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Odd One Out Numbers Worksheet

Logical reasoning lesson 3: Odd one out: numbers · Set 777 · 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: 88, 56, 49, 64? (a) 88 (b) 56 (c) 49 (d) 64
  2. 2.Which number is the odd one out: 23, 49, 97, 73? (a) 23 (b) 49 (c) 97 (d) 73
  3. 3.Which number is the odd one out: 24, 66, 55, 96? (a) 24 (b) 66 (c) 55 (d) 96
  4. 4.Which number is the odd one out: 53, 28, 97, 41? (a) 53 (b) 28 (c) 97 (d) 41
  5. 5.Which number is the odd one out: 70, 75, 91, 14? (a) 70 (b) 75 (c) 91 (d) 14
  6. 6.Which number is the odd one out: 25, 64, 35, 16? (a) 25 (b) 64 (c) 35 (d) 16
  7. 7.Which number is the odd one out: 71, 97, 53, 27? (a) 71 (b) 97 (c) 53 (d) 27
  8. 8.Which number is the odd one out: 43, 12, 53, 83? (a) 43 (b) 12 (c) 53 (d) 83
  9. 9.Which number is the odd one out: 43, 19, 24, 3? (a) 43 (b) 19 (c) 24 (d) 3
  10. 10.Which number is the odd one out: 97, 52, 43, 53? (a) 97 (b) 52 (c) 43 (d) 53
  11. 11.Which number is the odd one out: 47, 53, 79, 15? (a) 47 (b) 53 (c) 79 (d) 15
  12. 12.Which number is the odd one out: 26, 13, 19, 17? (a) 26 (b) 13 (c) 19 (d) 17
  13. 13.Which number is the odd one out: 37, 28, 59, 79? (a) 37 (b) 28 (c) 59 (d) 79
  14. 14.Which number is the odd one out: 69, 39, 5, 15? (a) 69 (b) 39 (c) 5 (d) 15
  15. 15.Which number is the odd one out: 13, 83, 69, 97? (a) 13 (b) 83 (c) 69 (d) 97
  16. 16.Which number is the odd one out: 33, 84, 89, 73? (a) 33 (b) 84 (c) 89 (d) 73
  17. 17.Which number is the odd one out: 75, 96, 30, 15? (a) 75 (b) 96 (c) 30 (d) 15
  18. 18.Which number is the odd one out: 61, 31, 44, 43? (a) 61 (b) 31 (c) 44 (d) 43
  19. 19.Which number is the odd one out: 67, 99, 31, 19? (a) 67 (b) 99 (c) 31 (d) 19
  20. 20.Which number is the odd one out: 13, 3, 23, 51? (a) 13 (b) 3 (c) 23 (d) 51
  21. 21.Which number is the odd one out: 79, 11, 13, 86? (a) 79 (b) 11 (c) 13 (d) 86
  22. 22.Which number is the odd one out: 81, 9, 70, 27? (a) 81 (b) 9 (c) 70 (d) 27
  23. 23.Which number is the odd one out: 43, 41, 19, 6? (a) 43 (b) 41 (c) 19 (d) 6
  24. 24.Which number is the odd one out: 25, 96, 93, 48? (a) 25 (b) 96 (c) 93 (d) 48
  25. 25.Which number is the odd one out: 18, 54, 95, 90? (a) 18 (b) 54 (c) 95 (d) 90
  26. 26.Which number is the odd one out: 73, 47, 89, 78? (a) 73 (b) 47 (c) 89 (d) 78
  27. 27.Which number is the odd one out: 13, 67, 19, 8? (a) 13 (b) 67 (c) 19 (d) 8
  28. 28.Which number is the odd one out: 54, 95, 10, 85? (a) 54 (b) 95 (c) 10 (d) 85
  29. 29.Which number is the odd one out: 36, 59, 67, 61? (a) 36 (b) 59 (c) 67 (d) 61
  30. 30.Which number is the odd one out: 41, 47, 51, 89? (a) 41 (b) 47 (c) 51 (d) 89
  31. 31.Which number is the odd one out: 48, 72, 81, 78? (a) 48 (b) 72 (c) 81 (d) 78
  32. 32.Which number is the odd one out: 64, 97, 37, 47? (a) 64 (b) 97 (c) 37 (d) 47
  33. 33.Which number is the odd one out: 80, 89, 61, 43? (a) 80 (b) 89 (c) 61 (d) 43
  34. 34.Which number is the odd one out: 83, 2, 18, 13? (a) 83 (b) 2 (c) 18 (d) 13
  35. 35.Which number is the odd one out: 17, 36, 53, 2? (a) 17 (b) 36 (c) 53 (d) 2
  36. 36.Which number is the odd one out: 93, 83, 87, 51? (a) 93 (b) 83 (c) 87 (d) 51
  37. 37.Which number is the odd one out: 53, 56, 17, 83? (a) 53 (b) 56 (c) 17 (d) 83
  38. 38.Which number is the odd one out: 83, 71, 23, 32? (a) 83 (b) 71 (c) 23 (d) 32
  39. 39.Which number is the odd one out: 10, 11, 2, 41? (a) 10 (b) 11 (c) 2 (d) 41
  40. 40.Which number is the odd one out: 47, 80, 83, 13? (a) 47 (b) 80 (c) 83 (d) 13

Answer key

  1. 49
  2. 49
  3. 55
  4. 28
  5. 75
  6. 35
  7. 27
  8. 12
  9. 24
  10. 52
  11. 15
  12. 26
  13. 28
  14. 5
  15. 69
  16. 84
  17. 96
  18. 44
  19. 99
  20. 51
  21. 86
  22. 70
  23. 6
  24. 25
  25. 95
  26. 78
  27. 8
  28. 54
  29. 36
  30. 51
  31. 81
  32. 64
  33. 80
  34. 18
  35. 36
  36. 83
  37. 56
  38. 32
  39. 10
  40. 80

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