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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 458 · 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, 78, 37, 43? (a) 11 (b) 78 (c) 37 (d) 43
  2. 2.Which number is the odd one out: 98, 23, 19, 17? (a) 98 (b) 23 (c) 19 (d) 17
  3. 3.Which number is the odd one out: 13, 3, 19, 84? (a) 13 (b) 3 (c) 19 (d) 84
  4. 4.Which number is the odd one out: 61, 59, 92, 17? (a) 61 (b) 59 (c) 92 (d) 17
  5. 5.Which number is the odd one out: 30, 37, 55, 61? (a) 30 (b) 37 (c) 55 (d) 61
  6. 6.Which number is the odd one out: 17, 43, 10, 5? (a) 17 (b) 43 (c) 10 (d) 5
  7. 7.Which number is the odd one out: 6, 96, 11, 48? (a) 6 (b) 96 (c) 11 (d) 48
  8. 8.Which number is the odd one out: 96, 24, 97, 48? (a) 96 (b) 24 (c) 97 (d) 48
  9. 9.Which number is the odd one out: 96, 45, 24, 90? (a) 96 (b) 45 (c) 24 (d) 90
  10. 10.Which number is the odd one out: 3, 43, 29, 78? (a) 3 (b) 43 (c) 29 (d) 78
  11. 11.Which number is the odd one out: 13, 83, 10, 41? (a) 13 (b) 83 (c) 10 (d) 41
  12. 12.Which number is the odd one out: 45, 97, 71, 19? (a) 45 (b) 97 (c) 71 (d) 19
  13. 13.Which number is the odd one out: 80, 95, 32, 85? (a) 80 (b) 95 (c) 32 (d) 85
  14. 14.Which number is the odd one out: 7, 8, 80, 40? (a) 7 (b) 8 (c) 80 (d) 40
  15. 15.Which number is the odd one out: 79, 89, 76, 13? (a) 79 (b) 89 (c) 76 (d) 13
  16. 16.Which number is the odd one out: 4, 65, 9, 45? (a) 4 (b) 65 (c) 9 (d) 45
  17. 17.Which number is the odd one out: 59, 86, 71, 37? (a) 59 (b) 86 (c) 71 (d) 37
  18. 18.Which number is the odd one out: 5, 89, 60, 53? (a) 5 (b) 89 (c) 60 (d) 53
  19. 19.Which number is the odd one out: 12, 35, 6, 60? (a) 12 (b) 35 (c) 6 (d) 60
  20. 20.Which number is the odd one out: 83, 47, 77, 13? (a) 83 (b) 47 (c) 77 (d) 13
  21. 21.Which number is the odd one out: 11, 53, 63, 3? (a) 11 (b) 53 (c) 63 (d) 3
  22. 22.Which number is the odd one out: 7, 73, 84, 61? (a) 7 (b) 73 (c) 84 (d) 61
  23. 23.Which number is the odd one out: 45, 74, 8, 80? (a) 45 (b) 74 (c) 8 (d) 80
  24. 24.Which number is the odd one out: 2, 59, 42, 79? (a) 2 (b) 59 (c) 42 (d) 79
  25. 25.Which number is the odd one out: 61, 11, 72, 23? (a) 61 (b) 11 (c) 72 (d) 23
  26. 26.Which number is the odd one out: 47, 61, 66, 13? (a) 47 (b) 61 (c) 66 (d) 13
  27. 27.Which number is the odd one out: 34, 89, 47, 61? (a) 34 (b) 89 (c) 47 (d) 61
  28. 28.Which number is the odd one out: 60, 75, 36, 15? (a) 60 (b) 75 (c) 36 (d) 15
  29. 29.Which number is the odd one out: 69, 77, 33, 56? (a) 69 (b) 77 (c) 33 (d) 56
  30. 30.Which number is the odd one out: 83, 2, 13, 36? (a) 83 (b) 2 (c) 13 (d) 36
  31. 31.Which number is the odd one out: 22, 11, 59, 79? (a) 22 (b) 11 (c) 59 (d) 79
  32. 32.Which number is the odd one out: 38, 79, 67, 19? (a) 38 (b) 79 (c) 67 (d) 19
  33. 33.Which number is the odd one out: 41, 53, 49, 97? (a) 41 (b) 53 (c) 49 (d) 97
  34. 34.Which number is the odd one out: 35, 48, 8, 96? (a) 35 (b) 48 (c) 8 (d) 96
  35. 35.Which number is the odd one out: 53, 92, 97, 29? (a) 53 (b) 92 (c) 97 (d) 29
  36. 36.Which number is the odd one out: 27, 17, 97, 29? (a) 27 (b) 17 (c) 97 (d) 29
  37. 37.Which number is the odd one out: 42, 28, 84, 19? (a) 42 (b) 28 (c) 84 (d) 19
  38. 38.Which number is the odd one out: 72, 71, 47, 17? (a) 72 (b) 71 (c) 47 (d) 17
  39. 39.Which number is the odd one out: 18, 47, 59, 61? (a) 18 (b) 47 (c) 59 (d) 61
  40. 40.Which number is the odd one out: 73, 26, 97, 13? (a) 73 (b) 26 (c) 97 (d) 13

Answer key

  1. 78
  2. 98
  3. 84
  4. 92
  5. 30
  6. 10
  7. 11
  8. 97
  9. 45
  10. 78
  11. 10
  12. 45
  13. 32
  14. 7
  15. 76
  16. 4
  17. 86
  18. 60
  19. 35
  20. 77
  21. 63
  22. 84
  23. 45
  24. 42
  25. 72
  26. 66
  27. 34
  28. 36
  29. 56
  30. 36
  31. 22
  32. 38
  33. 49
  34. 35
  35. 92
  36. 27
  37. 19
  38. 72
  39. 18
  40. 26

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