79, 24? (a) 48 (b) 96 (c) 79 (d) 24
  21. 21.Which number is the odd one out: 4, 16, 64, 76? (a) 4 (b) 16 (c) 64 (d) 76
  22. 22.Which number is the odd one out: 43, 44, 31, 29? (a) 43 (b) 44 (c) 31 (d) 29
  23. 23.Which number is the odd one out: 89, 67, 38, 53? (a) 89 (b) 67 (c) 38 (d) 53
  24. 24.Which number is the odd one out: 79, 43, 84, 19? (a) 79 (b) 43 (c) 84 (d) 19
  25. 25.Which number is the odd one out: 5, 41, 50, 10? (a) 5 (b) 41 (c) 50 (d) 10
  26. 26.Which number is the odd one out: 76, 67, 11, 73? (a) 76 (b) 67 (c) 11 (d) 73
  27. 27.Which number is the odd one out: 35, 64, 4, 40? (a) 35 (b) 64 (c) 4 (d) 40
  28. 28.Which number is the odd one out: 2, 59, 68, 79? (a) 2 (b) 59 (c) 68 (d) 79
  29. 29.Which number is the odd one out: 88, 96, 38, 12? (a) 88 (b) 96 (c) 38 (d) 12
  30. 30.Which number is the odd one out: 43, 28, 97, 47? (a) 43 (b) 28 (c) 97 (d) 47
  31. 31.Which number is the odd one out: 13, 43, 11, 51? (a) 13 (b) 43 (c) 11 (d) 51
  32. 32.Which number is the odd one out: 86, 43, 11, 37? (a) 86 (b) 43 (c) 11 (d) 37
  33. 33.Which number is the odd one out: 41, 43, 33, 71? (a) 41 (b) 43 (c) 33 (d) 71
  34. 34.Which number is the odd one out: 77, 7, 47, 53? (a) 77 (b) 7 (c) 47 (d) 53
  35. 35.Which number is the odd one out: 19, 29, 39, 47? (a) 19 (b) 29 (c) 39 (d) 47
  36. 36.Which number is the odd one out: 7, 18, 54, 38? (a) 7 (b) 18 (c) 54 (d) 38
  37. 37.Which number is the odd one out: 27, 63, 99, 56? (a) 27 (b) 63 (c) 99 (d) 56
  38. 38.Which number is the odd one out: 70, 80, 49, 40? (a) 70 (b) 80 (c) 49 (d) 40
  39. 39.Which number is the odd one out: 23, 77, 41, 47? (a) 23 (b) 77 (c) 41 (d) 47
  40. 40.Which number is the odd one out: 41, 43, 63, 59? (a) 41 (b) 43 (c) 63 (d) 59

Answer key

  1. 25
  2. 8
  3. 42
  4. 47
  5. 66
  6. 28
  7. 84
  8. 67
  9. 79
  10. 21
  11. 76
  12. 21
  13. 63
  14. 59
  15. 46
  16. 9
  17. 84
  18. 14
  19. 77
  20. 79
  21. 76
  22. 44
  23. 38
  24. 84
  25. 41
  26. 76
  27. 35
  28. 68
  29. 38
  30. 28
  31. 51
  32. 86
  33. 33
  34. 77
  35. 39
  36. 7
  37. 56
  38. 49
  39. 77
  40. 63

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